Fix PHPDocs for the method get_course_field_value()

Also minor changes like ordering strings alphabetically and adding
full-stops.

.travis.yml

@@ -0,0 +1,52 @@
+language: php
+
+# For javascript behat tests we need sudo
+sudo: true
+dist: trusty
+
+cache:
+  directories:
+    - $HOME/.composer/cache
+    - $HOME/.npm
+
+php:
+ - 7.1
+ - 7.2
+
+addons:
+ firefox: 47.0.1
+ postgresql: 9.4
+ apt:
+   packages:
+    - openjdk-8-jre-headless
+
+env:
+ global:
+  - MOODLE_BRANCH=MOODLE_37_STABLE
+  - IGNORE_NAMES=mobile_*.mustache # Mobile mustache has specific syntax, ignore their templates
+ matrix:
+  - DB=pgsql
+  - DB=mysqli
+
+before_install:
+  - phpenv config-rm xdebug.ini
+  - nvm install 14.0
+  - nvm use 14.0
+  - cd ../..
+  - composer create-project -n --no-dev --prefer-dist moodlehq/moodle-plugin-ci ci ^3
+  - export PATH="$(cd ci/bin; pwd):$(cd ci/vendor/bin; pwd):$PATH"
+
+install:
+  - moodle-plugin-ci install
+
+script:
+  - moodle-plugin-ci phplint
+  # - moodle-plugin-ci phpcpd # subplugins often have similar code and cause "duplicated code" errors
+  # - moodle-plugin-ci phpmd # too much noise from this check, maybe, some day...
+  - moodle-plugin-ci codechecker
+  - moodle-plugin-ci validate
+  - moodle-plugin-ci savepoints
+  - moodle-plugin-ci mustache
+  - moodle-plugin-ci grunt -t stylelint:css -t js
+  - moodle-plugin-ci phpunit
+  - moodle-plugin-ci behat

CHANGES.md

@@ -0,0 +1,266 @@
+# Changelog
+
+All notable changes to this project will be documented in this file. 
+
+Note - All hash comments refer to the issue number. Eg. #169 refers to https://github.com/mdjnelson/moodle-mod_customcert/issues/169.
+
+## [3.7.5] - 2020-11-26
+
+### Added
+
+- Added ability to select outcomes in the Grade element (#329).
+- The Grade Item Name element now works with all grade items, whereas before it was just activities (#346).
+- Added enrolment start and end dates to the date element (#328).
+- Added username to userfield form element (#390).
+
+### Changed
+
+- Removed unnecessary and confusing 'exampledata' string.
+- Do not email those who can manage the certificate (#376).
+- Do not force the PDF to be downloaded, instead send the file inline to the browser (#153).
+- Updated the 'emailstudents_help', 'emailteachers_help' and 'emailothers_help' strings to warn users about prematurely emailing the certificate (#276).
+- Do not email out certificates that contain no elements (#276).
+
+### Fixed
+
+- Certificates now get marked as viewed via the mobile app (#342).
+- Custom fields not displaying properly (#359).
+- Fix repositioning elements page when resizing the browser (#343).
+- Prevent error when duplicate issues exist when using the code element (#363).
+- Implemented get_objectid_mapping for the course_module_viewed.php event to avoid warning (#374).
+- Fixed exception being thrown when loading a template that has an image element but no image selected (#369).
+- Fixed issue with PDF being generated without a name (#333).
+
+## [3.7.4] - 2020-03-12
+
+### Added
+
+- Added extra Behat steps for new elements (#309).
+
+### Changed
+
+- When copying a site template the site images are also copied to the course context and then those copied images are used.
+  Before, the elements would simply point to the site images. However, this meant when performing a backup/restore the
+  images were not stored in the backup file (#298).
+
+### Fixed
+
+- Fixed the displaying of names of a custom user field (#326).
+- Do not allow '0' as a value for width or height in QR code (#321).
+
+## [3.7.3] - 2020-03-09
+
+### Fixed
+
+- Fixed foreign key violation (#331).
+
+## [3.7.2] - 2020-02-01
+
+### Added
+
+- Re-added 'code' column to user report (#264).
+- Add 'userfullname' variable for email subject (#316).
+
+### Fixed
+
+- Do not fail if multiple certificate issues (#304) and (#295).
+
+## [3.7.1] - 2019-06-17
+
+### Added
+
+- Added new custom course field element (#274).
+- Added ability to specify the current date for date related elements (#289).
+
+### Changed
+
+- String improvements for the 'Date range' element.
+
+### Fixed
+
+- Use negative numbers for constants in the 'Date range' element. The reason being that we may have a module
+  that has an id matching one of these positive values. Sites which are using the 'Date range' element (sites
+  which are **not** using this element do **not** have to do anything) will need to re-edit each element, select
+  the date item again and save. An upgrade step was not created because it is impossible to tell if the site does
+  actually want the constant or if they actually want the date for the module.
+
+## [3.6.2] - 2019-05-28
+
+### Changed
+
+- Always send emails from the 'noreplyuser' (#165).
+
+### Added
+
+- Added QR code element (#146).
+- Added Date range element (#185).
+- Added the number of certificates issued above the report (#266).
+- Added new capability to control who can be issued a certificate (#270).
+
+### Fixed
+
+- Failures when running unit tests for multiple activities (#282).
+- Check that a certificate is valid before downloading on 'My certificates' page (#269).
+
+## [3.6.1] - 2018-12-31
+
+### Changed
+
+- Make it clear what element values are just an example when previewing the PDF (#144).
+
+### Fixed
+
+- Missing implementation for privacy provider (#260).
+- Use course module context when calling format_string/text (#200).
+- Exception being thrown when adding the 'teachername' element to site template (#261).
+
+## [3.5.5] - 2018-12-20
+### Added
+
+- GDPR: Add support for removal of users from a context (see MDL-62560) (#252).
+- Images can be made transparent (#186).
+- Set default values of activity instance settings (#180).
+- Allow element plugins to control if they can be added to a certificate (#225).
+- Allow element plugins to have their own admin settings (#213).
+- Added plaintext language variants for email bodies (#231).
+- Added possibility to selectively disable activity instance settings (#179).
+
+### Changed
+
+- Allow verification of deleted users (#159).
+- The 'element' field in the 'customcert_elements' table has been changed from a Text field to varchar(255) (#241).
+- The 'Completion date' option in the 'date' element is only displayed when completion is enabled (#160).
+- Instead of assuming 2 decimal points for percentages, we now make use of the decimal value setting, which the
+  function `grade_format_gradevalue` does by default if no decimal value is passed.
+
+### Fixed
+
+- Issue with scales not displaying correctly (#242).
+- The report now respects the setting 'Show user identity' (#224).
+- Removed incorrect course reset logic (#223).
+- Description strings referring to the wrong setting (#254).
+
+## [3.5.4] - 2018-07-13
+### Fixed
+
+- Use custom fonts if present (#211).
+- Fix broken SQL on Oracle in the email certificate task (#187).
+- Fixed exception when clicking 'Add page' when template has not been saved (#154).
+- Only email teachers who are enrolled within the course (#176).
+- Only display teachers who are enrolled within the course in the dropdown (#171).
+
+### Changed
+
+- Multiple UX improvements to both the browser and mobile views (#207).
+  - One big change here is combining the report and activity view page into one.
+- Allow short dates with leading zeros (#210).
+
+## [3.5.3] - 2018-06-26
+### Fixed
+
+- Respect filters in the 'My certificates' and 'Verify certificate' pages (#197).
+- Fixed reference to 'mod/certificate' capability.
+
+### Changed
+
+- Multiple UX improvements to both the browser and mobile views (#203).
+
+## [3.5.2] - 2018-06-07
+### Fixed
+
+- Hotfix to prevent misalignment of 'text' elements after last release (#196).
+
+## [3.5.1] - 2018-06-06
+### Added
+- Mobile app support (#70).
+```
+    This allows students to view the activity and download
+    their certificate. It also allows teachers to view the
+    list of issued certificates, with the ability to revoke
+    any.
+    
+    This is for the soon-to-be released Moodle Mobile v3.5.0 
+    (not to be confused with your Moodle site version) and
+    will not work on Mobile versions earlier than this.
+    
+    If you are running a Moodle site on version 3.4 or below
+    you will need to install the local_mobile plugin in order
+    for this to work.
+    
+    If you are running a Moodle site on version 3.0 or below
+    then you will need to upgrade.
+```
+- More font sizes (#148).
+- Added new download icon.
+```
+    This was done because the core 'import' icon was mapped
+    to the Font Awesome icon 'fa-level-up' which did not look
+    appropriate. So, a new icon was added and that was mapped
+    to the 'fa-download' icon.
+```
+### Fixed
+- No longer display the 'action' column and user picture URL when downloading the user report (#192).
+- Elements no longer ignore filters (#170).
+
+## [3.4.1] - 2018-05-17
+### Added
+- GDPR Compliance (#189).
+
+### Fixed
+- Race condition on certificate issues in scheduled task (#173).
+- Ensure we backup the 'verifyany' setting (#169).
+- Fixed encoding content links used by restore (#166).
+
+## [3.3.9] - 2017-11-13
+### Added
+- Added capability ```mod/customcert:verifyallcertificates``` that provides a user with the ability to verify any certificate
+  on the site by simply visiting the ```mod/customcert/verify_certificate.php``` page, rather than having to go to the
+  verification link for each certificate.
+- Added site setting ```customcert/verifyallcertificates``` which when enabled allows any person (including users not logged in)
+  to be able to verify any certificate on the site, rather than having to go to the verification link for each certificate.
+  However, this only applies to certificates where ```Allow anyone to verify a certificate``` has been set to ```Yes``` in the
+  certificate settings.
+- You can now display the grade and date of all grade items, not just the course and course activities.
+- Text has been added above the ```My certificates``` list to explain that it contains certificates that have been issued to
+  avoid confusion as to why certificates may not be appearing.
+
+### Changed
+- The course full name is now used in emails.
+
+### Fixed
+- Added missing string used in course reset.
+
+## [3.3.8] - 2017-09-04
+### Added
+- New digital signature element (uses existing functionality in the TCPDF library).
+- Ability to duplicate site templates via the manage templates page.
+- Ability to delete issued certificates for individual users on the course report page.
+
+### Changed
+- Removed usage of magic getter and abuse of ```$this->element```. The variable ```$this->element``` will still be
+  accessible by any third-party element plugins, though this is discouraged and the appropriate ```get_xxx()```
+  method should be used instead. Using ```$this->element``` in ```definition_after_data()``` will no longer work.
+  Please explicitly set the value of any custom fields you have in the form.
+
+### Fixed
+- Added missing ```confirm_sesskey()``` checks.
+- Minor bug fixes.
+
+## [3.3.7] - 2017-08-11
+### Added
+- Added much needed Behat test coverage.
+
+### Changed
+- Minor language string changes.
+- Made changes to the UI when editing a certificate.
+  - Moved the 'Add element' submit button below the list of elements.
+  - Added icon next to the 'Delete page' link.
+  - Changed the 'Add page' button to a link, added an icon and moved it's location to the right.
+  - Do not make all submit buttons primary. MDL-59740 needs to be applied to your Moodle install in order to notice the change.
+
+### Fixed
+- Issue where the date an activity was graded was not displaying at all.
+
+## [3.3.6] - 2017-08-05
+### Changed
+- Renamed the column 'size' in the table 'customcert_elements' to 'fontsize' due to 'size' being a reserved word in Oracle.

ajax.php

@@ -0,0 +1,57 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Handles AJAX requests for the customcert module.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once(__DIR__ . '/../../config.php');
+
+if (!defined('AJAX_SCRIPT')) {
+    define('AJAX_SCRIPT', true);
+}
+
+$tid = required_param('tid', PARAM_INT);
+$values = required_param('values', PARAM_RAW);
+$values = json_decode($values);
+
+// Make sure the template exists.
+$template = $DB->get_record('customcert_templates', array('id' => $tid), '*', MUST_EXIST);
+
+// Set the template.
+$template = new \mod_customcert\template($template);
+// Perform checks.
+if ($cm = $template->get_cm()) {
+    $courseid = $cm->course;
+    require_login($courseid, false, $cm);
+} else {
+    require_login();
+}
+// Make sure the user has the required capabilities.
+$template->require_manage();
+
+// Loop through the data.
+foreach ($values as $value) {
+    $element = new stdClass();
+    $element->id = $value->id;
+    $element->posx = $value->posx;
+    $element->posy = $value->posy;
+    $DB->update_record('customcert_elements', $element);
+}

amd/build/dialogue.min.js

@@ -0,0 +1 @@
+define(["core/yui"],function(a){var b=function(b,c,d,e,f){this.yuiDialogue=null;var g=this;"undefined"==typeof f&&(f=!1),a.use("moodle-core-notification","timers",function(){var h="480px";f&&(h="800px"),g.yuiDialogue=new M.core.dialogue({headerContent:b,bodyContent:c,draggable:!0,visible:!1,center:!0,modal:!0,width:h}),g.yuiDialogue.after("visibleChange",function(b){b.newVal?"undefined"!=typeof d&&a.soon(function(){d(g),g.yuiDialogue.centerDialogue()}):"undefined"!=typeof e&&a.soon(function(){e(g)})}),g.yuiDialogue.show()})};return b.prototype.close=function(){this.yuiDialogue.hide(),this.yuiDialogue.destroy()},b.prototype.getContent=function(){return this.yuiDialogue.bodyNode.getDOMNode()},b});

amd/build/rearrange-area.min.js

@@ -0,0 +1 @@
+define(["jquery","core/yui","core/fragment","mod_customcert/dialogue","core/notification","core/str","core/templates","core/ajax"],function(a,b,c,d,e,f,g,h){var i=function(b){this._node=a(b),this._setEvents()};return i.prototype.CUSTOMCERT_REF_POINT_TOPLEFT=0,i.prototype.CUSTOMCERT_REF_POINT_TOPCENTER=1,i.prototype.CUSTOMCERT_REF_POINT_TOPRIGHT=2,i.prototype.PIXELSINMM=3.779527559055,i.prototype._setEvents=function(){this._node.on("click",".element",this._editElement.bind(this))},i.prototype._editElement=function(a){var g=a.currentTarget.id.substr(8),h=this._node.attr("data-contextid"),i={elementid:g};c.loadFragment("mod_customcert","editelement",h,i).done(function(a,c){f.get_string("editelement","mod_customcert").done(function(e){b.use("moodle-core-formchangechecker",function(){new d(e,"<div id='elementcontent'></div>",this._editElementDialogueConfig.bind(this,g,a,c),(void 0),(!0))}.bind(this))}.bind(this))}.bind(this)).fail(e.exception)},i.prototype._editElementDialogueConfig=function(b,c,d,f){g.replaceNode("#elementcontent",c,d),this._setPositionInForm(b);var h=a(f.getContent());h.on("click","#id_submitbutton",function(c){M.core_formchangechecker.reset_form_dirty_state(),this._saveElement(b).then(function(){this._getElementHTML(b).done(function(c){var d=this._node.find("#element-"+b),e=parseInt(a("#id_refpoint").val()),g="";e==this.CUSTOMCERT_REF_POINT_TOPLEFT?g="refpoint-left":e==this.CUSTOMCERT_REF_POINT_TOPCENTER?g="refpoint-center":e==this.CUSTOMCERT_REF_POINT_TOPRIGHT&&(g="refpoint-right"),d.empty().append(c),d.removeClass(),d.addClass("element "+g),d.attr("data-refpoint",e);var h=a("#editelementform #id_posx").val(),i=a("#editelementform #id_posy").val();this._setPosition(b,e,h,i),f.close()}.bind(this))}.bind(this)).fail(e.exception),c.preventDefault()}.bind(this)),h.on("click","#id_cancel",function(a){f.close(),a.preventDefault()})},i.prototype._setPosition=function(a,c,d,e){var f=b.one("#element-"+a);d=b.one("#pdf").getX()+d*this.PIXELSINMM,e=b.one("#pdf").getY()+e*this.PIXELSINMM;var g=parseFloat(f.getComputedStyle("width")),h=f.width*this.PIXELSINMM;switch(h&&g>h&&(g=h),c){case this.CUSTOMCERT_REF_POINT_TOPCENTER:d-=g/2;break;case this.CUSTOMCERT_REF_POINT_TOPRIGHT:d=d-g+2}f.setX(d),f.setY(e)},i.prototype._setPositionInForm=function(c){var d=a("#editelementform #id_posx"),e=a("#editelementform #id_posy");if(d.length&&e.length){var f=b.one("#element-"+c),g=f.getX()-b.one("#pdf").getX(),h=f.getY()-b.one("#pdf").getY(),i=parseInt(f.getData("refpoint")),j=parseFloat(f.getComputedStyle("width"));switch(i){case this.CUSTOMCERT_REF_POINT_TOPCENTER:g+=j/2;break;case this.CUSTOMCERT_REF_POINT_TOPRIGHT:g+=j}g=Math.round(parseFloat(g/this.PIXELSINMM)),h=Math.round(parseFloat(h/this.PIXELSINMM)),d.val(g),e.val(h)}},i.prototype._getElementHTML=function(a){var b=this._node.attr("data-templateid"),c=h.call([{methodname:"mod_customcert_get_element_html",args:{templateid:b,elementid:a}}]);return c[0]},i.prototype._saveElement=function(b){var c=this._node.attr("data-templateid"),d=a("#editelementform").serializeArray(),e=h.call([{methodname:"mod_customcert_save_element",args:{templateid:c,elementid:b,values:d}}]);return e[0]},{init:function(a){new i(a)}}});

amd/src/dialogue.js

@@ -0,0 +1,102 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Wrapper for the YUI M.core.notification class. Allows us to
+ * use the YUI version in AMD code until it is replaced.
+ *
+ * @module     mod_customcert/dialogue
+ * @package    mod_customcert
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define(['core/yui'], function(Y) {
+
+    /**
+     * Constructor
+     *
+     * @param {String} title Title for the window.
+     * @param {String} content The content for the window.
+     * @param {function} afterShow Callback executed after the window is opened.
+     * @param {function} afterHide Callback executed after the window is closed.
+     * @param {Boolean} wide Specify we want an extra wide dialogue (the size is standard, but wider than the default).
+     */
+    var dialogue = function(title, content, afterShow, afterHide, wide) {
+        this.yuiDialogue = null;
+        var parent = this;
+
+        // Default for wide is false.
+        if (typeof wide == 'undefined') {
+            wide = false;
+        }
+
+        Y.use('moodle-core-notification', 'timers', function() {
+            var width = '480px';
+            if (wide) {
+                width = '800px';
+            }
+
+            parent.yuiDialogue = new M.core.dialogue({
+                headerContent: title,
+                bodyContent: content,
+                draggable: true,
+                visible: false,
+                center: true,
+                modal: true,
+                width: width
+            });
+
+            parent.yuiDialogue.after('visibleChange', function(e) {
+                if (e.newVal) {
+                    // Delay the callback call to the next tick, otherwise it can happen that it is
+                    // executed before the dialogue constructor returns.
+                    if ((typeof afterShow !== 'undefined')) {
+                        Y.soon(function() {
+                            afterShow(parent);
+                            parent.yuiDialogue.centerDialogue();
+                        });
+                    }
+                } else {
+                    if ((typeof afterHide !== 'undefined')) {
+                        Y.soon(function() {
+                            afterHide(parent);
+                        });
+                    }
+                }
+            });
+
+            parent.yuiDialogue.show();
+        });
+    };
+
+    /**
+     * Close this window.
+     */
+    dialogue.prototype.close = function() {
+        this.yuiDialogue.hide();
+        this.yuiDialogue.destroy();
+    };
+
+    /**
+     * Get content.
+     *
+     * @returns {HTMLElement}
+     */
+    dialogue.prototype.getContent = function() {
+        return this.yuiDialogue.bodyNode.getDOMNode();
+    };
+
+    return dialogue;
+});

amd/src/rearrange-area.js

@@ -0,0 +1,213 @@
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * AMD module used when rearranging a custom certificate.
+ *
+ * @module     mod_customcert/rearrange-area
+ * @package    mod_customcert
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+define(['jquery', 'core/yui', 'core/fragment', 'mod_customcert/dialogue', 'core/notification',
+        'core/str', 'core/templates', 'core/ajax'],
+        function($, Y, fragment, Dialogue, notification, str, template, ajax) {
+
+            /**
+             * RearrangeArea class.
+             *
+             * @param {String} selector The rearrange PDF selector
+             */
+            var RearrangeArea = function(selector) {
+                this._node = $(selector);
+                this._setEvents();
+            };
+
+            RearrangeArea.prototype.CUSTOMCERT_REF_POINT_TOPLEFT = 0;
+            RearrangeArea.prototype.CUSTOMCERT_REF_POINT_TOPCENTER = 1;
+            RearrangeArea.prototype.CUSTOMCERT_REF_POINT_TOPRIGHT = 2;
+            RearrangeArea.prototype.PIXELSINMM = 3.779527559055;
+
+            RearrangeArea.prototype._setEvents = function() {
+                this._node.on('click', '.element', this._editElement.bind(this));
+            };
+
+            RearrangeArea.prototype._editElement = function(event) {
+                var elementid = event.currentTarget.id.substr(8);
+                var contextid = this._node.attr('data-contextid');
+                var params = {
+                    'elementid': elementid
+                };
+
+                fragment.loadFragment('mod_customcert', 'editelement', contextid, params).done(function(html, js) {
+                    str.get_string('editelement', 'mod_customcert').done(function(title) {
+                        Y.use('moodle-core-formchangechecker', function() {
+                            new Dialogue(
+                                title,
+                                '<div id=\'elementcontent\'></div>',
+                                this._editElementDialogueConfig.bind(this, elementid, html, js),
+                                undefined,
+                                true
+                            );
+                        }.bind(this));
+                    }.bind(this));
+                }.bind(this)).fail(notification.exception);
+            };
+
+            RearrangeArea.prototype._editElementDialogueConfig = function(elementid, html, js, popup) {
+                // Place the content in the dialogue.
+                template.replaceNode('#elementcontent', html, js);
+
+                // We may have dragged the element changing it's position.
+                // Ensure the form has the current up-to-date location.
+                this._setPositionInForm(elementid);
+
+                // Add events for when we save, close and cancel the page.
+                var body = $(popup.getContent());
+                body.on('click', '#id_submitbutton', function(e) {
+                    // Do not want to ask the user if they wish to stay on page after saving.
+                    M.core_formchangechecker.reset_form_dirty_state();
+                    // Save the data.
+                    this._saveElement(elementid).then(function() {
+                        // Update the DOM to reflect the adjusted value.
+                        this._getElementHTML(elementid).done(function(html) {
+                            var elementNode = this._node.find('#element-' + elementid);
+                            var refpoint = parseInt($('#id_refpoint').val());
+                            var refpointClass = '';
+                            if (refpoint == this.CUSTOMCERT_REF_POINT_TOPLEFT) {
+                                refpointClass = 'refpoint-left';
+                            } else if (refpoint == this.CUSTOMCERT_REF_POINT_TOPCENTER) {
+                                refpointClass = 'refpoint-center';
+                            } else if (refpoint == this.CUSTOMCERT_REF_POINT_TOPRIGHT) {
+                                refpointClass = 'refpoint-right';
+                            }
+                            elementNode.empty().append(html);
+                            // Update the ref point.
+                            elementNode.removeClass();
+                            elementNode.addClass('element ' + refpointClass);
+                            elementNode.attr('data-refpoint', refpoint);
+                            // Move the element.
+                            var posx = $('#editelementform #id_posx').val();
+                            var posy = $('#editelementform #id_posy').val();
+                            this._setPosition(elementid, refpoint, posx, posy);
+                            // All done.
+                            popup.close();
+                        }.bind(this));
+                    }.bind(this)).fail(notification.exception);
+                    e.preventDefault();
+                }.bind(this));
+
+                body.on('click', '#id_cancel', function(e) {
+                    popup.close();
+                    e.preventDefault();
+                });
+            };
+
+            RearrangeArea.prototype._setPosition = function(elementid, refpoint, posx, posy) {
+                var element = Y.one('#element-' + elementid);
+
+                posx = Y.one('#pdf').getX() + posx * this.PIXELSINMM;
+                posy = Y.one('#pdf').getY() + posy * this.PIXELSINMM;
+                var nodewidth = parseFloat(element.getComputedStyle('width'));
+                var maxwidth = element.width * this.PIXELSINMM;
+
+                if (maxwidth && (nodewidth > maxwidth)) {
+                    nodewidth = maxwidth;
+                }
+
+                switch (refpoint) {
+                    case this.CUSTOMCERT_REF_POINT_TOPCENTER:
+                        posx -= nodewidth / 2;
+                        break;
+                    case this.CUSTOMCERT_REF_POINT_TOPRIGHT:
+                        posx = posx - nodewidth + 2;
+                        break;
+                }
+
+                element.setX(posx);
+                element.setY(posy);
+            };
+
+            RearrangeArea.prototype._setPositionInForm = function(elementid) {
+                var posxelement = $('#editelementform #id_posx');
+                var posyelement = $('#editelementform #id_posy');
+
+                if (posxelement.length && posyelement.length) {
+                    var element = Y.one('#element-' + elementid);
+                    var posx = element.getX() - Y.one('#pdf').getX();
+                    var posy = element.getY() - Y.one('#pdf').getY();
+                    var refpoint = parseInt(element.getData('refpoint'));
+                    var nodewidth = parseFloat(element.getComputedStyle('width'));
+
+                    switch (refpoint) {
+                        case this.CUSTOMCERT_REF_POINT_TOPCENTER:
+                            posx += nodewidth / 2;
+                            break;
+                        case this.CUSTOMCERT_REF_POINT_TOPRIGHT:
+                            posx += nodewidth;
+                            break;
+                    }
+
+                    posx = Math.round(parseFloat(posx / this.PIXELSINMM));
+                    posy = Math.round(parseFloat(posy / this.PIXELSINMM));
+
+                    posxelement.val(posx);
+                    posyelement.val(posy);
+                }
+            };
+
+            RearrangeArea.prototype._getElementHTML = function(elementid) {
+                // Get the variables we need.
+                var templateid = this._node.attr('data-templateid');
+
+                // Call the web service to get the updated element.
+                var promises = ajax.call([{
+                    methodname: 'mod_customcert_get_element_html',
+                    args: {
+                        templateid: templateid,
+                        elementid: elementid
+                    }
+                }]);
+
+                // Return the promise.
+                return promises[0];
+            };
+
+            RearrangeArea.prototype._saveElement = function(elementid) {
+                // Get the variables we need.
+                var templateid = this._node.attr('data-templateid');
+                var inputs = $('#editelementform').serializeArray();
+
+                // Call the web service to save the element.
+                var promises = ajax.call([{
+                    methodname: 'mod_customcert_save_element',
+                    args: {
+                        templateid: templateid,
+                        elementid: elementid,
+                        values: inputs
+                    }
+                }]);
+
+                // Return the promise.
+                return promises[0];
+            };
+
+            return {
+                init: function(selector) {
+                    new RearrangeArea(selector);
+                }
+            };
+        }
+    );

backup/moodle2/backup_customcert_activity_task.class.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -17,23 +17,23 @@
 /**
  * This file contains the backup tasks that provides all the settings and steps to perform a backup of the activity.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
 defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
 
-require_once($CFG->dirroot . '/mod/htmlcert/backup/moodle2/backup_htmlcert_stepslib.php');
+require_once($CFG->dirroot . '/mod/customcert/backup/moodle2/backup_customcert_stepslib.php');
 
 /**
  * Handles creating tasks to peform in order to create the backup.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-class backup_htmlcert_activity_task extends backup_activity_task {
+class backup_customcert_activity_task extends backup_activity_task {
 
     /**
      * Define particular settings this activity can have.
@@ -46,8 +46,8 @@ class backup_htmlcert_activity_task extends backup_activity_task {
      * Define particular steps this activity can have.
      */
     protected function define_my_steps() {
-        // The htmlcert only has one structure step.
+        // The customcert only has one structure step.
-        $this->add_step(new backup_htmlcert_activity_structure_step('htmlcert_structure', 'htmlcert.xml'));
+        $this->add_step(new backup_customcert_activity_structure_step('customcert_structure', 'customcert.xml'));
     }
 
     /**
@@ -56,18 +56,18 @@ class backup_htmlcert_activity_task extends backup_activity_task {
      * @param string $content
      * @return mixed|string
      */
-    public static function encode_content_links($content) {
+    static public function encode_content_links($content) {
         global $CFG;
 
         $base = preg_quote($CFG->wwwroot, "/");
 
-        // Link to the list of htmlcerts.
+        // Link to the list of customcerts.
-        $search = "/(".$base."\/mod\/htmlcert\/index.php\?id\=)([0-9]+)/";
+        $search = "/(".$base."\/mod\/customcert\/index.php\?id\=)([0-9]+)/";
-        $content = preg_replace($search, '$@HTMLCERTINDEX*$2@$', $content);
+        $content = preg_replace($search, '$@CUSTOMCERTINDEX*$2@$', $content);
 
-        // Link to htmlcert view by moduleid.
+        // Link to customcert view by moduleid.
-        $search = "/(".$base."\/mod\/htmlcert\/view.php\?id\=)([0-9]+)/";
+        $search = "/(".$base."\/mod\/customcert\/view.php\?id\=)([0-9]+)/";
-        $content = preg_replace($search, '$@HTMLCERTVIEWBYID*$2@$', $content);
+        $content = preg_replace($search, '$@CUSTOMCERTVIEWBYID*$2@$', $content);
 
         return $content;
     }

backup/moodle2/backup_customcert_stepslib.php

@@ -0,0 +1,104 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Define all the backup steps that will be used by the backup_customcert_activity_task.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+/**
+ * Define the complete customcert structure for backup, with file and id annotations.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class backup_customcert_activity_structure_step extends backup_activity_structure_step {
+
+    /**
+     * Define the structure of the backup file.
+     *
+     * @return backup_nested_element
+     */
+    protected function define_structure() {
+
+        // The instance.
+        $customcert = new backup_nested_element('customcert', array('id'), array(
+            'templateid', 'name', 'intro', 'introformat', 'requiredtime', 'verifyany', 'emailstudents',
+            'emailteachers', 'emailothers', 'protection', 'timecreated', 'timemodified'));
+
+        // The template.
+        $template = new backup_nested_element('template', array('id'), array(
+            'name', 'contextid', 'timecreated', 'timemodified'));
+
+        // The pages.
+        $pages = new backup_nested_element('pages');
+        $page = new backup_nested_element('page', array('id'), array(
+            'templateid', 'width', 'height', 'leftmargin', 'rightmargin',
+            'sequence', 'timecreated', 'timemodified'));
+
+        // The elements.
+        $element = new backup_nested_element('element', array('id'), array(
+            'pageid', 'name', 'element', 'data', 'font', 'fontsize',
+            'colour', 'posx', 'posy', 'width', 'refpoint', 'sequence',
+            'timecreated', 'timemodified'));
+
+        // The issues.
+        $issues = new backup_nested_element('issues');
+        $issue = new backup_nested_element('issue', array('id'), array(
+            'customcertid', 'userid', 'timecreated', 'emailed', 'code'));
+
+        // Build the tree.
+        $customcert->add_child($issues);
+        $issues->add_child($issue);
+        $customcert->add_child($template);
+        $template->add_child($pages);
+        $pages->add_child($page);
+        $page->add_child($element);
+
+        // Define sources.
+        $customcert->set_source_table('customcert', array('id' => backup::VAR_ACTIVITYID));
+
+        // Define template source.
+        $template->set_source_table('customcert_templates', array('contextid' => backup::VAR_CONTEXTID));
+
+        // Define page source.
+        $page->set_source_table('customcert_pages', array('templateid' => backup::VAR_PARENTID));
+
+        // Define element source, each element belongs to a page.
+        $element->set_source_table('customcert_elements', array('pageid' => backup::VAR_PARENTID));
+
+        // If we are including user info then save the issues.
+        if ($this->get_setting_value('userinfo')) {
+            $issue->set_source_table('customcert_issues', array('customcertid' => backup::VAR_ACTIVITYID));
+        }
+
+        // Annotate the user id's where required.
+        $issue->annotate_ids('user', 'userid');
+
+        // Define file annotations.
+        $customcert->annotate_files('mod_customcert', 'intro', null);
+        $customcert->annotate_files('mod_customcert', 'image', null, context_course::instance($this->get_courseid())->id);
+
+        // Return the root element (customcert), wrapped into standard activity structure.
+        return $this->prepare_activity_structure($customcert);
+    }
+}

backup/moodle2/backup_htmlcert_stepslib.php

@@ -1,83 +0,0 @@
-<?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
-//
-// Moodle is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Moodle is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
-
-/**
- * Define all the backup steps that will be used by the backup_htmlcert_activity_task.
- *
- * @package    mod_htmlcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-
-defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
-
-/**
- * Define the complete htmlcert structure for backup, with file and id annotations.
- *
- * @package    mod_htmlcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-class backup_htmlcert_activity_structure_step extends backup_activity_structure_step {
-
-    /**
-     * Define the structure of the backup file.
-     *
-     * @return backup_nested_element
-     */
-    protected function define_structure() {
-
-        // The instance.
-        $htmlcert = new backup_nested_element('htmlcert', array('id'), array(
-            'templateid', 'name', 'intro', 'introformat', 'requiredtime', 'verifyany', 'emailstudents',
-            'emailteachers', 'emailothers', 'protection', 'timecreated', 'timemodified'));
-
-        // The template.
-        $template = new backup_nested_element('template', array('id'), array(
-            'name', 'html', 'contextid', 'timecreated', 'timemodified'));
-
-        // The issues.
-        $issues = new backup_nested_element('issues');
-        $issue = new backup_nested_element('issue', array('id'), array(
-            'htmlcertid', 'userid', 'timecreated', 'emailed', 'code'));
-
-        // Build the tree.
-        $htmlcert->add_child($issues);
-        $issues->add_child($issue);
-        $htmlcert->add_child($template);
-
-        // Define sources.
-        $htmlcert->set_source_table('htmlcert', array('id' => backup::VAR_ACTIVITYID));
-
-        // Define template source.
-        $template->set_source_table('htmlcert_templates', array('contextid' => backup::VAR_CONTEXTID));
-
-        // If we are including user info then save the issues.
-        if ($this->get_setting_value('userinfo')) {
-            $issue->set_source_table('htmlcert_issues', array('htmlcertid' => backup::VAR_ACTIVITYID));
-        }
-
-        // Annotate the user id's where required.
-        $issue->annotate_ids('user', 'userid');
-
-        // Define file annotations.
-        $htmlcert->annotate_files('mod_htmlcert', 'intro', null);
-        $htmlcert->annotate_files('mod_htmlcert', 'image', null, context_course::instance($this->get_courseid())->id);
-
-        // Return the root element (htmlcert), wrapped into standard activity structure.
-        return $this->prepare_activity_structure($htmlcert);
-    }
-}

backup/moodle2/restore_customcert_activity_task.class.php

@@ -0,0 +1,121 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Define all the restore steps that will be used by the restore_customcert_activity_task.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+require_once($CFG->dirroot . '/mod/customcert/backup/moodle2/restore_customcert_stepslib.php');
+
+/**
+ * The class definition for assigning tasks that provide the settings and steps to perform a restore of the activity.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class restore_customcert_activity_task extends restore_activity_task {
+
+    /**
+     * Define  particular settings this activity can have.
+     */
+    protected function define_my_settings() {
+        // No particular settings for this activity.
+    }
+
+    /**
+     * Define particular steps this activity can have.
+     */
+    protected function define_my_steps() {
+        // The customcert only has one structure step.
+        $this->add_step(new restore_customcert_activity_structure_step('customcert_structure', 'customcert.xml'));
+    }
+
+    /**
+     * Define the contents in the activity that must be processed by the link decoder.
+     */
+    static public function define_decode_contents() {
+        $contents = array();
+
+        $contents[] = new restore_decode_content('customcert', array('intro'), 'customcert');
+
+        return $contents;
+    }
+
+    /**
+     * Define the decoding rules for links belonging to the activity to be executed by the link decoder.
+     */
+    static public function define_decode_rules() {
+        $rules = array();
+
+        $rules[] = new restore_decode_rule('CUSTOMCERTVIEWBYID', '/mod/customcert/view.php?id=$1', 'course_module');
+        $rules[] = new restore_decode_rule('CUSTOMCERTINDEX', '/mod/customcert/index.php?id=$1', 'course');
+
+        return $rules;
+
+    }
+
+    /**
+     * Define the restore log rules that will be applied by the {@link restore_logs_processor} when restoring
+     * customcert logs. It must return one array of {@link restore_log_rule} objects.
+     *
+     * @return array the restore log rules
+     */
+    static public function define_restore_log_rules() {
+        $rules = array();
+
+        $rules[] = new restore_log_rule('customcert', 'add', 'view.php?id={course_module}', '{customcert}');
+        $rules[] = new restore_log_rule('customcert', 'update', 'view.php?id={course_module}', '{customcert}');
+        $rules[] = new restore_log_rule('customcert', 'view', 'view.php?id={course_module}', '{customcert}');
+        $rules[] = new restore_log_rule('customcert', 'received', 'view.php?id={course_module}', '{customcert}');
+        $rules[] = new restore_log_rule('customcert', 'view report', 'view.php?id={course_module}', '{customcert}');
+
+        return $rules;
+    }
+
+    /**
+     * This function is called after all the activities in the backup have been restored. This allows us to get
+     * the new course module ids, as they may have been restored after the customcert module, meaning no id
+     * was available at the time.
+     */
+    public function after_restore() {
+        global $DB;
+
+        // Get the customcert elements.
+        $sql = "SELECT e.*
+                  FROM {customcert_elements} e
+            INNER JOIN {customcert_pages} p
+                    ON e.pageid = p.id
+            INNER JOIN {customcert} c
+                    ON p.templateid = c.templateid
+                 WHERE c.id = :customcertid";
+        if ($elements = $DB->get_records_sql($sql, array('customcertid' => $this->get_activityid()))) {
+            // Go through the elements for the certificate.
+            foreach ($elements as $e) {
+                // Get an instance of the element class.
+                if ($e = \mod_customcert\element_factory::get_element_instance($e)) {
+                    $e->after_restore($this);
+                }
+            }
+        }
+    }
+}

backup/moodle2/restore_customcert_stepslib.php

@@ -0,0 +1,179 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Define all the restore steps that will be used by the restore_customcert_activity_task.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+/**
+ * Define the complete customcert structure for restore, with file and id annotations.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class restore_customcert_activity_structure_step extends restore_activity_structure_step {
+
+    /**
+     * Define the different items to restore.
+     *
+     * @return array the restore paths
+     */
+    protected function define_structure() {
+        // The array used to store the path to the items we want to restore.
+        $paths = array();
+
+        // The customcert instance.
+        $paths[] = new restore_path_element('customcert', '/activity/customcert');
+
+        // The templates.
+        $paths[] = new restore_path_element('customcert_template', '/activity/customcert/template');
+
+        // The pages.
+        $paths[] = new restore_path_element('customcert_page', '/activity/customcert/template/pages/page');
+
+        // The elements.
+        $paths[] = new restore_path_element('customcert_element', '/activity/customcert/template/pages/page/element');
+
+        // Check if we want the issues as well.
+        if ($this->get_setting_value('userinfo')) {
+            $paths[] = new restore_path_element('customcert_issue', '/activity/customcert/issues/issue');
+        }
+
+        // Return the paths wrapped into standard activity structure.
+        return $this->prepare_activity_structure($paths);
+    }
+
+    /**
+     * Handles restoring the customcert activity.
+     *
+     * @param stdClass $data the customcert data
+     */
+    protected function process_customcert($data) {
+        global $DB;
+
+        $data = (object) $data;
+        $data->course = $this->get_courseid();
+        $data->timecreated = $this->apply_date_offset($data->timecreated);
+        $data->timemodified = $this->apply_date_offset($data->timemodified);
+
+        // Insert the customcert record.
+        $newitemid = $DB->insert_record('customcert', $data);
+
+        // Immediately after inserting record call this.
+        $this->apply_activity_instance($newitemid);
+    }
+
+    /**
+     * Handles restoring a customcert page.
+     *
+     * @param stdClass $data the customcert data
+     */
+    protected function process_customcert_template($data) {
+        global $DB;
+
+        $data = (object) $data;
+        $oldid = $data->id;
+
+        $data->contextid = $this->task->get_contextid();
+        $data->timecreated = $this->apply_date_offset($data->timecreated);
+        $data->timemodified = $this->apply_date_offset($data->timemodified);
+
+        $newitemid = $DB->insert_record('customcert_templates', $data);
+        $this->set_mapping('customcert_template', $oldid, $newitemid);
+
+        // Update the template id for the customcert.
+        $customcert = new stdClass();
+        $customcert->id = $this->get_new_parentid('customcert');
+        $customcert->templateid = $newitemid;
+        $DB->update_record('customcert', $customcert);
+    }
+
+    /**
+     * Handles restoring a customcert template.
+     *
+     * @param stdClass $data the customcert data
+     */
+    protected function process_customcert_page($data) {
+        global $DB;
+
+        $data = (object) $data;
+        $oldid = $data->id;
+
+        $data->templateid = $this->get_new_parentid('customcert_template');
+        $data->timecreated = $this->apply_date_offset($data->timecreated);
+        $data->timemodified = $this->apply_date_offset($data->timemodified);
+
+        $newitemid = $DB->insert_record('customcert_pages', $data);
+        $this->set_mapping('customcert_page', $oldid, $newitemid);
+    }
+
+    /**
+     * Handles restoring a customcert element.
+     *
+     * @param stdclass $data the customcert data
+     */
+    protected function process_customcert_element($data) {
+        global $DB;
+
+        $data = (object) $data;
+        $oldid = $data->id;
+
+        $data->pageid = $this->get_new_parentid('customcert_page');
+        $data->timecreated = $this->apply_date_offset($data->timecreated);
+        $data->timemodified = $this->apply_date_offset($data->timemodified);
+
+        $newitemid = $DB->insert_record('customcert_elements', $data);
+        $this->set_mapping('customcert_element', $oldid, $newitemid);
+    }
+
+    /**
+     * Handles restoring a customcert issue.
+     *
+     * @param stdClass $data the customcert data
+     */
+    protected function process_customcert_issue($data) {
+        global $DB;
+
+        $data = (object) $data;
+        $oldid = $data->id;
+
+        $data->customcertid = $this->get_new_parentid('customcert');
+        $data->timecreated = $this->apply_date_offset($data->timecreated);
+
+        $newitemid = $DB->insert_record('customcert_issues', $data);
+        $this->set_mapping('customcert_issue', $oldid, $newitemid);
+    }
+
+    /**
+     * Called immediately after all the other restore functions.
+     */
+    protected function after_execute() {
+        parent::after_execute();
+
+        // Add the files.
+        $this->add_related_files('mod_customcert', 'intro', null);
+
+        // Note - we can't use get_old_contextid() as it refers to the module context.
+        $this->add_related_files('mod_customcert', 'image', null, $this->get_task()->get_info()->original_course_contextid);
+    }
+}

backup/moodle2/restore_htmlcert_activity_task.class.php

@@ -1,103 +0,0 @@
-<?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
-//
-// Moodle is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Moodle is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
-
-/**
- * Define all the restore steps that will be used by the restore_htmlcert_activity_task.
- *
- * @package    mod_htmlcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-
-defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
-
-require_once($CFG->dirroot . '/mod/htmlcert/backup/moodle2/restore_htmlcert_stepslib.php');
-
-/**
- * The class definition for assigning tasks that provide the settings and steps to perform a restore of the activity.
- *
- * @package    mod_htmlcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-class restore_htmlcert_activity_task extends restore_activity_task {
-
-    /**
-     * Define  particular settings this activity can have.
-     */
-    protected function define_my_settings() {
-        // No particular settings for this activity.
-    }
-
-    /**
-     * Define particular steps this activity can have.
-     */
-    protected function define_my_steps() {
-        // The htmlcert only has one structure step.
-        $this->add_step(new restore_htmlcert_activity_structure_step('htmlcert_structure', 'htmlcert.xml'));
-    }
-
-    /**
-     * Define the contents in the activity that must be processed by the link decoder.
-     */
-    public static function define_decode_contents() {
-        $contents = array();
-
-        $contents[] = new restore_decode_content('htmlcert', array('intro'), 'htmlcert');
-
-        return $contents;
-    }
-
-    /**
-     * Define the decoding rules for links belonging to the activity to be executed by the link decoder.
-     */
-    public static function define_decode_rules() {
-        $rules = array();
-
-        $rules[] = new restore_decode_rule('HTMLCERTVIEWBYID', '/mod/htmlcert/view.php?id=$1', 'course_module');
-        $rules[] = new restore_decode_rule('HTMLCERTINDEX', '/mod/htmlcert/index.php?id=$1', 'course');
-
-        return $rules;
-
-    }
-
-    /**
-     * Define the restore log rules that will be applied by the {@see restore_logs_processor} when restoring
-     * htmlcert logs. It must return one array of {@see restore_log_rule} objects.
-     *
-     * @return array the restore log rules
-     */
-    public static function define_restore_log_rules() {
-        $rules = array();
-
-        $rules[] = new restore_log_rule('htmlcert', 'add', 'view.php?id={course_module}', '{htmlcert}');
-        $rules[] = new restore_log_rule('htmlcert', 'update', 'view.php?id={course_module}', '{htmlcert}');
-        $rules[] = new restore_log_rule('htmlcert', 'view', 'view.php?id={course_module}', '{htmlcert}');
-        $rules[] = new restore_log_rule('htmlcert', 'received', 'view.php?id={course_module}', '{htmlcert}');
-        $rules[] = new restore_log_rule('htmlcert', 'view report', 'view.php?id={course_module}', '{htmlcert}');
-
-        return $rules;
-    }
-
-    /**
-     * This function is called after all the activities in the backup have been restored. This allows us to get
-     * the new course module ids, as they may have been restored after the htmlcert module, meaning no id
-     * was available at the time.
-     */
-    public function after_restore() {
-        global $DB;
-    }
-}

backup/moodle2/restore_htmlcert_stepslib.php

@@ -1,136 +0,0 @@
-<?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
-//
-// Moodle is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Moodle is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
-
-/**
- * Define all the restore steps that will be used by the restore_htmlcert_activity_task.
- *
- * @package    mod_htmlcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-
-defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
-
-/**
- * Define the complete htmlcert structure for restore, with file and id annotations.
- *
- * @package    mod_htmlcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-class restore_htmlcert_activity_structure_step extends restore_activity_structure_step {
-
-    /**
-     * Define the different items to restore.
-     *
-     * @return array the restore paths
-     */
-    protected function define_structure() {
-        // The array used to store the path to the items we want to restore.
-        $paths = array();
-
-        // The htmlcert instance.
-        $paths[] = new restore_path_element('htmlcert', '/activity/htmlcert');
-
-        // The templates.
-        $paths[] = new restore_path_element('htmlcert_template', '/activity/htmlcert/template');
-
-        // Check if we want the issues as well.
-        if ($this->get_setting_value('userinfo')) {
-            $paths[] = new restore_path_element('htmlcert_issue', '/activity/htmlcert/issues/issue');
-        }
-
-        // Return the paths wrapped into standard activity structure.
-        return $this->prepare_activity_structure($paths);
-    }
-
-    /**
-     * Handles restoring the htmlcert activity.
-     *
-     * @param stdClass $data the htmlcert data
-     */
-    protected function process_htmlcert($data) {
-        global $DB;
-
-        $data = (object) $data;
-        $data->course = $this->get_courseid();
-        $data->timecreated = $this->apply_date_offset($data->timecreated);
-        $data->timemodified = $this->apply_date_offset($data->timemodified);
-
-        // Insert the htmlcert record.
-        $newitemid = $DB->insert_record('htmlcert', $data);
-
-        // Immediately after inserting record call this.
-        $this->apply_activity_instance($newitemid);
-    }
-
-    /**
-     * Handles restoring a htmlcert templage.
-     *
-     * @param stdClass $data the htmlcert data
-     */
-    protected function process_htmlcert_template($data) {
-        global $DB;
-
-        $data = (object) $data;
-        $oldid = $data->id;
-
-        $data->contextid = $this->task->get_contextid();
-        $data->timecreated = $this->apply_date_offset($data->timecreated);
-        $data->timemodified = $this->apply_date_offset($data->timemodified);
-
-        $newitemid = $DB->insert_record('htmlcert_templates', $data);
-        $this->set_mapping('htmlcert_template', $oldid, $newitemid);
-
-        // Update the template id for the htmlcert.
-        $htmlcert = new stdClass();
-        $htmlcert->id = $this->get_new_parentid('htmlcert');
-        $htmlcert->templateid = $newitemid;
-        $DB->update_record('htmlcert', $htmlcert);
-    }
-
-    /**
-     * Handles restoring a htmlcert issue.
-     *
-     * @param stdClass $data the htmlcert data
-     */
-    protected function process_htmlcert_issue($data) {
-        global $DB;
-
-        $data = (object) $data;
-        $oldid = $data->id;
-
-        $data->htmlcertid = $this->get_new_parentid('htmlcert');
-        $data->timecreated = $this->apply_date_offset($data->timecreated);
-        $data->userid = $this->get_mappingid('user', $data->userid);
-
-        $newitemid = $DB->insert_record('htmlcert_issues', $data);
-        $this->set_mapping('htmlcert_issue', $oldid, $newitemid);
-    }
-
-    /**
-     * Called immediately after all the other restore functions.
-     */
-    protected function after_execute() {
-        parent::after_execute();
-
-        // Add the files.
-        $this->add_related_files('mod_htmlcert', 'intro', null);
-
-        // Note - we can't use get_old_contextid() as it refers to the module context.
-        $this->add_related_files('mod_htmlcert', 'image', null, $this->get_task()->get_info()->original_course_contextid);
-    }
-}

classes/admin_setting_link.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -17,12 +17,12 @@
 /**
  * Creates an upload form on the settings page.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert;
+namespace mod_customcert;
 
 defined('MOODLE_INTERNAL') || die();
 
@@ -31,8 +31,8 @@ require_once($CFG->libdir.'/adminlib.php');
 /**
  * Class extends admin setting class to allow/process an uploaded file
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class admin_setting_link extends \admin_setting_configtext {

classes/certificate.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,14 +15,14 @@
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * Provides functionality needed by htmlcert activities.
+ * Provides functionality needed by customcert activities.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert;
+namespace mod_customcert;
 
 defined('MOODLE_INTERNAL') || die();
 
@@ -31,22 +31,12 @@ defined('MOODLE_INTERNAL') || die();
  *
  * Helper functionality for certificates.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class certificate {
 
-    /**
-     * Send the file inline to the browser.
-     */
-    const DELIVERY_OPTION_INLINE = 'I';
-
-    /**
-     * Send to the browser and force a file download
-     */
-    const DELIVERY_OPTION_DOWNLOAD = 'D';
-
     /**
      * @var string the print protection variable
      */
@@ -64,12 +54,12 @@ class certificate {
 
     /**
      * @var int the number of issues that will be displayed on each page in the report
-     *      If you want to display all htmlcerts on a page set this to 0.
+     *      If you want to display all customcerts on a page set this to 0.
      */
-    const HTMLCERT_PER_PAGE = '50';
+    const CUSTOMCERT_PER_PAGE = '50';
 
     /**
-     * Handles setting the protection field for the htmlcert
+     * Handles setting the protection field for the customcert
      *
      * @param \stdClass $data
      * @return string the value to insert into the protection field
@@ -92,7 +82,7 @@ class certificate {
     }
 
     /**
-     * Handles uploading an image for the htmlcert module.
+     * Handles uploading an image for the customcert module.
      *
      * @param int $draftitemid the draft area containing the files
      * @param int $contextid the context we are storing this image in
@@ -103,7 +93,69 @@ class certificate {
 
         // Save the file if it exists that is currently in the draft area.
         require_once($CFG->dirroot . '/lib/filelib.php');
-        file_save_draft_area_files($draftitemid, $contextid, 'mod_htmlcert', $filearea, 0);
+        file_save_draft_area_files($draftitemid, $contextid, 'mod_customcert', $filearea, 0);
+    }
+
+    /**
+     * Return the list of possible fonts to use.
+     */
+    public static function get_fonts() {
+        global $CFG;
+
+        require_once($CFG->libdir . '/pdflib.php');
+
+        $arrfonts = [];
+        $pdf = new \pdf();
+        $fontfamilies = $pdf->get_font_families();
+        foreach ($fontfamilies as $fontfamily => $fontstyles) {
+            foreach ($fontstyles as $fontstyle) {
+                $fontstyle = strtolower($fontstyle);
+                if ($fontstyle == 'r') {
+                    $filenamewoextension = $fontfamily;
+                } else {
+                    $filenamewoextension = $fontfamily . $fontstyle;
+                }
+                $fullpath = \TCPDF_FONTS::_getfontpath() . $filenamewoextension;
+                // Set the name of the font to null, the include next should then set this
+                // value, if it is not set then the file does not include the necessary data.
+                $name = null;
+                // Some files include a display name, the include next should then set this
+                // value if it is present, if not then $name is used to create the display name.
+                $displayname = null;
+                // Some of the TCPDF files include files that are not present, so we have to
+                // suppress warnings, this is the TCPDF libraries fault, grrr.
+                @include($fullpath . '.php');
+                // If no $name variable in file, skip it.
+                if (is_null($name)) {
+                    continue;
+                }
+                // Check if there is no display name to use.
+                if (is_null($displayname)) {
+                    // Format the font name, so "FontName-Style" becomes "Font Name - Style".
+                    $displayname = preg_replace("/([a-z])([A-Z])/", "$1 $2", $name);
+                    $displayname = preg_replace("/([a-zA-Z])-([a-zA-Z])/", "$1 - $2", $displayname);
+                }
+
+                $arrfonts[$filenamewoextension] = $displayname;
+            }
+        }
+        ksort($arrfonts);
+
+        return $arrfonts;
+    }
+
+    /**
+     * Return the list of possible font sizes to use.
+     */
+    public static function get_font_sizes() {
+        // Array to store the sizes.
+        $sizes = array();
+
+        for ($i = 1; $i <= 200; $i++) {
+            $sizes[$i] = $i;
+        }
+
+        return $sizes;
     }
 
     /**
@@ -113,7 +165,7 @@ class certificate {
      * @param int $userid
      * @return int the total time spent in seconds
      */
-    public static function get_course_time(int $courseid, int $userid = 0): int {
+    public static function get_course_time($courseid, $userid = 0) {
         global $CFG, $DB, $USER;
 
         if (empty($userid)) {
@@ -165,7 +217,7 @@ class certificate {
                     $totaltime = 0;
                 }
                 $delay = $log->$timefield - $lasthit;
-                if ($delay > $CFG->sessiontimeout) {
+                if ($delay > ($CFG->sessiontimeout * 60)) {
                     // The difference between the last log and the current log is more than
                     // the timeout Register session value so that we have found a session!
                     $login = $log->$timefield;
@@ -183,9 +235,9 @@ class certificate {
     }
 
     /**
-     * Returns a list of issued htmlcerts.
+     * Returns a list of issued customcerts.
      *
-     * @param int $htmlcertid
+     * @param int $customcertid
      * @param bool $groupmode are we in group mode
      * @param \stdClass $cm the course module
      * @param int $limitfrom
@@ -193,7 +245,7 @@ class certificate {
      * @param string $sort
      * @return array the users
      */
-    public static function get_issues($htmlcertid, $groupmode, $cm, $limitfrom, $limitnum, $sort = '') {
+    public static function get_issues($customcertid, $groupmode, $cm, $limitfrom, $limitnum, $sort = '') {
         global $DB;
 
         // Get the conditional SQL.
@@ -204,26 +256,18 @@ class certificate {
             return array();
         }
 
-        // Add the conditional SQL and the htmlcertid to form all used parameters.
+        // Add the conditional SQL and the customcertid to form all used parameters.
-        $allparams = $conditionsparams + array('htmlcertid' => $htmlcertid);
+        $allparams = $conditionsparams + array('customcertid' => $customcertid);
 
         // Return the issues.
-        $context = \context_module::instance($cm->id);
+        $extrafields = get_extra_user_fields(\context_module::instance($cm->id));
-        $extrafields = \core_user\fields::for_identity($context)->get_required_fields();
+        $ufields = \user_picture::fields('u', $extrafields);
-
+        $sql = "SELECT $ufields, ci.id as issueid, ci.code, ci.timecreated
-        $ufields = \core_user\fields::for_userpic()->including(...$extrafields);
-        [
-            'selects' => $userfieldsselects,
-            'joins' => $userfieldsjoin,
-            'params' => $userfieldsparams
-        ] = (array) $ufields->get_sql('u', true);
-        $allparams = array_merge($allparams, $userfieldsparams);
-        $sql = "SELECT ci.id as issueid, ci.code, ci.timecreated $userfieldsselects
                   FROM {user} u
-            INNER JOIN {htmlcert_issues} ci ON u.id = ci.userid
+            INNER JOIN {customcert_issues} ci
-                       $userfieldsjoin
+                    ON u.id = ci.userid
                  WHERE u.deleted = 0
-                   AND ci.htmlcertid = :htmlcertid
+                   AND ci.customcertid = :customcertid
                        $conditionssql";
         if ($sort) {
             $sql .= "ORDER BY " . $sort;
@@ -235,14 +279,14 @@ class certificate {
     }
 
     /**
-     * Returns the total number of issues for a given htmlcert.
+     * Returns the total number of issues for a given customcert.
      *
-     * @param int $htmlcertid
+     * @param int $customcertid
      * @param \stdClass $cm the course module
      * @param bool $groupmode the group mode
      * @return int the number of issues
      */
-    public static function get_number_of_issues($htmlcertid, $cm, $groupmode) {
+    public static function get_number_of_issues($customcertid, $cm, $groupmode) {
         global $DB;
 
         // Get the conditional SQL.
@@ -253,16 +297,16 @@ class certificate {
             return 0;
         }
 
-        // Add the conditional SQL and the htmlcertid to form all used parameters.
+        // Add the conditional SQL and the customcertid to form all used parameters.
-        $allparams = $conditionsparams + array('htmlcertid' => $htmlcertid);
+        $allparams = $conditionsparams + array('customcertid' => $customcertid);
 
         // Return the number of issues.
         $sql = "SELECT COUNT(u.id) as count
                   FROM {user} u
-            INNER JOIN {htmlcert_issues} ci
+            INNER JOIN {customcert_issues} ci
                     ON u.id = ci.userid
                  WHERE u.deleted = 0
-                   AND ci.htmlcertid = :htmlcertid
+                   AND ci.customcertid = :customcertid
                        $conditionssql";
         return $DB->count_records_sql($sql, $allparams);
     }
@@ -277,13 +321,13 @@ class certificate {
     public static function get_conditional_issues_sql($cm, $groupmode) {
         global $DB, $USER;
 
-        // Get all users that can manage this htmlcert to exclude them from the report.
+        // Get all users that can manage this customcert to exclude them from the report.
         $context = \context_module::instance($cm->id);
         $conditionssql = '';
         $conditionsparams = array();
 
         // Get all users that can manage this certificate to exclude them from the report.
-        $certmanagers = array_keys(get_users_by_capability($context, 'mod/htmlcert:manage', 'u.id'));
+        $certmanagers = array_keys(get_users_by_capability($context, 'mod/customcert:manage', 'u.id'));
         $certmanagers = array_merge($certmanagers, array_keys(get_admins()));
         list($sql, $params) = $DB->get_in_or_equal($certmanagers, SQL_PARAMS_NAMED, 'cert');
         $conditionssql .= "AND NOT u.id $sql \n";
@@ -340,9 +384,9 @@ class certificate {
         global $DB;
 
         $sql = "SELECT COUNT(*)
-                  FROM {htmlcert} c
+                  FROM {customcert} c
-            INNER JOIN {htmlcert_issues} ci
+            INNER JOIN {customcert_issues} ci
-                    ON c.id = ci.htmlcertid
+                    ON c.id = ci.customcertid
                  WHERE ci.userid = :userid";
         return $DB->count_records_sql($sql, array('userid' => $userid));
     }
@@ -364,9 +408,9 @@ class certificate {
         }
 
         $sql = "SELECT c.id, c.name, co.fullname as coursename, ci.code, ci.timecreated
-                  FROM {htmlcert} c
+                  FROM {customcert} c
-            INNER JOIN {htmlcert_issues} ci
+            INNER JOIN {customcert_issues} ci
-                    ON c.id = ci.htmlcertid
+                    ON c.id = ci.customcertid
             INNER JOIN {course} co
                     ON c.course = co.id
                  WHERE ci.userid = :userid
@@ -386,13 +430,13 @@ class certificate {
 
         $issue = new \stdClass();
         $issue->userid = $userid;
-        $issue->htmlcertid = $certificateid;
+        $issue->customcertid = $certificateid;
         $issue->code = self::generate_code();
         $issue->emailed = 0;
         $issue->timecreated = time();
 
         // Insert the record into the database.
-        return $DB->insert_record('htmlcert_issues', $issue);
+        return $DB->insert_record('customcert_issues', $issue);
     }
 
     /**
@@ -406,7 +450,7 @@ class certificate {
         $uniquecodefound = false;
         $code = random_string(10);
         while (!$uniquecodefound) {
-            if (!$DB->record_exists('htmlcert_issues', array('code' => $code))) {
+            if (!$DB->record_exists('customcert_issues', array('code' => $code))) {
                 $uniquecodefound = true;
             } else {
                 $code = random_string(10);

classes/edit_element_form.php

@@ -0,0 +1,98 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the form for handling editing a customcert element.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_customcert;
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+require_once($CFG->dirroot . '/course/moodleform_mod.php');
+require_once($CFG->dirroot . '/mod/customcert/includes/colourpicker.php');
+
+\MoodleQuickForm::registerElementType('customcert_colourpicker',
+    $CFG->dirroot . '/mod/customcert/includes/colourpicker.php', 'MoodleQuickForm_customcert_colourpicker');
+
+/**
+ * The form for handling editing a customcert element.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class edit_element_form extends \moodleform {
+
+    /**
+     * @var \mod_customcert\element The element object.
+     */
+    protected $element;
+
+    /**
+     * Form definition.
+     */
+    public function definition() {
+        $mform =& $this->_form;
+
+        $mform->updateAttributes(array('id' => 'editelementform'));
+
+        $element = $this->_customdata['element'];
+
+        // Add the field for the name of the element, this is required for all elements.
+        $mform->addElement('text', 'name', get_string('elementname', 'customcert'), 'maxlength="255"');
+        $mform->setType('name', PARAM_TEXT);
+        $mform->setDefault('name', get_string('pluginname', 'customcertelement_' . $element->element));
+        $mform->addRule('name', get_string('required'), 'required', null, 'client');
+        $mform->addHelpButton('name', 'elementname', 'customcert');
+
+        $this->element = \mod_customcert\element_factory::get_element_instance($element);
+        $this->element->set_edit_element_form($this);
+        $this->element->render_form_elements($mform);
+
+        $this->add_action_buttons(true);
+    }
+
+    /**
+     * Fill in the current page data for this customcert.
+     */
+    public function definition_after_data() {
+        $this->element->definition_after_data($this->_form);
+    }
+
+    /**
+     * Validation.
+     *
+     * @param array $data
+     * @param array $files
+     * @return array the errors that were found
+     */
+    public function validation($data, $files) {
+        $errors = array();
+
+        if (\core_text::strlen($data['name']) > 255) {
+            $errors['name'] = get_string('nametoolong', 'customcert');
+        }
+
+        $errors += $this->element->validate_form_elements($data, $files);
+
+        return $errors;
+    }
+}

classes/edit_form.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,24 +15,28 @@
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * This file contains the form for handling the layout of the htmlcert instance.
+ * This file contains the form for handling the layout of the customcert instance.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert;
+namespace mod_customcert;
 
 defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
 
 require_once($CFG->dirroot . '/course/moodleform_mod.php');
+require_once($CFG->dirroot . '/mod/customcert/includes/colourpicker.php');
+
+\MoodleQuickForm::registerElementType('customcert_colourpicker',
+    $CFG->dirroot . '/mod/customcert/includes/colourpicker.php', 'MoodleQuickForm_customcert_colourpicker');
 
 /**
- * The form for handling the layout of the htmlcert instance.
+ * The form for handling the layout of the customcert instance.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class edit_form extends \moodleform {
@@ -42,6 +46,11 @@ class edit_form extends \moodleform {
      */
     protected $tid = null;
 
+    /**
+     * @var int The total number of pages for this cert.
+     */
+    protected $numpages = 1;
+
     /**
      * Form definition.
      */
@@ -50,26 +59,82 @@ class edit_form extends \moodleform {
 
         $mform =& $this->_form;
 
-        $mform->addElement('text', 'name', get_string('name', 'htmlcert'), 'maxlength="255"');
+        $mform->addElement('text', 'name', get_string('name', 'customcert'), 'maxlength="255"');
         $mform->setType('name', PARAM_TEXT);
         $mform->addRule('name', null, 'required');
 
-        $mform->addElement('textarea', 'html', get_string('html', 'htmlcert'));
+        // Get the number of pages for this module.
-        $mform->setType('html', PARAM_RAW);
+        if (isset($this->_customdata['tid'])) {
+            $this->tid = $this->_customdata['tid'];
+            if ($pages = $DB->get_records('customcert_pages', array('templateid' => $this->tid), 'sequence')) {
+                $this->numpages = count($pages);
+                foreach ($pages as $p) {
+                    $this->add_customcert_page_elements($p);
+                }
+            }
+        } else { // Add a new template.
+            // Create a 'fake' page to display the elements on - not yet saved in the DB.
+            $page = new \stdClass();
+            $page->id = 0;
+            $page->sequence = 1;
+            $this->add_customcert_page_elements($page);
+        }
+
+        // Link to add another page, only display it when the template has been created.
+        if (isset($this->_customdata['tid'])) {
+            $addpagelink = new \moodle_url('/mod/customcert/edit.php',
+                array(
+                    'tid' => $this->tid,
+                    'aid' => 1,
+                    'action' => 'addpage',
+                    'sesskey' => sesskey()
+                )
+            );
+            $icon = $OUTPUT->pix_icon('t/switch_plus', get_string('addcertpage', 'customcert'));
+            $addpagehtml = \html_writer::link($addpagelink, $icon . get_string('addcertpage', 'customcert'));
+            $mform->addElement('html', \html_writer::tag('div', $addpagehtml, array('class' => 'addpage')));
+        }
 
         // Add the submit buttons.
         $group = array();
         $group[] = $mform->createElement('submit', 'submitbtn', get_string('savechanges'));
-        $group[] = $mform->createElement('submit', 'previewbtn', get_string('savechangespreview', 'htmlcert'), array(), false);
+        $group[] = $mform->createElement('submit', 'previewbtn', get_string('savechangespreview', 'customcert'), array(), false);
         $mform->addElement('group', 'submitbtngroup', '', $group, '', false);
+
+        $mform->addElement('hidden', 'tid');
+        $mform->setType('tid', PARAM_INT);
+        $mform->setDefault('tid', $this->tid);
     }
 
     /**
-     * Fill in the current page data for this htmlcert.
+     * Fill in the current page data for this customcert.
      */
     public function definition_after_data() {
         global $DB;
+
         $mform = $this->_form;
+
+        // Check that we are updating a current customcert.
+        if ($this->tid) {
+            // Get the pages for this customcert.
+            if ($pages = $DB->get_records('customcert_pages', array('templateid' => $this->tid))) {
+                // Loop through the pages.
+                foreach ($pages as $p) {
+                    // Set the width.
+                    $element = $mform->getElement('pagewidth_' . $p->id);
+                    $element->setValue($p->width);
+                    // Set the height.
+                    $element = $mform->getElement('pageheight_' . $p->id);
+                    $element->setValue($p->height);
+                    // Set the left margin.
+                    $element = $mform->getElement('pageleftmargin_' . $p->id);
+                    $element->setValue($p->leftmargin);
+                    // Set the right margin.
+                    $element = $mform->getElement('pagerightmargin_' . $p->id);
+                    $element->setValue($p->rightmargin);
+                }
+            }
+        }
     }
 
     /**
@@ -83,7 +148,39 @@ class edit_form extends \moodleform {
         $errors = parent::validation($data, $files);
 
         if (\core_text::strlen($data['name']) > 255) {
-            $errors['name'] = get_string('nametoolong', 'htmlcert');
+            $errors['name'] = get_string('nametoolong', 'customcert');
+        }
+
+        // Go through the data and check any width, height or margin  values.
+        foreach ($data as $key => $value) {
+            if (strpos($key, 'pagewidth_') !== false) {
+                $page = str_replace('pagewidth_', '', $key);
+                $widthid = 'pagewidth_' . $page;
+                // Validate that the width is a valid value.
+                if ((!isset($data[$widthid])) || (!is_numeric($data[$widthid])) || ($data[$widthid] <= 0)) {
+                    $errors[$widthid] = get_string('invalidwidth', 'customcert');
+                }
+            }
+            if (strpos($key, 'pageheight_') !== false) {
+                $page = str_replace('pageheight_', '', $key);
+                $heightid = 'pageheight_' . $page;
+                // Validate that the height is a valid value.
+                if ((!isset($data[$heightid])) || (!is_numeric($data[$heightid])) || ($data[$heightid] <= 0)) {
+                    $errors[$heightid] = get_string('invalidheight', 'customcert');
+                }
+            }
+            if (strpos($key, 'pageleftmargin_') !== false) {
+                // Validate that the left margin is a valid value.
+                if (isset($data[$key]) && ($data[$key] < 0)) {
+                    $errors[$key] = get_string('invalidmargin', 'customcert');
+                }
+            }
+            if (strpos($key, 'pagerightmargin_') !== false) {
+                // Validate that the right margin is a valid value.
+                if (isset($data[$key]) && ($data[$key] < 0)) {
+                    $errors[$key] = get_string('invalidmargin', 'customcert');
+                }
+            }
         }
 
         return $errors;
@@ -92,28 +189,126 @@ class edit_form extends \moodleform {
     /**
      * Adds the page elements to the form.
      *
-     * @param \stdClass $page the htmlcert page
+     * @param \stdClass $page the customcert page
      */
-    protected function add_htmlcert_page_elements($page) {
+    protected function add_customcert_page_elements($page) {
         global $DB, $OUTPUT;
 
         // Create the form object.
         $mform =& $this->_form;
 
-        $editlink = '/mod/htmlcert/edit.php';
+        if ($this->numpages > 1) {
+            $mform->addElement('header', 'page_' . $page->id, get_string('page', 'customcert', $page->sequence));
+        }
+
+        $editlink = '/mod/customcert/edit.php';
         $editlinkparams = array('tid' => $this->tid, 'sesskey' => sesskey());
+        $editelementlink = '/mod/customcert/edit_element.php';
+        $editelementlinkparams = array('tid' => $this->tid, 'sesskey' => sesskey());
 
-        $mform->addElement('text', 'pagewidth', get_string('width', 'htmlcert'));
+        // Place the ordering arrows.
-        $mform->setType('pagewidth', PARAM_INT);
+        // Only display the move up arrow if it is not the first.
-        $mform->setDefault('pagewidth', '210');
+        if ($page->sequence > 1) {
-        $mform->addRule('pagewidth', null, 'required', null, 'client');
+            $url = new \moodle_url($editlink, $editlinkparams + array('action' => 'pmoveup', 'aid' => $page->id));
-        $mform->addHelpButton('pagewidth', 'width', 'htmlcert');
+            $mform->addElement('html', $OUTPUT->action_icon($url, new \pix_icon('t/up', get_string('moveup'))));
+        }
+        // Only display the move down arrow if it is not the last.
+        if ($page->sequence < $this->numpages) {
+            $url = new \moodle_url($editlink, $editlinkparams + array('action' => 'pmovedown', 'aid' => $page->id));
+            $mform->addElement('html', $OUTPUT->action_icon($url, new \pix_icon('t/down', get_string('movedown'))));
+        }
 
-        $mform->addElement('text', 'pageheight', get_string('height', 'htmlcert'));
+        $mform->addElement('text', 'pagewidth_' . $page->id, get_string('width', 'customcert'));
-        $mform->setType('pageheight', PARAM_INT);
+        $mform->setType('pagewidth_' . $page->id, PARAM_INT);
-        $mform->setDefault('pageheight', '297');
+        $mform->setDefault('pagewidth_' . $page->id, '210');
-        $mform->addRule('pageheight', null, 'required', null, 'client');
+        $mform->addRule('pagewidth_' . $page->id, null, 'required', null, 'client');
-        $mform->addHelpButton('pageheight', 'height', 'htmlcert');
+        $mform->addHelpButton('pagewidth_' . $page->id, 'width', 'customcert');
 
+        $mform->addElement('text', 'pageheight_' . $page->id, get_string('height', 'customcert'));
+        $mform->setType('pageheight_' . $page->id, PARAM_INT);
+        $mform->setDefault('pageheight_' . $page->id, '297');
+        $mform->addRule('pageheight_' . $page->id, null, 'required', null, 'client');
+        $mform->addHelpButton('pageheight_' . $page->id, 'height', 'customcert');
+
+        $mform->addElement('text', 'pageleftmargin_' . $page->id, get_string('leftmargin', 'customcert'));
+        $mform->setType('pageleftmargin_' . $page->id, PARAM_INT);
+        $mform->setDefault('pageleftmargin_' . $page->id, 0);
+        $mform->addHelpButton('pageleftmargin_' . $page->id, 'leftmargin', 'customcert');
+
+        $mform->addElement('text', 'pagerightmargin_' . $page->id, get_string('rightmargin', 'customcert'));
+        $mform->setType('pagerightmargin_' . $page->id, PARAM_INT);
+        $mform->setDefault('pagerightmargin_' . $page->id, 0);
+        $mform->addHelpButton('pagerightmargin_' . $page->id, 'rightmargin', 'customcert');
+
+        // Check if there are elements to add.
+        if ($elements = $DB->get_records('customcert_elements', array('pageid' => $page->id), 'sequence ASC')) {
+            // Get the total number of elements.
+            $numelements = count($elements);
+            // Create a table to display these elements.
+            $table = new \html_table();
+            $table->attributes = array('class' => 'generaltable elementstable');
+            $table->head  = array(get_string('name', 'customcert'), get_string('type', 'customcert'), '');
+            $table->align = array('left', 'left', 'left');
+            // Loop through and add the elements to the table.
+            foreach ($elements as $element) {
+                $elementname = new \core\output\inplace_editable('mod_customcert', 'elementname', $element->id,
+                    true, format_string($element->name), $element->name);
+
+                $row = new \html_table_row();
+                $row->cells[] = $OUTPUT->render($elementname);
+                $row->cells[] = $element->element;
+                // Link to edit this element.
+                $link = new \moodle_url($editelementlink, $editelementlinkparams + array('id' => $element->id,
+                    'action' => 'edit'));
+                $icons = $OUTPUT->action_icon($link, new \pix_icon('t/edit', get_string('edit')), null,
+                    array('class' => 'action-icon edit-icon'));
+                // Link to delete the element.
+                $link = new \moodle_url($editlink, $editlinkparams + array('action' => 'deleteelement',
+                    'aid' => $element->id));
+                $icons .= $OUTPUT->action_icon($link, new \pix_icon('t/delete', get_string('delete')), null,
+                    array('class' => 'action-icon delete-icon'));
+                // Now display any moving arrows if they are needed.
+                if ($numelements > 1) {
+                    // Only display the move up arrow if it is not the first.
+                    $moveicons = '';
+                    if ($element->sequence > 1) {
+                        $url = new \moodle_url($editlink, $editlinkparams + array('action' => 'emoveup',
+                            'aid' => $element->id));
+                        $moveicons .= $OUTPUT->action_icon($url, new \pix_icon('t/up', get_string('moveup')));
+                    }
+                    // Only display the move down arrow if it is not the last.
+                    if ($element->sequence < $numelements) {
+                        $url = new \moodle_url($editlink, $editlinkparams + array('action' => 'emovedown',
+                            'aid' => $element->id));
+                        $moveicons .= $OUTPUT->action_icon($url, new \pix_icon('t/down', get_string('movedown')));
+                    }
+                    $icons .= $moveicons;
+                }
+                $row->cells[] = $icons;
+                $table->data[] = $row;
+            }
+            // Create link to order the elements.
+            $link = \html_writer::link(new \moodle_url('/mod/customcert/rearrange.php', array('pid' => $page->id)),
+                get_string('rearrangeelements', 'customcert'));
+            // Add the table to the form.
+            $mform->addElement('static', 'elements_' . $page->id, get_string('elements', 'customcert'), \html_writer::table($table)
+                . \html_writer::tag( 'div', $link));
+            $mform->addHelpButton('elements_' . $page->id, 'elements', 'customcert');
+        }
+
+        $group = array();
+        $group[] = $mform->createElement('select', 'element_' . $page->id, '', element_helper::get_available_element_types());
+        $group[] = $mform->createElement('submit', 'addelement_' . $page->id, get_string('addelement', 'customcert'),
+            array(), false);
+        $mform->addElement('group', 'elementgroup', '', $group, '', false);
+
+        // Add option to delete this page if there is more than one page.
+        if ($this->numpages > 1) {
+            // Link to delete the page.
+            $deletelink = new \moodle_url($editlink, $editlinkparams + array('action' => 'deletepage', 'aid' => $page->id));
+            $icon = $OUTPUT->pix_icon('t/delete', get_string('deletecertpage', 'customcert'));
+            $deletepagehtml = \html_writer::link($deletelink, $icon . get_string('deletecertpage', 'customcert'));
+            $mform->addElement('html', \html_writer::tag('div', $deletepagehtml, array('class' => 'deletebutton')));
+        }
     }
 }

classes/element.php

@@ -0,0 +1,453 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * The base class for the customcert elements.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_customcert;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Class element
+ *
+ * All customcert element plugins are based on this class.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+abstract class element {
+
+    /**
+     * @var \stdClass $element The data for the element we are adding - do not use, kept for legacy reasons.
+     */
+    protected $element;
+
+    /**
+     * @var int The id.
+     */
+    protected $id;
+
+    /**
+     * @var int The page id.
+     */
+    protected $pageid;
+
+    /**
+     * @var string The name.
+     */
+    protected $name;
+
+    /**
+     * @var mixed The data.
+     */
+    protected $data;
+
+    /**
+     * @var string The font name.
+     */
+    protected $font;
+
+    /**
+     * @var int The font size.
+     */
+    protected $fontsize;
+
+    /**
+     * @var string The font colour.
+     */
+    protected $colour;
+
+    /**
+     * @var int The position x.
+     */
+    protected $posx;
+
+    /**
+     * @var int The position y.
+     */
+    protected $posy;
+
+    /**
+     * @var int The width.
+     */
+    protected $width;
+
+    /**
+     * @var int The refpoint.
+     */
+    protected $refpoint;
+
+    /**
+     * @var bool $showposxy Show position XY form elements?
+     */
+    protected $showposxy;
+
+    /**
+     * @var edit_element_form Element edit form instance.
+     */
+    private $editelementform;
+
+    /**
+     * Constructor.
+     *
+     * @param \stdClass $element the element data
+     */
+    public function __construct($element) {
+        $showposxy = get_config('customcert', 'showposxy');
+
+        // Keeping this for legacy reasons so we do not break third-party elements.
+        $this->element = clone($element);
+
+        $this->id = $element->id;
+        $this->pageid = $element->pageid;
+        $this->name = $element->name;
+        $this->data = $element->data;
+        $this->font = $element->font;
+        $this->fontsize = $element->fontsize;
+        $this->colour = $element->colour;
+        $this->posx = $element->posx;
+        $this->posy = $element->posy;
+        $this->width = $element->width;
+        $this->refpoint = $element->refpoint;
+        $this->showposxy = isset($showposxy) && $showposxy;
+    }
+
+    /**
+     * Returns the id.
+     *
+     * @return int
+     */
+    public function get_id() {
+        return $this->id;
+    }
+
+    /**
+     * Returns the page id.
+     *
+     * @return int
+     */
+    public function get_pageid() {
+        return $this->pageid;
+    }
+
+    /**
+     * Returns the name.
+     *
+     * @return int
+     */
+    public function get_name() {
+        return $this->name;
+    }
+
+    /**
+     * Returns the data.
+     *
+     * @return mixed
+     */
+    public function get_data() {
+        return $this->data;
+    }
+
+    /**
+     * Returns the font name.
+     *
+     * @return string
+     */
+    public function get_font() {
+        return $this->font;
+    }
+
+    /**
+     * Returns the font size.
+     *
+     * @return int
+     */
+    public function get_fontsize() {
+        return $this->fontsize;
+    }
+
+    /**
+     * Returns the font colour.
+     *
+     * @return string
+     */
+    public function get_colour() {
+        return $this->colour;
+    }
+
+    /**
+     * Returns the position x.
+     *
+     * @return int
+     */
+    public function get_posx() {
+        return $this->posx;
+    }
+
+    /**
+     * Returns the position y.
+     *
+     * @return int
+     */
+    public function get_posy() {
+        return $this->posy;
+    }
+
+    /**
+     * Returns the width.
+     *
+     * @return int
+     */
+    public function get_width() {
+        return $this->width;
+    }
+
+    /**
+     * Returns the refpoint.
+     *
+     * @return int
+     */
+    public function get_refpoint() {
+        return $this->refpoint;
+    }
+
+    /**
+     * This function renders the form elements when adding a customcert element.
+     * Can be overridden if more functionality is needed.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance.
+     */
+    public function render_form_elements($mform) {
+        // Render the common elements.
+        element_helper::render_form_element_font($mform);
+        element_helper::render_form_element_colour($mform);
+        if ($this->showposxy) {
+            element_helper::render_form_element_position($mform);
+        }
+        element_helper::render_form_element_width($mform);
+        element_helper::render_form_element_refpoint($mform);
+    }
+
+    /**
+     * Sets the data on the form when editing an element.
+     * Can be overridden if more functionality is needed.
+     *
+     * @param edit_element_form $mform the edit_form instance
+     */
+    public function definition_after_data($mform) {
+        // Loop through the properties of the element and set the values
+        // of the corresponding form element, if it exists.
+        $properties = [
+            'name' => $this->name,
+            'font' => $this->font,
+            'fontsize' => $this->fontsize,
+            'colour' => $this->colour,
+            'posx' => $this->posx,
+            'posy' => $this->posy,
+            'width' => $this->width,
+            'refpoint' => $this->refpoint
+        ];
+        foreach ($properties as $property => $value) {
+            if (!is_null($value) && $mform->elementExists($property)) {
+                $element = $mform->getElement($property);
+                $element->setValue($value);
+            }
+        }
+    }
+
+    /**
+     * Performs validation on the element values.
+     * Can be overridden if more functionality is needed.
+     *
+     * @param array $data the submitted data
+     * @param array $files the submitted files
+     * @return array the validation errors
+     */
+    public function validate_form_elements($data, $files) {
+        // Array to return the errors.
+        $errors = array();
+
+        // Common validation methods.
+        $errors += element_helper::validate_form_element_colour($data);
+        if ($this->showposxy) {
+            $errors += element_helper::validate_form_element_position($data);
+        }
+        $errors += element_helper::validate_form_element_width($data);
+
+        return $errors;
+    }
+
+    /**
+     * Handles saving the form elements created by this element.
+     * Can be overridden if more functionality is needed.
+     *
+     * @param \stdClass $data the form data
+     * @return bool true of success, false otherwise.
+     */
+    public function save_form_elements($data) {
+        global $DB;
+
+        // Get the data from the form.
+        $element = new \stdClass();
+        $element->name = $data->name;
+        $element->data = $this->save_unique_data($data);
+        $element->font = (isset($data->font)) ? $data->font : null;
+        $element->fontsize = (isset($data->fontsize)) ? $data->fontsize : null;
+        $element->colour = (isset($data->colour)) ? $data->colour : null;
+        if ($this->showposxy) {
+            $element->posx = (isset($data->posx)) ? $data->posx : null;
+            $element->posy = (isset($data->posy)) ? $data->posy : null;
+        }
+        $element->width = (isset($data->width)) ? $data->width : null;
+        $element->refpoint = (isset($data->refpoint)) ? $data->refpoint : null;
+        $element->timemodified = time();
+
+        // Check if we are updating, or inserting a new element.
+        if (!empty($this->id)) { // Must be updating a record in the database.
+            $element->id = $this->id;
+            return $DB->update_record('customcert_elements', $element);
+        } else { // Must be adding a new one.
+            $element->element = $data->element;
+            $element->pageid = $data->pageid;
+            $element->sequence = \mod_customcert\element_helper::get_element_sequence($element->pageid);
+            $element->timecreated = time();
+            return $DB->insert_record('customcert_elements', $element, false);
+        }
+    }
+
+    /**
+     * This will handle how form data will be saved into the data column in the
+     * customcert_elements table.
+     * Can be overridden if more functionality is needed.
+     *
+     * @param \stdClass $data the form data
+     * @return string the unique data to save
+     */
+    public function save_unique_data($data) {
+        return '';
+    }
+
+    /**
+     * This handles copying data from another element of the same type.
+     * Can be overridden if more functionality is needed.
+     *
+     * @param \stdClass $data the form data
+     * @return bool returns true if the data was copied successfully, false otherwise
+     */
+    public function copy_element($data) {
+        return true;
+    }
+
+    /**
+     * This defines if an element plugin can be added to a certificate.
+     * Can be overridden if an element plugin wants to take over the control.
+     *
+     * @return bool returns true if the element can be added, false otherwise
+     */
+    public static function can_add() {
+        return true;
+    }
+
+    /**
+     * Handles rendering the element on the pdf.
+     *
+     * Must be overridden.
+     *
+     * @param \pdf $pdf the pdf object
+     * @param bool $preview true if it is a preview, false otherwise
+     * @param \stdClass $user the user we are rendering this for
+     */
+    public abstract function render($pdf, $preview, $user);
+
+    /**
+     * Render the element in html.
+     *
+     * Must be overridden.
+     *
+     * This function is used to render the element when we are using the
+     * drag and drop interface to position it.
+     *
+     * @return string the html
+     */
+    public abstract function render_html();
+
+    /**
+     * Handles deleting any data this element may have introduced.
+     * Can be overridden if more functionality is needed.
+     *
+     * @return bool success return true if deletion success, false otherwise
+     */
+    public function delete() {
+        global $DB;
+
+        return $DB->delete_records('customcert_elements', array('id' => $this->id));
+    }
+
+    /**
+     * This function is responsible for handling the restoration process of the element.
+     *
+     * For example, the function may save data that is related to another course module, this
+     * data will need to be updated if we are restoring the course as the course module id will
+     * be different in the new course.
+     *
+     * @param \restore_customcert_activity_task $restore
+     */
+    public function after_restore($restore) {
+
+    }
+
+    /**
+     * Magic getter for read only access.
+     *
+     * @param string $name
+     */
+    public function __get($name) {
+        debugging('Please call the appropriate get_* function instead of relying on magic getters', DEBUG_DEVELOPER);
+        if (property_exists($this->element, $name)) {
+            return $this->element->$name;
+        }
+    }
+
+    /**
+     * Set edit form instance for the custom cert element.
+     *
+     * @param \mod_customcert\edit_element_form $editelementform
+     */
+    public function set_edit_element_form(edit_element_form $editelementform) {
+        $this->editelementform = $editelementform;
+    }
+
+    /**
+     * Get edit form instance for the custom cert element.
+     *
+     * @return \mod_customcert\edit_element_form
+     */
+    public function get_edit_element_form() {
+        if (empty($this->editelementform)) {
+            throw new \coding_exception('Edit element form instance is not set.');
+        }
+
+        return $this->editelementform;
+    }
+
+}

classes/element_factory.php

@@ -0,0 +1,70 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Contains the factory class responsible for creating custom certificate instances.
+ *
+ * @package    mod_customcert
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_customcert;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The factory class responsible for creating custom certificate instances.
+ *
+ * @package    mod_customcert
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class element_factory {
+
+    /**
+     * Returns an instance of the element class.
+     *
+     * @param \stdClass $element the element
+     * @return \mod_customcert\element|bool returns the instance of the element class, or false if element
+     *         class does not exists.
+     */
+    public static function get_element_instance($element) {
+        // Get the class name.
+        $classname = '\\customcertelement_' . $element->element . '\\element';
+
+        $data = new \stdClass();
+        $data->id = $element->id ?? null;
+        $data->pageid = $element->pageid ?? null;
+        $data->name = $element->name ?? get_string('pluginname', 'customcertelement_' . $element->element);
+        $data->element = $element->element;
+        $data->data = $element->data ?? null;
+        $data->font = $element->font ?? null;
+        $data->fontsize = $element->fontsize ?? null;
+        $data->colour = $element->colour ?? null;
+        $data->posx = $element->posx ?? null;
+        $data->posy = $element->posy ?? null;
+        $data->width = $element->width ?? null;
+        $data->refpoint = $element->refpoint ?? null;
+
+        // Ensure the necessary class exists.
+        if (class_exists($classname)) {
+            return new $classname($data);
+        }
+
+        return false;
+    }
+}

classes/element_helper.php

@@ -0,0 +1,609 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Provides useful functions related to elements.
+ *
+ * @package    mod_customcert
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace mod_customcert;
+
+defined('MOODLE_INTERNAL') || die();
+
+require_once($CFG->libdir . '/grade/constants.php');
+require_once($CFG->dirroot . '/grade/lib.php');
+require_once($CFG->dirroot . '/grade/querylib.php');
+
+/**
+ * Class helper.
+ *
+ * Provides useful functions related to elements.
+ *
+ * @package    mod_customcert
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class element_helper {
+
+    /**
+     * @var int the top-left of element
+     */
+    const CUSTOMCERT_REF_POINT_TOPLEFT = 0;
+
+    /**
+     * @var int the top-center of element
+     */
+    const CUSTOMCERT_REF_POINT_TOPCENTER = 1;
+
+    /**
+     * @var int the top-left of element
+     */
+    const CUSTOMCERT_REF_POINT_TOPRIGHT = 2;
+
+    /**
+     * Common behaviour for rendering specified content on the pdf.
+     *
+     * @param \pdf $pdf the pdf object
+     * @param \mod_customcert\element $element the customcert element
+     * @param string $content the content to render
+     */
+    public static function render_content($pdf, $element, $content) {
+        list($font, $attr) = self::get_font($element);
+        $pdf->setFont($font, $attr, $element->get_fontsize());
+        $fontcolour = \TCPDF_COLORS::convertHTMLColorToDec($element->get_colour(), $fontcolour);
+        $pdf->SetTextColor($fontcolour['R'], $fontcolour['G'], $fontcolour['B']);
+
+        $x = $element->get_posx();
+        $y = $element->get_posy();
+        $w = $element->get_width();
+        $refpoint = $element->get_refpoint();
+        $actualwidth = $pdf->GetStringWidth($content);
+
+        if ($w and $w < $actualwidth) {
+            $actualwidth = $w;
+        }
+
+        switch ($refpoint) {
+            case self::CUSTOMCERT_REF_POINT_TOPRIGHT:
+                $x = $element->get_posx() - $actualwidth;
+                if ($x < 0) {
+                    $x = 0;
+                    $w = $element->get_posx();
+                } else {
+                    $w = $actualwidth;
+                }
+                break;
+            case self::CUSTOMCERT_REF_POINT_TOPCENTER:
+                $x = $element->get_posx() - $actualwidth / 2;
+                if ($x < 0) {
+                    $x = 0;
+                    $w = $element->get_posx() * 2;
+                } else {
+                    $w = $actualwidth;
+                }
+                break;
+        }
+
+        if ($w) {
+            $w += 0.0001;
+        }
+        $pdf->setCellPaddings(0, 0, 0, 0);
+        $pdf->writeHTMLCell($w, 0, $x, $y, $content, 0, 0, false, true);
+    }
+
+    /**
+     * Common behaviour for rendering specified content on the drag and drop page.
+     *
+     * @param \mod_customcert\element $element the customcert element
+     * @param string $content the content to render
+     * @return string the html
+     */
+    public static function render_html_content($element, $content) {
+        list($font, $attr) = self::get_font($element);
+        $fontstyle = 'font-family: ' . $font;
+        if (strpos($attr, 'B') !== false) {
+            $fontstyle .= '; font-weight: bold';
+        }
+        if (strpos($attr, 'I') !== false) {
+            $fontstyle .= '; font-style: italic';
+        }
+
+        $style = $fontstyle . '; color: ' . $element->get_colour() . '; font-size: ' . $element->get_fontsize() . 'pt;';
+        if ($element->get_width()) {
+            $style .= ' width: ' . $element->get_width() . 'mm';
+        }
+        return \html_writer::div($content, '', array('style' => $style));
+    }
+
+    /**
+     * Helper function to render the font elements.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance.
+     */
+    public static function render_form_element_font($mform) {
+        $mform->addElement('select', 'font', get_string('font', 'customcert'), \mod_customcert\certificate::get_fonts());
+        $mform->setType('font', PARAM_TEXT);
+        $mform->setDefault('font', 'times');
+        $mform->addHelpButton('font', 'font', 'customcert');
+        $mform->addElement('select', 'fontsize', get_string('fontsize', 'customcert'),
+            \mod_customcert\certificate::get_font_sizes());
+        $mform->setType('fontsize', PARAM_INT);
+        $mform->setDefault('fontsize', 12);
+        $mform->addHelpButton('fontsize', 'fontsize', 'customcert');
+    }
+
+    /**
+     * Helper function to render the colour elements.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance.
+     */
+    public static function render_form_element_colour($mform) {
+        $mform->addElement('customcert_colourpicker', 'colour', get_string('fontcolour', 'customcert'));
+        $mform->setType('colour', PARAM_RAW); // Need to validate that this is a valid colour.
+        $mform->setDefault('colour', '#000000');
+        $mform->addHelpButton('colour', 'fontcolour', 'customcert');
+    }
+
+    /**
+     * Helper function to render the position elements.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance.
+     */
+    public static function render_form_element_position($mform) {
+        $mform->addElement('text', 'posx', get_string('posx', 'customcert'), array('size' => 10));
+        $mform->setType('posx', PARAM_INT);
+        $mform->setDefault('posx', 0);
+        $mform->addHelpButton('posx', 'posx', 'customcert');
+        $mform->addElement('text', 'posy', get_string('posy', 'customcert'), array('size' => 10));
+        $mform->setType('posy', PARAM_INT);
+        $mform->setDefault('posy', 0);
+        $mform->addHelpButton('posy', 'posy', 'customcert');
+    }
+
+    /**
+     * Helper function to render the width element.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance.
+     */
+    public static function render_form_element_width($mform) {
+        $mform->addElement('text', 'width', get_string('elementwidth', 'customcert'), array('size' => 10));
+        $mform->setType('width', PARAM_INT);
+        $mform->setDefault('width', 0);
+        $mform->addHelpButton('width', 'elementwidth', 'customcert');
+    }
+
+    /**
+     * Helper function to render the refpoint element.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance.
+     */
+    public static function render_form_element_refpoint($mform) {
+        $refpointoptions = array();
+        $refpointoptions[self::CUSTOMCERT_REF_POINT_TOPLEFT] = get_string('topleft', 'customcert');
+        $refpointoptions[self::CUSTOMCERT_REF_POINT_TOPCENTER] = get_string('topcenter', 'customcert');
+        $refpointoptions[self::CUSTOMCERT_REF_POINT_TOPRIGHT] = get_string('topright', 'customcert');
+
+        $mform->addElement('select', 'refpoint', get_string('refpoint', 'customcert'), $refpointoptions);
+        $mform->setType('refpoint', PARAM_INT);
+        $mform->setDefault('refpoint', self::CUSTOMCERT_REF_POINT_TOPCENTER);
+        $mform->addHelpButton('refpoint', 'refpoint', 'customcert');
+    }
+
+    /**
+     * Helper function to performs validation on the colour element.
+     *
+     * @param array $data the submitted data
+     * @return array the validation errors
+     */
+    public static function validate_form_element_colour($data) {
+        $errors = array();
+        // Validate the colour.
+        if (!self::validate_colour($data['colour'])) {
+            $errors['colour'] = get_string('invalidcolour', 'customcert');
+        }
+        return $errors;
+    }
+
+    /**
+     * Helper function to performs validation on the position elements.
+     *
+     * @param array $data the submitted data
+     * @return array the validation errors
+     */
+    public static function validate_form_element_position($data) {
+        $errors = array();
+
+        // Check if posx is not set, or not numeric or less than 0.
+        if ((!isset($data['posx'])) || (!is_numeric($data['posx'])) || ($data['posx'] < 0)) {
+            $errors['posx'] = get_string('invalidposition', 'customcert', 'X');
+        }
+        // Check if posy is not set, or not numeric or less than 0.
+        if ((!isset($data['posy'])) || (!is_numeric($data['posy'])) || ($data['posy'] < 0)) {
+            $errors['posy'] = get_string('invalidposition', 'customcert', 'Y');
+        }
+
+        return $errors;
+    }
+
+    /**
+     * Helper function to perform validation on the width element.
+     *
+     * @param array $data the submitted data
+     * @return array the validation errors
+     */
+    public static function validate_form_element_width($data) {
+        $errors = array();
+
+        // Check if width is less than 0.
+        if (isset($data['width']) && $data['width'] < 0) {
+            $errors['width'] = get_string('invalidelementwidth', 'customcert');
+        }
+
+        return $errors;
+    }
+
+    /**
+     * Returns the font used for this element.
+     *
+     * @param \mod_customcert\element $element the customcert element
+     * @return array the font and font attributes
+     */
+    public static function get_font($element) {
+        // Variable for the font.
+        $font = $element->get_font();
+        // Get the last two characters of the font name.
+        $fontlength = strlen($font);
+        $lastchar = $font[$fontlength - 1];
+        $secondlastchar = $font[$fontlength - 2];
+        // The attributes of the font.
+        $attr = '';
+        // Check if the last character is 'i'.
+        if ($lastchar == 'i') {
+            // Remove the 'i' from the font name.
+            $font = substr($font, 0, -1);
+            // Check if the second last char is b.
+            if ($secondlastchar == 'b') {
+                // Remove the 'b' from the font name.
+                $font = substr($font, 0, -1);
+                $attr .= 'B';
+            }
+            $attr .= 'I';
+        } else if ($lastchar == 'b') {
+            // Remove the 'b' from the font name.
+            $font = substr($font, 0, -1);
+            $attr .= 'B';
+        }
+        return array($font, $attr);
+    }
+
+    /**
+     * Validates the colour selected.
+     *
+     * @param string $colour
+     * @return bool returns true if the colour is valid, false otherwise
+     */
+    public static function validate_colour($colour) {
+        // List of valid HTML colour names.
+        $colournames = array(
+            'aliceblue', 'antiquewhite', 'aqua', 'aquamarine', 'azure',
+            'beige', 'bisque', 'black', 'blanchedalmond', 'blue',
+            'blueviolet', 'brown', 'burlywood', 'cadetblue', 'chartreuse',
+            'chocolate', 'coral', 'cornflowerblue', 'cornsilk', 'crimson',
+            'cyan', 'darkblue', 'darkcyan', 'darkgoldenrod', 'darkgray',
+            'darkgrey', 'darkgreen', 'darkkhaki', 'darkmagenta',
+            'darkolivegreen', 'darkorange', 'darkorchid', 'darkred',
+            'darksalmon', 'darkseagreen', 'darkslateblue', 'darkslategray',
+            'darkslategrey', 'darkturquoise', 'darkviolet', 'deeppink',
+            'deepskyblue', 'dimgray', 'dimgrey', 'dodgerblue', 'firebrick',
+            'floralwhite', 'forestgreen', 'fuchsia', 'gainsboro',
+            'ghostwhite', 'gold', 'goldenrod', 'gray', 'grey', 'green',
+            'greenyellow', 'honeydew', 'hotpink', 'indianred', 'indigo',
+            'ivory', 'khaki', 'lavender', 'lavenderblush', 'lawngreen',
+            'lemonchiffon', 'lightblue', 'lightcoral', 'lightcyan',
+            'lightgoldenrodyellow', 'lightgray', 'lightgrey', 'lightgreen',
+            'lightpink', 'lightsalmon', 'lightseagreen', 'lightskyblue',
+            'lightslategray', 'lightslategrey', 'lightsteelblue', 'lightyellow',
+            'lime', 'limegreen', 'linen', 'magenta', 'maroon',
+            'mediumaquamarine', 'mediumblue', 'mediumorchid', 'mediumpurple',
+            'mediumseagreen', 'mediumslateblue', 'mediumspringgreen',
+            'mediumturquoise', 'mediumvioletred', 'midnightblue', 'mintcream',
+            'mistyrose', 'moccasin', 'navajowhite', 'navy', 'oldlace', 'olive',
+            'olivedrab', 'orange', 'orangered', 'orchid', 'palegoldenrod',
+            'palegreen', 'paleturquoise', 'palevioletred', 'papayawhip',
+            'peachpuff', 'peru', 'pink', 'plum', 'powderblue', 'purple', 'red',
+            'rosybrown', 'royalblue', 'saddlebrown', 'salmon', 'sandybrown',
+            'seagreen', 'seashell', 'sienna', 'silver', 'skyblue', 'slateblue',
+            'slategray', 'slategrey', 'snow', 'springgreen', 'steelblue', 'tan',
+            'teal', 'thistle', 'tomato', 'turquoise', 'violet', 'wheat', 'white',
+            'whitesmoke', 'yellow', 'yellowgreen'
+        );
+
+        if (preg_match('/^#?([[:xdigit:]]{3}){1,2}$/', $colour)) {
+            return true;
+        } else if (in_array(strtolower($colour), $colournames)) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Helper function that returns the sequence on a specified customcert page for a
+     * newly created element.
+     *
+     * @param int $pageid the id of the page we are adding this element to
+     * @return int the element number
+     */
+    public static function get_element_sequence($pageid) {
+        global $DB;
+
+        // Set the sequence of the element we are creating.
+        $sequence = 1;
+        // Check if there already elements that exist, if so, overwrite value.
+        $sql = "SELECT MAX(sequence) as maxsequence
+                  FROM {customcert_elements}
+                 WHERE pageid = :id";
+        // Get the current max sequence on this page and add 1 to get the new sequence.
+        if ($maxseq = $DB->get_record_sql($sql, array('id' => $pageid))) {
+            $sequence = $maxseq->maxsequence + 1;
+        }
+
+        return $sequence;
+    }
+
+    /**
+     * Helper function that returns the course id for this element.
+     *
+     * @param int $elementid The element id
+     * @return int The course id
+     */
+    public static function get_courseid($elementid) {
+        global $DB, $SITE;
+
+        $sql = "SELECT course
+                  FROM {customcert} c
+            INNER JOIN {customcert_pages} cp
+                    ON c.templateid = cp.templateid
+            INNER JOIN {customcert_elements} ce
+                    ON cp.id = ce.pageid
+                 WHERE ce.id = :elementid";
+
+        // Check if there is a course associated with this element.
+        if ($course = $DB->get_record_sql($sql, array('elementid' => $elementid))) {
+            return $course->course;
+        } else { // Must be in a site template.
+            return $SITE->id;
+        }
+    }
+
+    /**
+     * Helper function that returns the context for this element.
+     *
+     * @param int $elementid The element id
+     * @return \context The context
+     */
+    public static function get_context(int $elementid) : \context {
+        global $DB;
+
+        $sql = "SELECT ct.contextid
+                  FROM {customcert_templates} ct
+            INNER JOIN {customcert_pages} cp
+                    ON ct.id = cp.templateid
+            INNER JOIN {customcert_elements} ce
+                    ON cp.id = ce.pageid
+                 WHERE ce.id = :elementid";
+        $contextid = $DB->get_field_sql($sql, array('elementid' => $elementid), MUST_EXIST);
+
+        return \context::instance_by_id($contextid);
+    }
+
+    /**
+     * Return the list of possible elements to add.
+     *
+     * @return array the list of element types that can be used.
+     */
+    public static function get_available_element_types() {
+        global $CFG;
+
+        // Array to store the element types.
+        $options = array();
+
+        // Check that the directory exists.
+        $elementdir = "$CFG->dirroot/mod/customcert/element";
+        if (file_exists($elementdir)) {
+            // Get directory contents.
+            $elementfolders = new \DirectoryIterator($elementdir);
+            // Loop through the elements folder.
+            foreach ($elementfolders as $elementfolder) {
+                // If it is not a directory or it is '.' or '..', skip it.
+                if (!$elementfolder->isDir() || $elementfolder->isDot()) {
+                    continue;
+                }
+                // Check that the standard class exists, if not we do
+                // not want to display it as an option as it will not work.
+                $foldername = $elementfolder->getFilename();
+                // Get the class name.
+                $classname = '\\customcertelement_' . $foldername . '\\element';
+                // Ensure the necessary class exists.
+                if (class_exists($classname)) {
+                    // Additionally, check if the user is allowed to add the element at all.
+                    if ($classname::can_add()) {
+                        $component = "customcertelement_{$foldername}";
+                        $options[$foldername] = get_string('pluginname', $component);
+                    }
+                }
+            }
+        }
+
+        \core_collator::asort($options);
+        return $options;
+    }
+
+    /**
+     * Helper function to return all the grades items for a given course.
+     *
+     * @param \stdClass $course The course we want to return the grade items for
+     * @return array the array of gradeable items in the course
+     */
+    public static function get_grade_items($course) {
+        // Array to store the grade items.
+        $arrgradeitems = array();
+
+        // Get other non-module related grade items.
+        if ($gradeitems = \grade_item::fetch_all(['courseid' => $course->id])) {
+            foreach ($gradeitems as $gi) {
+                if ($gi->is_course_item()) {
+                    continue; // Skipping for legacy reasons - this was added to individual elements.
+                }
+
+                if ($gi->is_external_item()) {
+                    $cm = get_coursemodule_from_instance($gi->itemmodule, $gi->iteminstance, $course->id);
+                    $modcontext = \context_module::instance($cm->id);
+                    $modname = format_string($cm->name, true, array('context' => $modcontext));
+                }
+
+                if ($gi->is_external_item() && !$gi->is_outcome_item()) {
+                    // Due to legacy reasons we are storing the course module ID here rather than the grade item id.
+                    // If we were to change we would need to provide upgrade steps to convert cm->id to gi->id.
+                    $arrgradeitems[$cm->id] = get_string('activity', 'mod_customcert') . ' : ' . $gi->get_name();
+                } else if ($gi->is_external_item() && $gi->is_outcome_item()) {
+                    // Get the name of the activity.
+                    $optionname = get_string('gradeoutcome', 'mod_customcert') . ' : '  . $modname . " - " . $gi->get_name();
+                    $arrgradeitems['gradeitem:' . $gi->id] = $optionname;
+                } else {
+                    $arrgradeitems['gradeitem:' . $gi->id] = get_string('gradeitem', 'grades') . ' : ' . $gi->get_name(true);
+                }
+            }
+
+            // Alphabetise this.
+            asort($arrgradeitems);
+        }
+
+        return $arrgradeitems;
+    }
+
+    /**
+     * Helper function to return the grade information for a course for a specified user.
+     *
+     * @param int $courseid
+     * @param int $gradeformat
+     * @param int $userid
+     * @return grade_information|bool the grade information, or false if there is none.
+     */
+    public static function get_course_grade_info($courseid, $gradeformat, $userid) {
+        $courseitem = \grade_item::fetch_course_item($courseid);
+
+        if (!$courseitem) {
+            return false;
+        }
+
+        $grade = new \grade_grade(array('itemid' => $courseitem->id, 'userid' => $userid));
+
+        return new grade_information(
+            $courseitem->get_name(),
+            $grade->finalgrade,
+            grade_format_gradevalue($grade->finalgrade, $courseitem, true, $gradeformat),
+            $grade->get_dategraded()
+        );
+    }
+
+    /**
+     * Helper function to return the grade information for a module for a specified user.
+     *
+     * @param int $cmid
+     * @param int $gradeformat
+     * @param int $userid
+     * @return grade_information|bool the grade information, or false if there is none.
+     */
+    public static function get_mod_grade_info($cmid, $gradeformat, $userid) {
+        global $DB;
+
+        if (!$cm = $DB->get_record('course_modules', array('id' => $cmid))) {
+            return false;
+        }
+
+        if (!$module = $DB->get_record('modules', array('id' => $cm->module))) {
+            return false;
+        }
+
+        $params = [
+            'itemtype' => 'mod',
+            'itemmodule' => $module->name,
+            'iteminstance' => $cm->instance,
+            'courseid' => $cm->course,
+            'itemnumber' => 0
+        ];
+        $gradeitem = \grade_item::fetch($params);
+
+        if (empty($gradeitem)) {
+            return false;
+        }
+
+        $grade = grade_get_grades(
+            $cm->course,
+            'mod',
+            $module->name,
+            $cm->instance,
+            $userid
+        );
+
+        if (!isset($grade->items[0]->grades[$userid])) {
+            return false;
+        }
+
+        $gradebookgrade = $grade->items[0]->grades[$userid];
+
+        $dategraded = null;
+        if (!empty($gradebookgrade->dategraded)) {
+            $dategraded = $gradebookgrade->dategraded;
+        }
+
+        $displaygrade = grade_format_gradevalue($gradebookgrade->grade, $gradeitem, true, $gradeformat);
+
+        return new grade_information(
+            $gradeitem->get_name(),
+            $gradebookgrade->grade,
+            $displaygrade,
+            $dategraded
+        );
+    }
+
+    /**
+     * Helper function to return the grade information for a grade item for a specified user.
+     *
+     * @param int $gradeitemid
+     * @param int $gradeformat
+     * @param int $userid
+     * @return grade_information|bool the grade information, or false if there is none.
+     */
+    public static function get_grade_item_info($gradeitemid, $gradeformat, $userid) {
+        if (!$gradeitem = \grade_item::fetch(['id' => $gradeitemid])) {
+            return false;
+        }
+
+        $grade = new \grade_grade(array('itemid' => $gradeitem->id, 'userid' => $userid));
+
+        return new grade_information(
+            $gradeitem->get_name(),
+            $grade->finalgrade,
+            grade_format_gradevalue($grade->finalgrade, $gradeitem, true, $gradeformat),
+            $grade->get_dategraded()
+        );
+    }
+}

classes/event/course_module_instance_list_viewed.php

@@ -17,20 +17,20 @@
 /**
  * Contains the course module instance list viewed event class.
  *
- * @package   mod_htmlcert
+ * @package   mod_customcert
- * @copyright 2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright 2017 Mark Nelson <markn@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert\event;
+namespace mod_customcert\event;
 
 defined('MOODLE_INTERNAL') || die();
 
 /**
  * The course module instance list viewed event class.
  *
- * @package   mod_htmlcert
+ * @package   mod_customcert
- * @copyright 2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright 2017 Mark Nelson <markn@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class course_module_instance_list_viewed extends \core\event\course_module_instance_list_viewed {

classes/event/course_module_viewed.php

@@ -17,20 +17,20 @@
 /**
  * Contains the course module viewed event class.
  *
- * @package   mod_htmlcert
+ * @package   mod_customcert
- * @copyright 2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright 2017 Mark Nelson <markn@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert\event;
+namespace mod_customcert\event;
 
 defined('MOODLE_INTERNAL') || die();
 
 /**
  * The course module viewed event class.
  *
- * @package   mod_htmlcert
+ * @package   mod_customcert
- * @copyright 2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright 2017 Mark Nelson <markn@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class course_module_viewed extends \core\event\course_module_viewed {
@@ -39,24 +39,14 @@ class course_module_viewed extends \core\event\course_module_viewed {
      * Initialises the event.
      */
     protected function init() {
-        $this->data['objecttable'] = 'htmlcert';
+        $this->data['objecttable'] = 'customcert';
         parent::init();
     }
 
-    /**
-     * {@inheritdoc}
-     *
-     * @return string[]
-     */
     public static function get_objectid_mapping() {
-        return array('db' => 'htmlcert', 'restore' => 'htmlcert');
+        return array('db' => 'customcert', 'restore' => 'customcert');
     }
 
-    /**
-     * {@inheritdoc}
-     *
-     * @return bool
-     */
     public static function get_other_mapping() {
         // No need to map.
         return false;

classes/external.php

@@ -17,11 +17,11 @@
 /**
  * This is the external API for this tool.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-namespace mod_htmlcert;
+namespace mod_customcert;
 defined('MOODLE_INTERNAL') || die();
 
 require_once("$CFG->libdir/externallib.php");
@@ -29,10 +29,152 @@ require_once("$CFG->libdir/externallib.php");
 /**
  * This is the external API for this tool.
  *
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class external extends \external_api {
+
+    /**
+     * Returns the save_element() parameters.
+     *
+     * @return \external_function_parameters
+     */
+    public static function save_element_parameters() {
+        return new \external_function_parameters(
+            array(
+                'templateid' => new \external_value(PARAM_INT, 'The template id'),
+                'elementid' => new \external_value(PARAM_INT, 'The element id'),
+                'values' => new \external_multiple_structure(
+                    new \external_single_structure(
+                        array(
+                            'name' => new \external_value(PARAM_ALPHANUMEXT, 'The field to update'),
+                            'value' => new \external_value(PARAM_RAW, 'The value of the field'),
+                        )
+                    )
+                )
+            )
+        );
+    }
+
+    /**
+     * Handles saving element data.
+     *
+     * @param int $templateid The template id.
+     * @param int $elementid The element id.
+     * @param array $values The values to save
+     * @return array
+     */
+    public static function save_element($templateid, $elementid, $values) {
+        global $DB;
+
+        $params = array(
+            'templateid' => $templateid,
+            'elementid' => $elementid,
+            'values' => $values
+        );
+        self::validate_parameters(self::save_element_parameters(), $params);
+
+        $template = $DB->get_record('customcert_templates', array('id' => $templateid), '*', MUST_EXIST);
+        $element = $DB->get_record('customcert_elements', array('id' => $elementid), '*', MUST_EXIST);
+
+        // Set the template.
+        $template = new \mod_customcert\template($template);
+
+        // Perform checks.
+        if ($cm = $template->get_cm()) {
+            self::validate_context(\context_module::instance($cm->id));
+        } else {
+            self::validate_context(\context_system::instance());
+        }
+        // Make sure the user has the required capabilities.
+        $template->require_manage();
+
+        // Set the values we are going to save.
+        $data = new \stdClass();
+        $data->id = $element->id;
+        $data->name = $element->name;
+        foreach ($values as $value) {
+            $field = $value['name'];
+            $data->$field = $value['value'];
+        }
+
+        // Get an instance of the element class.
+        if ($e = \mod_customcert\element_factory::get_element_instance($element)) {
+            return $e->save_form_elements($data);
+        }
+
+        return false;
+    }
+
+    /**
+     * Returns the save_element result value.
+     *
+     * @return \external_value
+     */
+    public static function save_element_returns() {
+        return new \external_value(PARAM_BOOL, 'True if successful, false otherwise');
+    }
+
+    /**
+     * Returns get_element() parameters.
+     *
+     * @return \external_function_parameters
+     */
+    public static function get_element_html_parameters() {
+        return new \external_function_parameters(
+            array(
+                'templateid' => new \external_value(PARAM_INT, 'The template id'),
+                'elementid' => new \external_value(PARAM_INT, 'The element id'),
+            )
+        );
+    }
+
+    /**
+     * Handles return the element's HTML.
+     *
+     * @param int $templateid The template id
+     * @param int $elementid The element id.
+     * @return string
+     */
+    public static function get_element_html($templateid, $elementid) {
+        global $DB;
+
+        $params = array(
+            'templateid' => $templateid,
+            'elementid' => $elementid
+        );
+        self::validate_parameters(self::get_element_html_parameters(), $params);
+
+        $template = $DB->get_record('customcert_templates', array('id' => $templateid), '*', MUST_EXIST);
+        $element = $DB->get_record('customcert_elements', array('id' => $elementid), '*', MUST_EXIST);
+
+        // Set the template.
+        $template = new \mod_customcert\template($template);
+
+        // Perform checks.
+        if ($cm = $template->get_cm()) {
+            self::validate_context(\context_module::instance($cm->id));
+        } else {
+            self::validate_context(\context_system::instance());
+        }
+
+        // Get an instance of the element class.
+        if ($e = \mod_customcert\element_factory::get_element_instance($element)) {
+            return $e->render_html();
+        }
+
+        return '';
+    }
+
+    /**
+     * Returns the get_element result value.
+     *
+     * @return \external_value
+     */
+    public static function get_element_html_returns() {
+        return new \external_value(PARAM_RAW, 'The HTML');
+    }
+
     /**
      * Returns the delete_issue() parameters.
      *
@@ -48,7 +190,7 @@ class external extends \external_api {
     }
 
     /**
-     * Handles deleting a htmlcert issue.
+     * Handles deleting a customcert issue.
      *
      * @param int $certificateid The certificate id.
      * @param int $issueid The issue id.
@@ -63,18 +205,18 @@ class external extends \external_api {
         ];
         self::validate_parameters(self::delete_issue_parameters(), $params);
 
-        $certificate = $DB->get_record('htmlcert', ['id' => $certificateid], '*', MUST_EXIST);
+        $certificate = $DB->get_record('customcert', ['id' => $certificateid], '*', MUST_EXIST);
-        $issue = $DB->get_record('htmlcert_issues', ['id' => $issueid, 'htmlcertid' => $certificateid], '*', MUST_EXIST);
+        $issue = $DB->get_record('customcert_issues', ['id' => $issueid, 'customcertid' => $certificateid], '*', MUST_EXIST);
 
-        $cm = get_coursemodule_from_instance('htmlcert', $certificate->id, 0, false, MUST_EXIST);
+        $cm = get_coursemodule_from_instance('customcert', $certificate->id, 0, false, MUST_EXIST);
 
         // Make sure the user has the required capabilities.
         $context = \context_module::instance($cm->id);
         self::validate_context($context);
-        require_capability('mod/htmlcert:manage', $context);
+        require_capability('mod/customcert:manage', $context);
 
         // Delete the issue.
-        return $DB->delete_records('htmlcert_issues', ['id' => $issue->id]);
+        return $DB->delete_records('customcert_issues', ['id' => $issue->id]);
     }
 
     /**

classes/grade_information.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -17,19 +17,19 @@
 /**
  * Contains the class that provides a grade object to be used by elements for display purposes.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert;
+namespace mod_customcert;
 
 defined('MOODLE_INTERNAL') || die();
 
 /**
  * The class that provides a grade object to be used by elements for display purposes.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
  * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */

classes/helper.php

@@ -1,64 +0,0 @@
-<?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
-//
-// Moodle is free software: you can redistribute it and/or modify
-// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// Moodle is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
-
-/**
- * Provides helper functionality.
- *
- * @package    mod_htmlcert
- * @copyright  2021 Mark Nelson <mdjnelson@gmail.com>, Klaus-Uwe Mitterer <kumitterer@kumi.systems>
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-
-namespace mod_htmlcert;
-
-use core_user\fields;
-
-defined('MOODLE_INTERNAL') || die();
-
-/**
- * Class helper.
- *
- * Helper functionality for this module.
- *
- * @package    mod_htmlcert
- * @copyright  2021 Mark Nelson <mdjnelson@gmail.com>, Klaus-Uwe Mitterer <kumitterer@kumi.systems>
- * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
- */
-class helper {
-
-    /**
-     * A centralised location for the all name fields.
-     *
-     * Returns a sql string snippet.
-     *
-     * @param string $tableprefix table query prefix to use in front of each field.
-     * @return string All name fields.
-     */
-    public static function get_all_user_name_fields(string $tableprefix = ''): string {
-        $alternatenames = [];
-        foreach (fields::get_name_fields() as $field) {
-            $alternatenames[$field] = $field;
-        }
-
-        if ($tableprefix) {
-            foreach ($alternatenames as $key => $altname) {
-                $alternatenames[$key] = $tableprefix . '.' . $altname;
-            }
-        }
-
-        return implode(',', $alternatenames);
-    }
-}

classes/load_template_form.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,23 +15,23 @@
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * This file contains the form for loading htmlcert templates.
+ * This file contains the form for loading customcert templates.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert;
+namespace mod_customcert;
 
 defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
 
 require_once($CFG->libdir . '/formslib.php');
 
 /**
- * The form for loading htmlcert templates.
+ * The form for loading customcert templates.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
  * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
@@ -47,30 +47,26 @@ class load_template_form extends \moodleform {
 
         // Get the context.
         $context = $this->_customdata['context'];
-        $syscontext = \context_system::instance();
 
-        $mform->addElement('header', 'loadtemplateheader', get_string('loadtemplate', 'htmlcert'));
+        $mform->addElement('header', 'loadtemplateheader', get_string('loadtemplate', 'customcert'));
 
         // Display a link to the manage templates page.
-        if ($context->contextlevel != CONTEXT_SYSTEM && has_capability('mod/htmlcert:manage', $syscontext)) {
+        if ($context->contextlevel != CONTEXT_SYSTEM && has_capability('mod/customcert:manage', \context_system::instance())) {
-            $link = \html_writer::link(new \moodle_url('/mod/htmlcert/manage_templates.php'),
+            $link = \html_writer::link(new \moodle_url('/mod/customcert/manage_templates.php'),
-                get_string('managetemplates', 'htmlcert'));
+                get_string('managetemplates', 'customcert'));
             $mform->addElement('static', 'managetemplates', '', $link);
         }
 
-        $arrtemplates = $DB->get_records_menu('htmlcert_templates', ['contextid' => $syscontext->id], 'name ASC', 'id, name');
+        $templates = $DB->get_records_menu('customcert_templates',
-        if ($arrtemplates) {
+            array('contextid' => \context_system::instance()->id), 'name ASC', 'id, name');
-            $templates = [];
+        if ($templates) {
-            foreach ($arrtemplates as $key => $template) {
-                $templates[$key] = format_string($template, true, ['context' => $context]);
-            }
             $group = array();
             $group[] = $mform->createElement('select', 'ltid', '', $templates);
-            $group[] = $mform->createElement('submit', 'loadtemplatesubmit', get_string('load', 'htmlcert'));
+            $group[] = $mform->createElement('submit', 'loadtemplatesubmit', get_string('load', 'customcert'));
             $mform->addElement('group', 'loadtemplategroup', '', $group, '', false);
             $mform->setType('ltid', PARAM_INT);
         } else {
-            $msg = \html_writer::tag('div', get_string('notemplates', 'htmlcert'), array('class' => 'alert'));
+            $msg = \html_writer::tag('div', get_string('notemplates', 'customcert'), array('class' => 'alert'));
             $mform->addElement('static', 'notemplates', '', $msg);
         }
     }

classes/manage_templates_table.php

@@ -17,12 +17,12 @@
 /**
  * The table that displays the templates in a given context.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert;
+namespace mod_customcert;
 
 defined('MOODLE_INTERNAL') || die;
 
@@ -33,8 +33,8 @@ require_once($CFG->libdir . '/tablelib.php');
 /**
  * Class for the table that displays the templates in a given context.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class manage_templates_table extends \table_sql {
@@ -50,7 +50,7 @@ class manage_templates_table extends \table_sql {
      * @param \context $context
      */
     public function __construct($context) {
-        parent::__construct('mod_htmlcert_manage_templates_table');
+        parent::__construct('mod_customcert_manage_templates_table');
 
         $columns = [
             'name',
@@ -77,7 +77,7 @@ class manage_templates_table extends \table_sql {
      * @return string
      */
     public function col_name($template) {
-        return format_string($template->name, true, ['context' => $this->context]);
+        return $template->name;
     }
 
     /**
@@ -90,11 +90,11 @@ class manage_templates_table extends \table_sql {
         global $OUTPUT;
 
         // Link to edit the template.
-        $editlink = new \moodle_url('/mod/htmlcert/edit.php', array('tid' => $template->id));
+        $editlink = new \moodle_url('/mod/customcert/edit.php', array('tid' => $template->id));
         $editicon = $OUTPUT->action_icon($editlink, new \pix_icon('t/edit', get_string('edit')));
 
         // Link to duplicate the template.
-        $duplicatelink = new \moodle_url('/mod/htmlcert/manage_templates.php',
+        $duplicatelink = new \moodle_url('/mod/customcert/manage_templates.php',
             array(
                 'tid' => $template->id,
                 'action' => 'duplicate',
@@ -105,7 +105,7 @@ class manage_templates_table extends \table_sql {
             array('class' => 'action-icon duplicate-icon'));
 
         // Link to delete the template.
-        $deletelink = new \moodle_url('/mod/htmlcert/manage_templates.php',
+        $deletelink = new \moodle_url('/mod/customcert/manage_templates.php',
             array(
                 'tid' => $template->id,
                 'action' => 'delete',
@@ -127,11 +127,11 @@ class manage_templates_table extends \table_sql {
     public function query_db($pagesize, $useinitialsbar = true) {
         global $DB;
 
-        $total = $DB->count_records('htmlcert_templates', array('contextid' => $this->context->id));
+        $total = $DB->count_records('customcert_templates', array('contextid' => $this->context->id));
 
         $this->pagesize($pagesize, $total);
 
-        $this->rawdata = $DB->get_records('htmlcert_templates', array('contextid' => $this->context->id),
+        $this->rawdata = $DB->get_records('customcert_templates', array('contextid' => $this->context->id),
             $this->get_sql_sort(), '*', $this->get_page_start(), $this->get_page_size());
 
         // Set initial bars.

classes/my_certificates_table.php

@@ -17,12 +17,12 @@
 /**
  * The report that displays the certificates the user has throughout the site.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2022 Kumi Systems e.U. <office@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert;
+namespace mod_customcert;
 
 defined('MOODLE_INTERNAL') || die;
 
@@ -33,8 +33,8 @@ require_once($CFG->libdir . '/tablelib.php');
 /**
  * Class for the report that displays the certificates the user has throughout the site.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2022 Kumi Systems e.U. <office@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class my_certificates_table extends \table_sql {
@@ -51,7 +51,7 @@ class my_certificates_table extends \table_sql {
      * @param string|null $download The file type, null if we are not downloading
      */
     public function __construct($userid, $download = null) {
-        parent::__construct('mod_htmlcert_report_table');
+        parent::__construct('mod_customcert_report_table');
 
         $columns = array(
             'name',
@@ -62,13 +62,13 @@ class my_certificates_table extends \table_sql {
         $headers = array(
             get_string('name'),
             get_string('course'),
-            get_string('receiveddate', 'htmlcert'),
+            get_string('receiveddate', 'customcert'),
-            get_string('code', 'htmlcert')
+            get_string('code', 'customcert')
         );
 
         // Check if we were passed a filename, which means we want to download it.
         if ($download) {
-            $this->is_downloading($download, 'htmlcert-report');
+            $this->is_downloading($download, 'customcert-report');
         }
 
         if (!$this->is_downloading()) {
@@ -94,7 +94,7 @@ class my_certificates_table extends \table_sql {
      * @return string
      */
     public function col_name($certificate) {
-        $cm = get_coursemodule_from_instance('htmlcert', $certificate->id);
+        $cm = get_coursemodule_from_instance('customcert', $certificate->id);
         $context = \context_module::instance($cm->id);
 
         return format_string($certificate->name, true, ['context' => $context]);
@@ -107,7 +107,7 @@ class my_certificates_table extends \table_sql {
      * @return string
      */
     public function col_coursename($certificate) {
-        $cm = get_coursemodule_from_instance('htmlcert', $certificate->id);
+        $cm = get_coursemodule_from_instance('customcert', $certificate->id);
         $context = \context_module::instance($cm->id);
 
         return format_string($certificate->coursename, true, ['context' => $context]);
@@ -142,13 +142,13 @@ class my_certificates_table extends \table_sql {
     public function col_download($certificate) {
         global $OUTPUT;
 
-        $icon = new \pix_icon('download', get_string('download'), 'htmlcert');
+        $icon = new \pix_icon('download', get_string('download'), 'customcert');
-        $link = new \moodle_url('/mod/htmlcert/my_certificates.php',
+        $link = new \moodle_url('/mod/customcert/my_certificates.php',
             array('userid' => $this->userid,
                   'certificateid' => $certificate->id,
                   'downloadcert' => '1'));
 
-        return $OUTPUT->action_link($link, '', new \popup_action('click', $link), null, $icon);
+        return $OUTPUT->action_link($link, '', null, null, $icon);
     }
 
     /**

classes/output/email/renderer.php

@@ -17,23 +17,23 @@
 /**
  * Email certificate as html renderer.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert\output\email;
+namespace mod_customcert\output\email;
 
 defined('MOODLE_INTERNAL') || die();
 
 /**
  * Email certificate as html renderer.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-class renderer extends \mod_htmlcert\output\renderer {
+class renderer extends \mod_customcert\output\renderer {
 
     /**
      * The template name for this renderer.

classes/output/email/renderer_textemail.php

@@ -17,23 +17,23 @@
 /**
  * Email certificate as text renderer.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert\output\email;
+namespace mod_customcert\output\email;
 
 defined('MOODLE_INTERNAL') || die();
 
 /**
  * Email certificate as text renderer.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-class renderer_textemail extends \mod_htmlcert\output\renderer {
+class renderer_textemail extends \mod_customcert\output\renderer {
 
     /**
      * The template name for this renderer.

classes/output/email_certificate.php

@@ -17,12 +17,12 @@
 /**
  * Email certificate renderable.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert\output;
+namespace mod_customcert\output;
 
 defined('MOODLE_INTERNAL') || die();
 
@@ -100,17 +100,17 @@ class email_certificate implements \renderable, \templatable {
         $info->coursefullname = $this->coursefullname;
 
         if ($this->isstudent) {
-            $data->emailgreeting = get_string('emailstudentgreeting', 'htmlcert', $this->userfullname);
+            $data->emailgreeting = get_string('emailstudentgreeting', 'customcert', $this->userfullname);
-            $data->emailbody = get_string('emailstudentbody', 'htmlcert', $info);
+            $data->emailbody = get_string('emailstudentbody', 'customcert', $info);
-            $data->emailbodyplaintext = get_string('emailstudentbodyplaintext', 'htmlcert', $info);
+            $data->emailbodyplaintext = get_string('emailstudentbodyplaintext', 'customcert', $info);
-            $data->emailcertificatelink = new \moodle_url('/mod/htmlcert/view.php', array('id' => $this->cmid));
+            $data->emailcertificatelink = new \moodle_url('/mod/customcert/view.php', array('id' => $this->cmid));
-            $data->emailcertificatetext = get_string('emailstudentcertificatelinktext', 'htmlcert');
+            $data->emailcertificatetext = get_string('emailstudentcertificatelinktext', 'customcert');
         } else {
-            $data->emailgreeting = get_string('emailnonstudentgreeting', 'htmlcert');
+            $data->emailgreeting = get_string('emailnonstudentgreeting', 'customcert');
-            $data->emailbody = get_string('emailnonstudentbody', 'htmlcert', $info);
+            $data->emailbody = get_string('emailnonstudentbody', 'customcert', $info);
-            $data->emailbodyplaintext = get_string('emailnonstudentbodyplaintext', 'htmlcert', $info);
+            $data->emailbodyplaintext = get_string('emailnonstudentbodyplaintext', 'customcert', $info);
-            $data->emailcertificatelink = new \moodle_url('/mod/htmlcert/view.php', array('id' => $this->cmid));
+            $data->emailcertificatelink = new \moodle_url('/mod/customcert/view.php', array('id' => $this->cmid));
-            $data->emailcertificatetext = get_string('emailnonstudentcertificatelinktext', 'htmlcert');
+            $data->emailcertificatetext = get_string('emailnonstudentcertificatelinktext', 'customcert');
         }
 
         return $data;

classes/output/mobile.php

@@ -17,12 +17,12 @@
 /**
  * Contains the mobile output class for the custom certificate.
  *
- * @package   mod_htmlcert
+ * @package   mod_customcert
- * @copyright 2018 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright 2018 Mark Nelson <markn@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert\output;
+namespace mod_customcert\output;
 
 defined('MOODLE_INTERNAL') || die();
 
@@ -44,40 +44,39 @@ class mobile {
         global $OUTPUT, $DB, $USER;
 
         $args = (object) $args;
-        $versionname = $args->appversioncode >= 3950 ? 'latest' : 'ionic3';
 
         $cmid = $args->cmid;
-        $groupid = empty($args->group) ? 0 : (int) $args->group; // By default, group 0.
+        $groupid = empty($args->group) ? 0 : $args->group; // By default, group 0.
 
         // Capabilities check.
-        $cm = get_coursemodule_from_id('htmlcert', $cmid);
+        $cm = get_coursemodule_from_id('customcert', $cmid);
         $context = \context_module::instance($cm->id);
-        self::require_capability($cm, $context, 'mod/htmlcert:view');
+        self::require_capability($cm, $context, 'mod/customcert:view');
 
         // Set some variables we are going to be using.
-        $certificate = $DB->get_record('htmlcert', ['id' => $cm->instance], '*', MUST_EXIST);
+        $certificate = $DB->get_record('customcert', ['id' => $cm->instance], '*', MUST_EXIST);
         $certificate->name = format_string($certificate->name);
         list($certificate->intro, $certificate->introformat) = external_format_text($certificate->intro,
-            $certificate->introformat, $context->id, 'mod_htmlcert', 'intro');
+            $certificate->introformat, $context->id, 'mod_customcert', 'intro');
 
         // Get any issues this person may have.
         $issue = false;
-        if ($issues = $DB->get_records('htmlcert_issues', ['userid' => $USER->id, 'htmlcertid' => $certificate->id],
+        if ($issues = $DB->get_records('customcert_issues', ['userid' => $USER->id, 'customcertid' => $certificate->id],
                 'timecreated DESC')) {
             $issue = reset($issues);
         }
 
         $requiredtimemet = true;
-        $canmanage = has_capability('mod/htmlcert:manage', $context);
+        $canmanage = has_capability('mod/customcert:manage', $context);
         if ($certificate->requiredtime && !$canmanage) {
-            if (\mod_htmlcert\certificate::get_course_time($certificate->course) < ($certificate->requiredtime * 60)) {
+            if (\mod_customcert\certificate::get_course_time($certificate->course) < ($certificate->requiredtime * 60)) {
                 $requiredtimemet = false;
             }
         }
 
         $fileurl = "";
         if ($requiredtimemet) {
-            $fileurl = new \moodle_url('/mod/htmlcert/mobile/pluginfile.php', ['certificateid' => $certificate->id,
+            $fileurl = new \moodle_url('/mod/customcert/mobile/pluginfile.php', ['certificateid' => $certificate->id,
                 'userid' => $USER->id]);
             $fileurl = $fileurl->out(true);
         }
@@ -85,7 +84,7 @@ class mobile {
         $showreport = false;
         $groups = [];
         $recipients = [];
-        if (has_capability('mod/htmlcert:viewreport', $context)) {
+        if (has_capability('mod/customcert:viewreport', $context)) {
             $showreport = true;
 
             // Get the groups (if any) to display - also sets active group.
@@ -95,10 +94,10 @@ class mobile {
                 $groupmode = 'aag';
             }
 
-            $recipients = \mod_htmlcert\certificate::get_issues($certificate->id, $groupmode, $cm, 0, 0);
+            $recipients = \mod_customcert\certificate::get_issues($certificate->id, $groupmode, $cm, 0, 0);
             foreach ($recipients as $recipient) {
                 $recipient->displayname = fullname($recipient);
-                $recipient->fileurl = new \moodle_url('/mod/htmlcert/mobile/pluginfile.php', ['certificateid' => $certificate->id,
+                $recipient->fileurl = new \moodle_url('/mod/customcert/mobile/pluginfile.php', ['certificateid' => $certificate->id,
                     'userid' => $recipient->id]);
             }
         }
@@ -115,7 +114,6 @@ class mobile {
             'showreport' => $showreport,
             'hasrecipients' => !empty($recipients),
             'recipients' => array_values($recipients),
-            'numrecipients' => count($recipients),
             'currenttimestamp' => time()
         ];
 
@@ -123,13 +121,11 @@ class mobile {
             'templates' => [
                 [
                     'id' => 'main',
-                    'html' => $OUTPUT->render_from_template("mod_htmlcert/mobile_view_activity_page_$versionname", $data),
+                    'html' => $OUTPUT->render_from_template('mod_customcert/mobile_view_activity_page', $data),
                 ],
             ],
             'javascript' => '',
-            'otherdata' => [
+            'otherdata' => ''
-                'group' => $groupid,
-            ]
         ];
     }
 

classes/output/renderer.php

@@ -17,12 +17,12 @@
 /**
  * Contains renderer class.
  *
- * @package   mod_htmlcert
+ * @package   mod_customcert
- * @copyright 2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright 2017 Mark Nelson <markn@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert\output;
+namespace mod_customcert\output;
 
 defined('MOODLE_INTERNAL') || die();
 
@@ -31,8 +31,8 @@ use plugin_renderer_base;
 /**
  * Renderer class.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class renderer extends plugin_renderer_base {
@@ -42,12 +42,12 @@ class renderer extends plugin_renderer_base {
      *
      * Defer to template.
      *
-     * @param \mod_htmlcert\output\verify_certificate_results $page
+     * @param \mod_customcert\output\verify_certificate_results $page
      * @return string html for the page
      */
     public function render_verify_certificate_results(verify_certificate_results $page) {
         $data = $page->export_for_template($this);
-        return parent::render_from_template('mod_htmlcert/verify_certificate_results', $data);
+        return parent::render_from_template('mod_customcert/verify_certificate_results', $data);
     }
 
     /**
@@ -58,6 +58,6 @@ class renderer extends plugin_renderer_base {
      */
     public function render_email_certificate(email_certificate $certificate) {
         $data = $certificate->export_for_template($this);
-        return $this->render_from_template('mod_htmlcert/' . $this->get_template_name(), $data);
+        return $this->render_from_template('mod_customcert/' . $this->get_template_name(), $data);
     }
 }

classes/output/verify_certificate_result.php

@@ -17,12 +17,12 @@
 /**
  * Contains class used to prepare a verification result for display.
  *
- * @package   mod_htmlcert
+ * @package   mod_customcert
  * @copyright 2017 Mark Nelson <markn@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert\output;
+namespace mod_customcert\output;
 
 defined('MOODLE_INTERNAL') || die();
 
@@ -32,7 +32,7 @@ use templatable;
 /**
  * Class to prepare a verification result for display.
  *
- * @package   mod_htmlcert
+ * @package   mod_customcert
  * @copyright 2017 Mark Nelson <markn@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
@@ -69,7 +69,7 @@ class verify_certificate_result implements templatable, renderable {
      * @param \stdClass $result
      */
     public function __construct($result) {
-        $cm = get_coursemodule_from_instance('htmlcert', $result->certificateid);
+        $cm = get_coursemodule_from_instance('customcert', $result->certificateid);
         $context = \context_module::instance($cm->id);
 
         $this->userprofileurl = new \moodle_url('/user/view.php', array('id' => $result->userid,

classes/output/verify_certificate_results.php

@@ -17,12 +17,12 @@
 /**
  * Contains class used to prepare verification results for display.
  *
- * @package   mod_htmlcert
+ * @package   mod_customcert
- * @copyright 2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright 2017 Mark Nelson <markn@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert\output;
+namespace mod_customcert\output;
 
 defined('MOODLE_INTERNAL') || die();
 
@@ -32,8 +32,8 @@ use templatable;
 /**
  * Class to prepare verification results for display.
  *
- * @package   mod_htmlcert
+ * @package   mod_customcert
- * @copyright 2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright 2017 Mark Nelson <markn@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class verify_certificate_results implements templatable, renderable {
@@ -61,9 +61,9 @@ class verify_certificate_results implements templatable, renderable {
     public function __construct($result) {
         $this->success = $result->success;
         if ($this->success) {
-            $this->message = get_string('verified', 'htmlcert');
+            $this->message = get_string('verified', 'customcert');
         } else {
-            $this->message = get_string('notverified', 'htmlcert');
+            $this->message = get_string('notverified', 'customcert');
         }
         $this->issues = $result->issues;
     }

classes/page_helper.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -17,12 +17,12 @@
 /**
  * Provides useful functions related to setting up the page.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert;
+namespace mod_customcert;
 
 defined('MOODLE_INTERNAL') || die();
 
@@ -31,8 +31,8 @@ defined('MOODLE_INTERNAL') || die();
  *
  * Provides useful functions.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class page_helper {
@@ -56,7 +56,7 @@ class page_helper {
             $PAGE->set_pagelayout('admin');
             $PAGE->set_heading($SITE->fullname);
 
-            $urloverride = new \moodle_url('/admin/settings.php?section=modsettinghtmlcert');
+            $urloverride = new \moodle_url('/admin/settings.php?section=modsettingcustomcert');
             \navigation_node::override_active_url($urloverride);
         } else {
             $PAGE->set_heading(format_string($COURSE->fullname));

classes/plugininfo/customcertelement.php

@@ -0,0 +1,87 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Subplugin info class.
+ *
+ * @package   mod_customcert
+ * @copyright 2013 Mark Nelson <markn@moodle.com>
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+namespace mod_customcert\plugininfo;
+
+use core\plugininfo\base;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Subplugin info class.
+ *
+ * @package   mod_customcert
+ * @copyright 2013 Mark Nelson <markn@moodle.com>
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class customcertelement extends base {
+
+    /**
+     * Do not allow users to uninstall these plugins as it could cause customcerts to break.
+     *
+     * @return bool
+     */
+    public function is_uninstall_allowed() {
+        return false;
+    }
+
+    /**
+     * Loads plugin settings to the settings tree.
+     *
+     * @param \part_of_admin_tree $adminroot
+     * @param string $parentnodename
+     * @param bool $hassiteconfig whether the current user has moodle/site:config capability
+     */
+    public function load_settings(\part_of_admin_tree $adminroot, $parentnodename, $hassiteconfig) {
+        global $CFG, $USER, $DB, $OUTPUT, $PAGE;
+        $ADMIN = $adminroot;
+        $plugininfo = $this;
+
+        if (!$this->is_installed_and_upgraded()) {
+            return;
+        }
+
+        if (!$hassiteconfig or !file_exists($this->full_path('settings.php'))) {
+            return;
+        }
+
+        $section = $this->get_settings_section_name();
+        $settings = new \admin_settingpage($section, $this->displayname, 'moodle/site:config', false);
+
+        include($this->full_path('settings.php'));
+        $ADMIN->add($parentnodename, $settings);
+    }
+
+    /**
+     * Get the settings section name.
+     *
+     * @return null|string the settings section name.
+     */
+    public function get_settings_section_name() {
+        if (file_exists($this->full_path('settings.php'))) {
+            return 'customcertelement_' . $this->name;
+        } else {
+            return null;
+        }
+    }
+}

classes/privacy/provider.php

@@ -15,13 +15,13 @@
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * Privacy Subsystem implementation for mod_htmlcert.
+ * Privacy Subsystem implementation for mod_customcert.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2018 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-namespace mod_htmlcert\privacy;
+namespace mod_customcert\privacy;
 
 use core_privacy\local\metadata\collection;
 use core_privacy\local\request\approved_contextlist;
@@ -35,7 +35,7 @@ use core_privacy\local\request\writer;
 defined('MOODLE_INTERNAL') || die();
 
 /**
- * Privacy Subsystem implementation for mod_htmlcert.
+ * Privacy Subsystem implementation for mod_customcert.
  *
  * @copyright  2018 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
@@ -53,15 +53,15 @@ class provider implements
      */
     public static function get_metadata(collection $items) : collection {
         $items->add_database_table(
-            'htmlcert_issues',
+            'customcert_issues',
             [
-                'userid' => 'privacy:metadata:htmlcert_issues:userid',
+                'userid' => 'privacy:metadata:customcert_issues:userid',
-                'htmlcertid' => 'privacy:metadata:htmlcert_issues:htmlcertid',
+                'customcertid' => 'privacy:metadata:customcert_issues:customcertid',
-                'code' => 'privacy:metadata:htmlcert_issues:code',
+                'code' => 'privacy:metadata:customcert_issues:code',
-                'emailed' => 'privacy:metadata:htmlcert_issues:emailed',
+                'emailed' => 'privacy:metadata:customcert_issues:emailed',
-                'timecreated' => 'privacy:metadata:htmlcert_issues:timecreated',
+                'timecreated' => 'privacy:metadata:customcert_issues:timecreated',
             ],
-            'privacy:metadata:htmlcert_issues'
+            'privacy:metadata:customcert_issues'
         );
 
         return $items;
@@ -82,14 +82,14 @@ class provider implements
             INNER JOIN {modules} m
                     ON m.id = cm.module
                    AND m.name = :modulename
-            INNER JOIN {htmlcert} htmlcert
+            INNER JOIN {customcert} customcert
-                    ON htmlcert.id = cm.instance
+                    ON customcert.id = cm.instance
-            INNER JOIN {htmlcert_issues} htmlcertissues
+            INNER JOIN {customcert_issues} customcertissues
-                    ON htmlcertissues.htmlcertid = htmlcert.id
+                    ON customcertissues.customcertid = customcert.id
-                 WHERE htmlcertissues.userid = :userid";
+                 WHERE customcertissues.userid = :userid";
 
         $params = [
-            'modulename' => 'htmlcert',
+            'modulename' => 'customcert',
             'contextlevel' => CONTEXT_MODULE,
             'userid' => $userid,
         ];
@@ -112,19 +112,19 @@ class provider implements
         }
 
         // Fetch all users who have a custom certificate.
-        $sql = "SELECT htmlcertissues.userid
+        $sql = "SELECT customcertissues.userid
                   FROM {course_modules} cm
                   JOIN {modules} m
                     ON m.id = cm.module AND m.name = :modname
-                  JOIN {htmlcert} htmlcert
+                  JOIN {customcert} customcert
-                    ON htmlcert.id = cm.instance
+                    ON customcert.id = cm.instance
-                  JOIN {htmlcert_issues} htmlcertissues
+                  JOIN {customcert_issues} customcertissues
-                    ON htmlcertissues.htmlcertid = htmlcert.id
+                    ON customcertissues.customcertid = customcert.id
                  WHERE cm.id = :cmid";
 
         $params = [
             'cmid'      => $context->instanceid,
-            'modname'   => 'htmlcert',
+            'modname'   => 'customcert',
         ];
 
         $userlist->add_from_sql('userid', $sql, $params);
@@ -152,22 +152,22 @@ class provider implements
 
         $user = $contextlist->get_user();
 
-        // Get all the htmlcert activities associated with the above course modules.
+        // Get all the customcert activities associated with the above course modules.
-        $htmlcertidstocmids = self::get_htmlcert_ids_to_cmids_from_cmids($cmids);
+        $customcertidstocmids = self::get_customcert_ids_to_cmids_from_cmids($cmids);
 
-        list($insql, $inparams) = $DB->get_in_or_equal(array_keys($htmlcertidstocmids), SQL_PARAMS_NAMED);
+        list($insql, $inparams) = $DB->get_in_or_equal(array_keys($customcertidstocmids), SQL_PARAMS_NAMED);
         $params = array_merge($inparams, ['userid' => $user->id]);
-        $recordset = $DB->get_recordset_select('htmlcert_issues', "htmlcertid $insql AND userid = :userid",
+        $recordset = $DB->get_recordset_select('customcert_issues', "customcertid $insql AND userid = :userid",
             $params, 'timecreated, id ASC');
-        self::recordset_loop_and_export($recordset, 'htmlcertid', [], function($carry, $record) {
+        self::recordset_loop_and_export($recordset, 'customcertid', [], function($carry, $record) {
             $carry[] = [
                 'code' => $record->code,
                 'emailed' => transform::yesno($record->emailed),
                 'timecreated' => transform::datetime($record->timecreated)
             ];
             return $carry;
-        }, function($htmlcertid, $data) use ($user, $htmlcertidstocmids) {
+        }, function($customcertid, $data) use ($user, $customcertidstocmids) {
-            $context = \context_module::instance($htmlcertidstocmids[$htmlcertid]);
+            $context = \context_module::instance($customcertidstocmids[$customcertid]);
             $contextdata = helper::get_context_data($context, $user);
             $finaldata = (object) array_merge((array) $contextdata, ['issues' => $data]);
             helper::export_context_files($context, $user);
@@ -187,11 +187,11 @@ class provider implements
             return;
         }
 
-        if (!$cm = get_coursemodule_from_id('htmlcert', $context->instanceid)) {
+        if (!$cm = get_coursemodule_from_id('customcert', $context->instanceid)) {
             return;
         }
 
-        $DB->delete_records('htmlcert_issues', ['htmlcertid' => $cm->instance]);
+        $DB->delete_records('customcert_issues', ['customcertid' => $cm->instance]);
     }
 
     /**
@@ -212,7 +212,7 @@ class provider implements
                 continue;
             }
             $instanceid = $DB->get_field('course_modules', 'instance', ['id' => $context->instanceid], MUST_EXIST);
-            $DB->delete_records('htmlcert_issues', ['htmlcertid' => $instanceid, 'userid' => $userid]);
+            $DB->delete_records('customcert_issues', ['customcertid' => $instanceid, 'userid' => $userid]);
         }
     }
 
@@ -229,39 +229,39 @@ class provider implements
             return;
         }
 
-        $cm = get_coursemodule_from_id('htmlcert', $context->instanceid);
+        $cm = get_coursemodule_from_id('customcert', $context->instanceid);
         if (!$cm) {
-            // Only htmlcert module will be handled.
+            // Only customcert module will be handled.
             return;
         }
 
         $userids = $userlist->get_userids();
         list($usersql, $userparams) = $DB->get_in_or_equal($userids, SQL_PARAMS_NAMED);
 
-        $select = "htmlcertid = :htmlcertid AND userid $usersql";
+        $select = "customcertid = :customcertid AND userid $usersql";
-        $params = ['htmlcertid' => $cm->instance] + $userparams;
+        $params = ['customcertid' => $cm->instance] + $userparams;
-        $DB->delete_records_select('htmlcert_issues', $select, $params);
+        $DB->delete_records_select('customcert_issues', $select, $params);
     }
 
     /**
-     * Return a list of htmlcert IDs mapped to their course module ID.
+     * Return a list of Customcert IDs mapped to their course module ID.
      *
      * @param array $cmids The course module IDs.
-     * @return array In the form of [$htmlcertid => $cmid].
+     * @return array In the form of [$customcertid => $cmid].
      */
-    protected static function get_htmlcert_ids_to_cmids_from_cmids(array $cmids) {
+    protected static function get_customcert_ids_to_cmids_from_cmids(array $cmids) {
         global $DB;
 
         list($insql, $inparams) = $DB->get_in_or_equal($cmids, SQL_PARAMS_NAMED);
-        $sql = "SELECT htmlcert.id, cm.id AS cmid
+        $sql = "SELECT customcert.id, cm.id AS cmid
-                 FROM {htmlcert} htmlcert
+                 FROM {customcert} customcert
                  JOIN {modules} m
                    ON m.name = :modulename
                  JOIN {course_modules} cm
-                   ON cm.instance = htmlcert.id
+                   ON cm.instance = customcert.id
                   AND cm.module = m.id
                 WHERE cm.id $insql";
-        $params = array_merge($inparams, ['modulename' => 'htmlcert']);
+        $params = array_merge($inparams, ['modulename' => 'customcert']);
 
         return $DB->get_records_sql_menu($sql, $params);
     }

classes/report_table.php

@@ -17,12 +17,12 @@
 /**
  * The report that displays issued certificates.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert;
+namespace mod_customcert;
 
 defined('MOODLE_INTERNAL') || die;
 
@@ -33,16 +33,16 @@ require_once($CFG->libdir . '/tablelib.php');
 /**
  * Class for the report that displays issued certificates.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class report_table extends \table_sql {
 
     /**
-     * @var int $htmlcertid The custom certificate id
+     * @var int $customcertid The custom certificate id
      */
-    protected $htmlcertid;
+    protected $customcertid;
 
     /**
      * @var \stdClass $cm The course module.
@@ -57,16 +57,16 @@ class report_table extends \table_sql {
     /**
      * Sets up the table.
      *
-     * @param int $htmlcertid
+     * @param int $customcertid
      * @param \stdClass $cm the course module
      * @param bool $groupmode are we in group mode?
      * @param string|null $download The file type, null if we are not downloading
      */
-    public function __construct($htmlcertid, $cm, $groupmode, $download = null) {
+    public function __construct($customcertid, $cm, $groupmode, $download = null) {
-        parent::__construct('mod_htmlcert_report_table');
+        parent::__construct('mod_customcert_report_table');
 
         $context = \context_module::instance($cm->id);
-        $extrafields = \core_user\fields::for_identity($context)->get_required_fields();
+        $extrafields = get_extra_user_fields($context);
 
         $columns = [];
         $columns[] = 'fullname';
@@ -79,14 +79,14 @@ class report_table extends \table_sql {
         $headers = [];
         $headers[] = get_string('fullname');
         foreach ($extrafields as $extrafield) {
-            $headers[] = \core_user\fields::get_display_name($extrafield);
+            $headers[] = get_user_field_name($extrafield);
         }
-        $headers[] = get_string('receiveddate', 'htmlcert');
+        $headers[] = get_string('receiveddate', 'customcert');
-        $headers[] = get_string('code', 'htmlcert');
+        $headers[] = get_string('code', 'customcert');
 
         // Check if we were passed a filename, which means we want to download it.
         if ($download) {
-            $this->is_downloading($download, 'htmlcert-report');
+            $this->is_downloading($download, 'customcert-report');
         }
 
         if (!$this->is_downloading()) {
@@ -94,7 +94,7 @@ class report_table extends \table_sql {
             $headers[] = get_string('file');
         }
 
-        if (!$this->is_downloading() && has_capability('mod/htmlcert:manage', $context)) {
+        if (!$this->is_downloading() && has_capability('mod/customcert:manage', $context)) {
             $columns[] = 'actions';
             $headers[] = '';
         }
@@ -107,7 +107,7 @@ class report_table extends \table_sql {
         $this->no_sorting('download');
         $this->is_downloadable(true);
 
-        $this->htmlcertid = $htmlcertid;
+        $this->customcertid = $customcertid;
         $this->cm = $cm;
         $this->groupmode = $groupmode;
     }
@@ -157,8 +157,8 @@ class report_table extends \table_sql {
     public function col_download($user) {
         global $OUTPUT;
 
-        $icon = new \pix_icon('download', get_string('download'), 'htmlcert');
+        $icon = new \pix_icon('download', get_string('download'), 'customcert');
-        $link = new \moodle_url('/mod/htmlcert/view.php',
+        $link = new \moodle_url('/mod/customcert/view.php',
             [
                 'id' => $this->cm->id,
                 'downloadissue' => $user->id
@@ -178,7 +178,7 @@ class report_table extends \table_sql {
         global $OUTPUT;
 
         $icon = new \pix_icon('i/delete', get_string('delete'));
-        $link = new \moodle_url('/mod/htmlcert/view.php',
+        $link = new \moodle_url('/mod/customcert/view.php',
             [
                 'id' => $this->cm->id,
                 'deleteissue' => $user->issueid,
@@ -196,11 +196,11 @@ class report_table extends \table_sql {
      * @param bool $useinitialsbar do you want to use the initials bar.
      */
     public function query_db($pagesize, $useinitialsbar = true) {
-        $total = \mod_htmlcert\certificate::get_number_of_issues($this->htmlcertid, $this->cm, $this->groupmode);
+        $total = \mod_customcert\certificate::get_number_of_issues($this->customcertid, $this->cm, $this->groupmode);
 
         $this->pagesize($pagesize, $total);
 
-        $this->rawdata = \mod_htmlcert\certificate::get_issues($this->htmlcertid, $this->groupmode, $this->cm,
+        $this->rawdata = \mod_customcert\certificate::get_issues($this->customcertid, $this->groupmode, $this->cm,
             $this->get_page_start(), $this->get_page_size(), $this->get_sql_sort());
 
         // Set initial bars.
@@ -214,7 +214,7 @@ class report_table extends \table_sql {
      */
     public function download() {
         \core\session\manager::write_close();
-        $total = \mod_htmlcert\certificate::get_number_of_issues($this->htmlcertid, $this->cm, $this->groupmode);
+        $total = \mod_customcert\certificate::get_number_of_issues($this->customcertid, $this->cm, $this->groupmode);
         $this->out($total, false);
         exit;
     }

classes/search/activity.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,22 +15,22 @@
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * Search area for mod_htmlcert activities.
+ * Search area for mod_customcert activities.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert\search;
+namespace mod_customcert\search;
 
 defined('MOODLE_INTERNAL') || die();
 
 /**
- * Search area for mod_htmlcert activities.
+ * Search area for mod_customcert activities.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class activity extends \core_search\base_activity {

classes/task/email_certificate_task.php

@@ -17,21 +17,19 @@
 /**
  * A scheduled task for emailing certificates.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, 2021 Kumi Systems e.U. <office@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
-namespace mod_htmlcert\task;
+namespace mod_customcert\task;
-
-use mod_htmlcert\helper;
 
 defined('MOODLE_INTERNAL') || die();
 
 /**
  * A scheduled task for emailing certificates.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class email_certificate_task extends \core\task\scheduled_task {
@@ -42,7 +40,7 @@ class email_certificate_task extends \core\task\scheduled_task {
      * @return string
      */
     public function get_name() {
-        return get_string('taskemailcertificate', 'htmlcert');
+        return get_string('taskemailcertificate', 'customcert');
     }
 
     /**
@@ -55,29 +53,36 @@ class email_certificate_task extends \core\task\scheduled_task {
         $emailotherslengthsql = $DB->sql_length('c.emailothers');
         $sql = "SELECT c.*, ct.id as templateid, ct.name as templatename, ct.contextid, co.id as courseid,
                        co.fullname as coursefullname, co.shortname as courseshortname
-                  FROM {htmlcert} c
+                  FROM {customcert} c
-                  JOIN {htmlcert_templates} ct
+                  JOIN {customcert_templates} ct
                     ON c.templateid = ct.id
                   JOIN {course} co
                     ON c.course = co.id
                  WHERE (c.emailstudents = :emailstudents
                         OR c.emailteachers = :emailteachers
                         OR $emailotherslengthsql >= 3)";
-        if (!$htmlcerts = $DB->get_records_sql($sql, array('emailstudents' => 1, 'emailteachers' => 1))) {
+        if (!$customcerts = $DB->get_records_sql($sql, array('emailstudents' => 1, 'emailteachers' => 1))) {
             return;
         }
 
         // The renderers used for sending emails.
-        $htmlrenderer = $PAGE->get_renderer('mod_htmlcert', 'email', 'htmlemail');
+        $htmlrenderer = $PAGE->get_renderer('mod_customcert', 'email', 'htmlemail');
-        $textrenderer = $PAGE->get_renderer('mod_htmlcert', 'email', 'textemail');
+        $textrenderer = $PAGE->get_renderer('mod_customcert', 'email', 'textemail');
-
         foreach ($customcerts as $customcert) {
+            // Do not process an empty certificate.
+            $sql = "SELECT ce.*
+                      FROM {customcert_elements} ce
+                      JOIN {customcert_pages} cp
+                        ON cp.id = ce.pageid
+                      JOIN {customcert_templates} ct
+                        ON ct.id = cp.templateid
+                     WHERE ct.contextid = :contextid";
+            if (!$DB->record_exists_sql($sql, ['contextid' => $customcert->contextid])) {
+                continue;
+            }
 
             // Get the context.
-            $context = \context::instance_by_id($htmlcert->contextid);
+            $context = \context::instance_by_id($customcert->contextid);
-
-            // Set the $PAGE context - this ensure settings, such as language, are kept and don't default to the site settings.
-            $PAGE->set_context($context);
 
             // Get the person we are going to send this email on behalf of.
             $userfrom = \core_user::get_noreply_user();
@@ -85,9 +90,9 @@ class email_certificate_task extends \core\task\scheduled_task {
             // Store teachers for later.
             $teachers = get_enrolled_users($context, 'moodle/course:update');
 
-            $courseshortname = format_string($htmlcert->courseshortname, true, array('context' => $context));
+            $courseshortname = format_string($customcert->courseshortname, true, array('context' => $context));
-            $coursefullname = format_string($htmlcert->coursefullname, true, array('context' => $context));
+            $coursefullname = format_string($customcert->coursefullname, true, array('context' => $context));
-            $certificatename = format_string($htmlcert->name, true, array('context' => $context));
+            $certificatename = format_string($customcert->name, true, array('context' => $context));
 
             // Used to create the email subject.
             $info = new \stdClass;
@@ -97,16 +102,16 @@ class email_certificate_task extends \core\task\scheduled_task {
             $info->certificatename = $certificatename;
 
             // Get a list of all the issues.
-            $userfields = helper::get_all_user_name_fields('u');
+            $userfields = get_all_user_name_fields(true, 'u');
             $sql = "SELECT u.id, u.username, $userfields, u.email, ci.id as issueid, ci.emailed
-                        FROM {htmlcert_issues} ci
+                      FROM {customcert_issues} ci
                       JOIN {user} u
                         ON ci.userid = u.id
-                        WHERE ci.htmlcertid = :htmlcertid";
+                     WHERE ci.customcertid = :customcertid";
-            $issuedusers = $DB->get_records_sql($sql, array('htmlcertid' => $htmlcert->id));
+            $issuedusers = $DB->get_records_sql($sql, array('customcertid' => $customcert->id));
 
             // Now, get a list of users who can access the certificate but have not yet.
-            $enrolledusers = get_enrolled_users(\context_course::instance($htmlcert->courseid), 'mod/htmlcert:view');
+            $enrolledusers = get_enrolled_users(\context_course::instance($customcert->courseid), 'mod/customcert:view');
             foreach ($enrolledusers as $enroluser) {
                 // Check if the user has already been issued.
                 if (in_array($enroluser->id, array_keys((array) $issuedusers))) {
@@ -114,35 +119,35 @@ class email_certificate_task extends \core\task\scheduled_task {
                 }
 
                 // Now check if the certificate is not visible to the current user.
-                $cm = get_fast_modinfo($htmlcert->courseid, $enroluser->id)->instances['htmlcert'][$htmlcert->id];
+                $cm = get_fast_modinfo($customcert->courseid, $enroluser->id)->instances['customcert'][$customcert->id];
                 if (!$cm->uservisible) {
                     continue;
                 }
 
                 // Don't want to email those with the capability to manage the certificate.
-                if (has_capability('mod/htmlcert:manage', $context, $enroluser->id)) {
+                if (has_capability('mod/customcert:manage', $context, $enroluser->id)) {
                     continue;
                 }
 
                 // Only email those with the capability to receive the certificate.
-                if (!has_capability('mod/htmlcert:receiveissue', $context, $enroluser->id)) {
+                if (!has_capability('mod/customcert:receiveissue', $context, $enroluser->id)) {
                     continue;
                 }
 
                 // Check that they have passed the required time.
-                if (!empty($htmlcert->requiredtime)) {
+                if (!empty($customcert->requiredtime)) {
-                    if (\mod_htmlcert\certificate::get_course_time($htmlcert->courseid,
+                    if (\mod_customcert\certificate::get_course_time($customcert->courseid,
-                            $enroluser->id) < ($htmlcert->requiredtime * 60)) {
+                            $enroluser->id) < ($customcert->requiredtime * 60)) {
                         continue;
                     }
                 }
 
                 // Ensure the cert hasn't already been issued, e.g via the UI (view.php) - a race condition.
-                $issueid = $DB->get_field('htmlcert_issues', 'id',
+                $issueid = $DB->get_field('customcert_issues', 'id',
-                    array('userid' => $enroluser->id, 'htmlcertid' => $htmlcert->id), IGNORE_MULTIPLE);
+                    array('userid' => $enroluser->id, 'customcertid' => $customcert->id), IGNORE_MULTIPLE);
                 if (empty($issueid)) {
                     // Ok, issue them the certificate.
-                    $issueid = \mod_htmlcert\certificate::issue_certificate($htmlcert->id, $enroluser->id);
+                    $issueid = \mod_customcert\certificate::issue_certificate($customcert->id, $enroluser->id);
                 }
 
                 // Add them to the array so we email them.
@@ -171,18 +176,15 @@ class email_certificate_task extends \core\task\scheduled_task {
 
             // Now, email the people we need to.
             foreach ($issuedusers as $user) {
-                // Set up the user.
-                cron_setup_user($user);
-
                 $userfullname = fullname($user);
                 $info->userfullname = $userfullname;
 
                 // Now, get the PDF.
                 $template = new \stdClass();
-                $template->id = $htmlcert->templateid;
+                $template->id = $customcert->templateid;
-                $template->name = $htmlcert->templatename;
+                $template->name = $customcert->templatename;
-                $template->contextid = $htmlcert->contextid;
+                $template->contextid = $customcert->contextid;
-                $template = new \mod_htmlcert\template($template);
+                $template = new \mod_customcert\template($template);
                 $filecontents = $template->generate_pdf(false, $user->id, true);
 
                 // Set the name of the file we are going to send.
@@ -196,55 +198,53 @@ class email_certificate_task extends \core\task\scheduled_task {
                 $tempfile = $tempdir . '/' . md5(microtime() . $user->id) . '.pdf';
                 file_put_contents($tempfile, $filecontents);
 
-                if ($htmlcert->emailstudents) {
+                if ($customcert->emailstudents) {
-                    $renderable = new \mod_htmlcert\output\email_certificate(true, $userfullname, $courseshortname,
+                    $renderable = new \mod_customcert\output\email_certificate(true, $userfullname, $courseshortname,
-                        $coursefullname, $certificatename, $htmlcert->contextid);
+                        $coursefullname, $certificatename, $customcert->contextid);
 
-                    $subject = get_string('emailstudentsubject', 'htmlcert', $info);
+                    $subject = get_string('emailstudentsubject', 'customcert', $info);
                     $message = $textrenderer->render($renderable);
                     $messagehtml = $htmlrenderer->render($renderable);
-                    email_to_user($user, fullname($userfrom), html_entity_decode($subject), $message, $messagehtml,
+                    email_to_user($user, fullname($userfrom), $subject, $message, $messagehtml, $tempfile, $filename);
-                        $tempfile, $filename);
                 }
 
-                if ($htmlcert->emailteachers) {
+                if ($customcert->emailteachers) {
-                    $renderable = new \mod_htmlcert\output\email_certificate(false, $userfullname, $courseshortname,
+                    $renderable = new \mod_customcert\output\email_certificate(false, $userfullname, $courseshortname,
-                        $coursefullname, $certificatename, $htmlcert->contextid);
+                        $coursefullname, $certificatename, $customcert->contextid);
 
-                    $subject = get_string('emailnonstudentsubject', 'htmlcert', $info);
+                    $subject = get_string('emailnonstudentsubject', 'customcert', $info);
                     $message = $textrenderer->render($renderable);
                     $messagehtml = $htmlrenderer->render($renderable);
                     foreach ($teachers as $teacher) {
-                        email_to_user($teacher, fullname($userfrom), html_entity_decode($subject), $message, $messagehtml,
+                        email_to_user($teacher, fullname($userfrom), $subject, $message, $messagehtml, $tempfile,
-                            $tempfile, $filename);
+                            $filename);
                     }
                 }
 
-                if (!empty($htmlcert->emailothers)) {
+                if (!empty($customcert->emailothers)) {
-                    $others = explode(',', $htmlcert->emailothers);
+                    $others = explode(',', $customcert->emailothers);
                     foreach ($others as $email) {
                         $email = trim($email);
                         if (validate_email($email)) {
-                            $renderable = new \mod_htmlcert\output\email_certificate(false, $userfullname,
+                            $renderable = new \mod_customcert\output\email_certificate(false, $userfullname,
-                                $courseshortname, $coursefullname, $certificatename, $htmlcert->contextid);
+                                $courseshortname, $coursefullname, $certificatename, $customcert->contextid);
 
-                            $subject = get_string('emailnonstudentsubject', 'htmlcert', $info);
+                            $subject = get_string('emailnonstudentsubject', 'customcert', $info);
                             $message = $textrenderer->render($renderable);
                             $messagehtml = $htmlrenderer->render($renderable);
 
                             $emailuser = new \stdClass();
                             $emailuser->id = -1;
                             $emailuser->email = $email;
-                            email_to_user($emailuser, fullname($userfrom), html_entity_decode($subject), $message,
+                            email_to_user($emailuser, fullname($userfrom), $subject, $message, $messagehtml, $tempfile,
-                                $messagehtml, $tempfile, $filename);
+                                $filename);
                         }
                     }
                 }
 
                 // Set the field so that it is emailed.
-                $DB->set_field('htmlcert_issues', 'emailed', 1, array('id' => $user->issueid));
+                $DB->set_field('customcert_issues', 'emailed', 1, array('id' => $user->issueid));
             }
         }
     }
 }
-

classes/template.php

@@ -15,27 +15,22 @@
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * Class represents a htmlcert template.
+ * Class represents a customcert template.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2021-2022 Kumi Systems e.U. <office@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert;
+namespace mod_customcert;
-
-require_once(__DIR__ . "/../vendor/autoload.php");
-require_once($CFG->dirroot.'/user/profile/lib.php');
-
-use mikehaertl\wkhtmlto\Pdf;
 
 defined('MOODLE_INTERNAL') || die();
 
 /**
- * Class represents a htmlcert template.
+ * Class represents a customcert template.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2021-2022 Kumi Systems e.U. <office@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class template {
@@ -55,8 +50,6 @@ class template {
      */
     protected $contextid;
 
-    protected $html;
-
     /**
      * The constructor.
      *
@@ -66,7 +59,6 @@ class template {
         $this->id = $template->id;
         $this->name = $template->name;
         $this->contextid = $template->contextid;
-        $this->html = $template->html;
     }
 
     /**
@@ -80,10 +72,74 @@ class template {
         $savedata = new \stdClass();
         $savedata->id = $this->id;
         $savedata->name = $data->name;
-        $savedata->html = $data->html ?: $this->html;
         $savedata->timemodified = time();
 
-        $DB->update_record('htmlcert_templates', $savedata);
+        $DB->update_record('customcert_templates', $savedata);
+    }
+
+    /**
+     * Handles adding another page to the template.
+     *
+     * @return int the id of the page
+     */
+    public function add_page() {
+        global $DB;
+
+        // Set the page number to 1 to begin with.
+        $sequence = 1;
+        // Get the max page number.
+        $sql = "SELECT MAX(sequence) as maxpage
+                  FROM {customcert_pages} cp
+                 WHERE cp.templateid = :templateid";
+        if ($maxpage = $DB->get_record_sql($sql, array('templateid' => $this->id))) {
+            $sequence = $maxpage->maxpage + 1;
+        }
+
+        // New page creation.
+        $page = new \stdClass();
+        $page->templateid = $this->id;
+        $page->width = '210';
+        $page->height = '297';
+        $page->sequence = $sequence;
+        $page->timecreated = time();
+        $page->timemodified = $page->timecreated;
+
+        // Insert the page.
+        return $DB->insert_record('customcert_pages', $page);
+    }
+
+    /**
+     * Handles saving page data.
+     *
+     * @param \stdClass $data the template data
+     */
+    public function save_page($data) {
+        global $DB;
+
+        // Set the time to a variable.
+        $time = time();
+
+        // Get the existing pages and save the page data.
+        if ($pages = $DB->get_records('customcert_pages', array('templateid' => $data->tid))) {
+            // Loop through existing pages.
+            foreach ($pages as $page) {
+                // Get the name of the fields we want from the form.
+                $width = 'pagewidth_' . $page->id;
+                $height = 'pageheight_' . $page->id;
+                $leftmargin = 'pageleftmargin_' . $page->id;
+                $rightmargin = 'pagerightmargin_' . $page->id;
+                // Create the page data to update the DB with.
+                $p = new \stdClass();
+                $p->id = $page->id;
+                $p->width = $data->$width;
+                $p->height = $data->$height;
+                $p->leftmargin = $data->$leftmargin;
+                $p->rightmargin = $data->$rightmargin;
+                $p->timemodified = $time;
+                // Update the page.
+                $DB->update_record('customcert_pages', $p);
+            }
+        }
     }
 
     /**
@@ -94,13 +150,101 @@ class template {
     public function delete() {
         global $DB;
 
-        if (!$DB->delete_records('htmlcert_templates', array('id' => $this->id))) {
+        // Delete the elements.
+        $sql = "SELECT e.*
+                  FROM {customcert_elements} e
+            INNER JOIN {customcert_pages} p
+                    ON e.pageid = p.id
+                 WHERE p.templateid = :templateid";
+        if ($elements = $DB->get_records_sql($sql, array('templateid' => $this->id))) {
+            foreach ($elements as $element) {
+                // Get an instance of the element class.
+                if ($e = \mod_customcert\element_factory::get_element_instance($element)) {
+                    $e->delete();
+                } else {
+                    // The plugin files are missing, so just remove the entry from the DB.
+                    $DB->delete_records('customcert_elements', array('id' => $element->id));
+                }
+            }
+        }
+
+        // Delete the pages.
+        if (!$DB->delete_records('customcert_pages', array('templateid' => $this->id))) {
+            return false;
+        }
+
+        // Now, finally delete the actual template.
+        if (!$DB->delete_records('customcert_templates', array('id' => $this->id))) {
             return false;
         }
 
         return true;
     }
 
+    /**
+     * Handles deleting a page from the template.
+     *
+     * @param int $pageid the template page
+     */
+    public function delete_page($pageid) {
+        global $DB;
+
+        // Get the page.
+        $page = $DB->get_record('customcert_pages', array('id' => $pageid), '*', MUST_EXIST);
+
+        // Delete this page.
+        $DB->delete_records('customcert_pages', array('id' => $page->id));
+
+        // The element may have some extra tasks it needs to complete to completely delete itself.
+        if ($elements = $DB->get_records('customcert_elements', array('pageid' => $page->id))) {
+            foreach ($elements as $element) {
+                // Get an instance of the element class.
+                if ($e = \mod_customcert\element_factory::get_element_instance($element)) {
+                    $e->delete();
+                } else {
+                    // The plugin files are missing, so just remove the entry from the DB.
+                    $DB->delete_records('customcert_elements', array('id' => $element->id));
+                }
+            }
+        }
+
+        // Now we want to decrease the page number values of
+        // the pages that are greater than the page we deleted.
+        $sql = "UPDATE {customcert_pages}
+                   SET sequence = sequence - 1
+                 WHERE templateid = :templateid
+                   AND sequence > :sequence";
+        $DB->execute($sql, array('templateid' => $this->id, 'sequence' => $page->sequence));
+    }
+
+    /**
+     * Handles deleting an element from the template.
+     *
+     * @param int $elementid the template page
+     */
+    public function delete_element($elementid) {
+        global $DB;
+
+        // Ensure element exists and delete it.
+        $element = $DB->get_record('customcert_elements', array('id' => $elementid), '*', MUST_EXIST);
+
+        // Get an instance of the element class.
+        if ($e = \mod_customcert\element_factory::get_element_instance($element)) {
+            $e->delete();
+        } else {
+            // The plugin files are missing, so just remove the entry from the DB.
+            $DB->delete_records('customcert_elements', array('id' => $elementid));
+        }
+
+        // Now we want to decrease the sequence numbers of the elements
+        // that are greater than the element we deleted.
+        $sql = "UPDATE {customcert_elements}
+                   SET sequence = sequence - 1
+                 WHERE pageid = :pageid
+                   AND sequence > :sequence";
+        $DB->execute($sql, array('pageid' => $element->pageid, 'sequence' => $element->sequence));
+    }
+
     /**
      * Generate the PDF for the template.
      *
@@ -109,8 +253,8 @@ class template {
      * @param bool $return Do we want to return the contents of the PDF?
      * @return string|void Can return the PDF in string format if specified.
      */
-    public function generate_pdf(bool $preview = false, int $userid = null, bool $return = false) {
+    public function generate_pdf($preview = false, $userid = null, $return = false) {
-        global $CFG, $DB, $USER, $SITE;
+        global $CFG, $DB, $USER;
 
         if (empty($userid)) {
             $user = $USER;
@@ -118,72 +262,65 @@ class template {
             $user = \core_user::get_user($userid);
         }
 
-	profile_load_data($user);
+        require_once($CFG->libdir . '/pdflib.php');
 
-        $htmlcert = $DB->get_record('htmlcert', ['templateid' => $this->id]);
+        // Get the pages for the template, there should always be at least one page for each template.
+        if ($pages = $DB->get_records('customcert_pages', array('templateid' => $this->id), 'sequence ASC')) {
+            // Create the pdf object.
+            $pdf = new \pdf();
 
-        $pdf = new Pdf(array(
+            // If the template belongs to a certificate then we need to check what permissions we set for it.
-            "disable-smart-shrinking",
+            if ($protection = $DB->get_field('customcert', 'protection', array('templateid' => $this->id))) {
-            "margin-bottom" => "0",
+                if (!empty($protection)) {
-            "margin-right" => "0",
+                    $protection = explode(', ', $protection);
-            "margin-left" => "0",
+                    $pdf->SetProtection($protection);
-            "margin-top" => "0"
-        ));
-
-        $html = $this->html;
-
-        $context = \context_user::instance($user->id);
-        $fs = get_file_storage();
-        $files = $fs->get_area_files($context->id, 'user', 'icon', 0);
-
-        $file = null;
-
-        $content = "";
-        foreach ($files as $filefound) {
-            if (!$filefound->is_directory()) {
-                $file = $filefound;
-                break;
                 }
             }
 
-        if ($file) {
+            $pdf->setPrintHeader(false);
-            $location = make_request_directory() . '/target';
+            $pdf->setPrintFooter(false);
-            $content = $file->get_content();
+            $pdf->SetTitle($this->name);
+            $pdf->SetAutoPageBreak(true, 0);
+            // Remove full-stop at the end, if it exists, to avoid "..pdf" being created and being filtered by clean_filename.
+            $filename = rtrim($this->name, '.');
+
+            // This is the logic the TCPDF library uses when processing the name. This makes names
+            // such as 'الشهادة' become empty, so set a default name in these cases.
+            $filename = preg_replace('/[\s]+/', '_', $filename);
+            $filename = preg_replace('/[^a-zA-Z0-9_\.-]/', '', $filename);
+
+            if (empty($filename)) {
+                $filename = get_string('certificate', 'customcert');
             }
 
-        $html = str_replace("__PROFILEPIC__", 'data: ' . mime_content_type($file) . ';base64,' . $content, $html);
+            $filename = clean_filename($filename . '.pdf');
-
+            // Loop through the pages and display their content.
-        $html = str_replace("__NAME__", $user->firstname . " " . $user->lastname, $html);
+            foreach ($pages as $page) {
-
+                // Add the page to the PDF.
-        if ($preview) {
+                if ($page->width > $page->height) {
-            $code = \mod_htmlcert\certificate::generate_code();
+                    $orientation = 'L';
                 } else {
-            $issue = $DB->get_record('htmlcert_issues', array('userid' => $user->id, 'htmlcertid' => $htmlcert->id),
+                    $orientation = 'P';
-                '*', IGNORE_MULTIPLE);
+                }
-            $code = $issue->code;
+                $pdf->AddPage($orientation, array($page->width, $page->height));
+                $pdf->SetMargins($page->leftmargin, 0, $page->rightmargin);
+                // Get the elements for the page.
+                if ($elements = $DB->get_records('customcert_elements', array('pageid' => $page->id), 'sequence ASC')) {
+                    // Loop through and display.
+                    foreach ($elements as $element) {
+                        // Get an instance of the element class.
+                        if ($e = \mod_customcert\element_factory::get_element_instance($element)) {
+                            $e->render($pdf, $preview, $user);
+                        }
+                    }
+                }
             }
-
-        $html = str_replace("__CERTNUM__", $code, $html);
-
-        $courseid = $htmlcert->course ?: $SITE->id;
-
-        $course = get_course($courseid);
-        $coursename = $course->fullname;
-
-        $html = str_replace("__COURSE__", $coursename, $html);
-
-        $date = $issue->timecreated;
-
-        $html = str_replace("__DATE__", userdate($date, '%B %d, %Y'), $html);
-
-        $html = str_replace("__PIN__", $user->username, $html);
-
-        $pdf->addPage($html);
-        $pdf->send();
-        die($pdf->getError());
 
             if ($return) {
-            return $pdf->toString();
+                return $pdf->Output('', 'S');
+            }
+
+            $pdf->Output($filename, 'I');
         }
     }
 
@@ -195,10 +332,78 @@ class template {
     public function copy_to_template($copytotemplateid) {
         global $DB;
 
-        $copytotemplate = $DB->get_record('htmlcert_templates', array('id' => $copytotemplateid));
+        // Get the pages for the template, there should always be at least one page for each template.
-        $copytotemplate->html = $this->html;
+        if ($templatepages = $DB->get_records('customcert_pages', array('templateid' => $this->id))) {
-        $DB->update_record('htmlcert_templates', $copytotemplate);
+            // Loop through the pages.
+            foreach ($templatepages as $templatepage) {
+                $page = clone($templatepage);
+                $page->templateid = $copytotemplateid;
+                $page->timecreated = time();
+                $page->timemodified = $page->timecreated;
+                // Insert into the database.
+                $page->id = $DB->insert_record('customcert_pages', $page);
+                // Now go through the elements we want to load.
+                if ($templateelements = $DB->get_records('customcert_elements', array('pageid' => $templatepage->id))) {
+                    foreach ($templateelements as $templateelement) {
+                        $element = clone($templateelement);
+                        $element->pageid = $page->id;
+                        $element->timecreated = time();
+                        $element->timemodified = $element->timecreated;
+                        // Ok, now we want to insert this into the database.
+                        $element->id = $DB->insert_record('customcert_elements', $element);
+                        // Load any other information the element may need to for the template.
+                        if ($e = \mod_customcert\element_factory::get_element_instance($element)) {
+                            if (!$e->copy_element($templateelement)) {
+                                // Failed to copy - delete the element.
+                                $e->delete();
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
 
+    /**
+     * Handles moving an item on a template.
+     *
+     * @param string $itemname the item we are moving
+     * @param int $itemid the id of the item
+     * @param string $direction the direction
+     */
+    public function move_item($itemname, $itemid, $direction) {
+        global $DB;
+
+        $table = 'customcert_';
+        if ($itemname == 'page') {
+            $table .= 'pages';
+        } else { // Must be an element.
+            $table .= 'elements';
+        }
+
+        if ($moveitem = $DB->get_record($table, array('id' => $itemid))) {
+            // Check which direction we are going.
+            if ($direction == 'up') {
+                $sequence = $moveitem->sequence - 1;
+            } else { // Must be down.
+                $sequence = $moveitem->sequence + 1;
+            }
+
+            // Get the item we will be swapping with. Make sure it is related to the same template (if it's
+            // a page) or the same page (if it's an element).
+            if ($itemname == 'page') {
+                $params = array('templateid' => $moveitem->templateid);
+            } else { // Must be an element.
+                $params = array('pageid' => $moveitem->pageid);
+            }
+            $swapitem = $DB->get_record($table, $params + array('sequence' => $sequence));
+        }
+
+        // Check that there is an item to move, and an item to swap it with.
+        if ($moveitem && !empty($swapitem)) {
+            $DB->set_field($table, 'sequence', $swapitem->sequence, array('id' => $moveitem->id));
+            $DB->set_field($table, 'sequence', $moveitem->sequence, array('id' => $swapitem->id));
+        }
     }
 
     /**
@@ -219,10 +424,6 @@ class template {
         return $this->name;
     }
 
-    public function get_html() {
-        return $this->html;
-        }    
-
     /**
      * Returns the context id.
      *
@@ -249,7 +450,7 @@ class template {
     public function get_cm() {
         $context = $this->get_context();
         if ($context->contextlevel === CONTEXT_MODULE) {
-            return get_coursemodule_from_id('htmlcert', $context->instanceid, 0, false, MUST_EXIST);
+            return get_coursemodule_from_id('customcert', $context->instanceid, 0, false, MUST_EXIST);
         }
 
         return null;
@@ -261,7 +462,7 @@ class template {
      * @throws \required_capability_exception if the user does not have the necessary capabilities (ie. Fred)
      */
     public function require_manage() {
-        require_capability('mod/htmlcert:manage', $this->get_context());
+        require_capability('mod/customcert:manage', $this->get_context());
     }
 
     /**
@@ -269,7 +470,7 @@ class template {
      *
      * @param string $templatename the name of the template
      * @param int $contextid the context id
-     * @return \mod_htmlcert\template the template object
+     * @return \mod_customcert\template the template object
      */
     public static function create($templatename, $contextid) {
         global $DB;
@@ -279,8 +480,8 @@ class template {
         $template->contextid = $contextid;
         $template->timecreated = time();
         $template->timemodified = $template->timecreated;
-        $template->id = $DB->insert_record('htmlcert_templates', $template);
+        $template->id = $DB->insert_record('customcert_templates', $template);
 
-        return new \mod_htmlcert\template($template);
+        return new \mod_customcert\template($template);
     }
 }

classes/upload_image_form.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -17,12 +17,12 @@
 /**
  * This file contains the class that handles uploading files.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
  * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert;
+namespace mod_customcert;
 
 defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
 
@@ -31,7 +31,7 @@ require_once($CFG->libdir.'/formslib.php');
 /**
  * Handles uploading files.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
  * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
@@ -51,23 +51,23 @@ class upload_image_form extends \moodleform {
             'maxbytes' => $CFG->maxbytes,
             'subdirs' => 1,
             'accepted_types' => 'image');
-        $mform->addElement('filemanager', 'htmlcertimage', get_string('uploadimage', 'htmlcert'), '',
+        $mform->addElement('filemanager', 'customcertimage', get_string('uploadimage', 'customcert'), '',
             $this->filemanageroptions);
 
         $this->add_action_buttons();
     }
 
     /**
-     * Fill in the current page data for this htmlcert.
+     * Fill in the current page data for this customcert.
      */
     public function definition_after_data() {
         $mform = $this->_form;
 
         // Editing existing instance - copy existing files into draft area.
-        $draftitemid = file_get_submitted_draft_itemid('htmlcertimage');
+        $draftitemid = file_get_submitted_draft_itemid('customcertimage');
-        file_prepare_draft_area($draftitemid, \context_system::instance()->id, 'mod_htmlcert', 'image', 0,
+        file_prepare_draft_area($draftitemid, \context_system::instance()->id, 'mod_customcert', 'image', 0,
             $this->filemanageroptions);
-        $element = $mform->getElement('htmlcertimage');
+        $element = $mform->getElement('customcertimage');
         $element->setValue($draftitemid);
     }
 }

classes/verify_certificate_form.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -17,12 +17,12 @@
 /**
  * This files contains the form for verifying a certificate.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
-namespace mod_htmlcert;
+namespace mod_customcert;
 
 defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
 
@@ -31,8 +31,8 @@ require_once($CFG->libdir . '/formslib.php');
 /**
  * The form for verifying a certificate.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class verify_certificate_form extends \moodleform {
@@ -43,10 +43,10 @@ class verify_certificate_form extends \moodleform {
     public function definition() {
         $mform =& $this->_form;
 
-        $mform->addElement('text', 'code', get_string('code', 'htmlcert'));
+        $mform->addElement('text', 'code', get_string('code', 'customcert'));
         $mform->setType('code', PARAM_ALPHANUM);
 
-        $mform->addElement('submit', 'verify', get_string('verify', 'htmlcert'));
+        $mform->addElement('submit', 'verify', get_string('verify', 'customcert'));
     }
 
     /**
@@ -60,7 +60,7 @@ class verify_certificate_form extends \moodleform {
         $errors = array();
 
         if ($data['code'] === '') {
-            $errors['code'] = get_string('invalidcode', 'htmlcert');
+            $errors['code'] = get_string('invalidcode', 'customcert');
         }
 
         return $errors;

composer.json

@@ -1,5 +1,10 @@
 {
+    "name": "mdjnelson/moodle-mod_customcert",
+    "type": "moodle-mod",
     "require": {
-        "mikehaertl/phpwkhtmltopdf": "^2.5"
+        "composer/installers": "~1.0"
+    },
+    "extra": {
+        "installer-name": "customcert"
     }
 }

composer.lock

@@ -1,160 +0,0 @@
-{
-    "_readme": [
-        "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
-        "This file is @generated automatically"
-    ],
-    "content-hash": "7f2a6587c80faa77c0f646f7f2ea6165",
-    "packages": [
-        {
-            "name": "mikehaertl/php-shellcommand",
-            "version": "1.6.4",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/mikehaertl/php-shellcommand.git",
-                "reference": "3488d7803df1e8f1a343d3d0ca452d527ad8d5e5"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/mikehaertl/php-shellcommand/zipball/3488d7803df1e8f1a343d3d0ca452d527ad8d5e5",
-                "reference": "3488d7803df1e8f1a343d3d0ca452d527ad8d5e5",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">= 5.3.0"
-            },
-            "require-dev": {
-                "phpunit/phpunit": ">4.0 <=9.4"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "mikehaertl\\shellcommand\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Michael Härtl",
-                    "email": "haertl.mike@gmail.com"
-                }
-            ],
-            "description": "An object oriented interface to shell commands",
-            "keywords": [
-                "shell"
-            ],
-            "support": {
-                "issues": "https://github.com/mikehaertl/php-shellcommand/issues",
-                "source": "https://github.com/mikehaertl/php-shellcommand/tree/1.6.4"
-            },
-            "time": "2021-03-17T06:54:33+00:00"
-        },
-        {
-            "name": "mikehaertl/php-tmpfile",
-            "version": "1.2.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/mikehaertl/php-tmpfile.git",
-                "reference": "70a5b70b17bc0d9666388e6a551ecc93d0b40a10"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/mikehaertl/php-tmpfile/zipball/70a5b70b17bc0d9666388e6a551ecc93d0b40a10",
-                "reference": "70a5b70b17bc0d9666388e6a551ecc93d0b40a10",
-                "shasum": ""
-            },
-            "require-dev": {
-                "php": ">=5.3.0",
-                "phpunit/phpunit": ">4.0 <=9.4"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "mikehaertl\\tmp\\": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Michael Härtl",
-                    "email": "haertl.mike@gmail.com"
-                }
-            ],
-            "description": "A convenience class for temporary files",
-            "keywords": [
-                "files"
-            ],
-            "support": {
-                "issues": "https://github.com/mikehaertl/php-tmpfile/issues",
-                "source": "https://github.com/mikehaertl/php-tmpfile/tree/1.2.1"
-            },
-            "time": "2021-03-01T18:26:25+00:00"
-        },
-        {
-            "name": "mikehaertl/phpwkhtmltopdf",
-            "version": "2.5.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/mikehaertl/phpwkhtmltopdf.git",
-                "reference": "17ee71341591415d942774eda2c98d8ba7ea9e90"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/mikehaertl/phpwkhtmltopdf/zipball/17ee71341591415d942774eda2c98d8ba7ea9e90",
-                "reference": "17ee71341591415d942774eda2c98d8ba7ea9e90",
-                "shasum": ""
-            },
-            "require": {
-                "mikehaertl/php-shellcommand": "^1.5.0",
-                "mikehaertl/php-tmpfile": "^1.2.1",
-                "php": ">=5.0.0"
-            },
-            "require-dev": {
-                "phpunit/phpunit": ">4.0 <9.4"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-4": {
-                    "mikehaertl\\wkhtmlto\\": "src"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Michael Haertl",
-                    "email": "haertl.mike@gmail.com"
-                }
-            ],
-            "description": "A slim PHP wrapper around wkhtmltopdf with an easy to use and clean OOP interface",
-            "homepage": "http://mikehaertl.github.com/phpwkhtmltopdf/",
-            "keywords": [
-                "pdf",
-                "wkhtmltoimage",
-                "wkhtmltopdf"
-            ],
-            "support": {
-                "issues": "https://github.com/mikehaertl/phpwkhtmltopdf/issues",
-                "source": "https://github.com/mikehaertl/phpwkhtmltopdf/tree/2.5.0"
-            },
-            "time": "2021-03-01T19:41:06+00:00"
-        }
-    ],
-    "packages-dev": [],
-    "aliases": [],
-    "minimum-stability": "stable",
-    "stability-flags": [],
-    "prefer-stable": false,
-    "prefer-lowest": false,
-    "platform": [],
-    "platform-dev": [],
-    "plugin-api-version": "2.0.0"
-}

db/access.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,10 +15,10 @@
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * htmlcert module capability definition
+ * Customcert module capability definition
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
@@ -26,7 +26,7 @@ defined('MOODLE_INTERNAL') || die();
 
 $capabilities = array(
 
-    'mod/htmlcert:addinstance' => array(
+    'mod/customcert:addinstance' => array(
         'riskbitmask' => RISK_XSS,
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
@@ -37,7 +37,7 @@ $capabilities = array(
         'clonepermissionsfrom' => 'moodle/course:manageactivities'
     ),
 
-    'mod/htmlcert:view' => array(
+    'mod/customcert:view' => array(
 
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
@@ -49,7 +49,7 @@ $capabilities = array(
         )
     ),
 
-    'mod/htmlcert:manage' => array(
+    'mod/customcert:manage' => array(
 
         'captype' => 'write',
         'contextlevel' => CONTEXT_MODULE,
@@ -60,7 +60,7 @@ $capabilities = array(
         )
     ),
 
-    'mod/htmlcert:receiveissue' => array(
+    'mod/customcert:receiveissue' => array(
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'archetypes' => array(
@@ -68,7 +68,7 @@ $capabilities = array(
         )
     ),
 
-    'mod/htmlcert:viewreport' => array(
+    'mod/customcert:viewreport' => array(
 
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
@@ -79,7 +79,7 @@ $capabilities = array(
         )
     ),
 
-    'mod/htmlcert:viewallcertificates' => array(
+    'mod/customcert:viewallcertificates' => array(
         'captype' => 'read',
         'contextlevel' => CONTEXT_SYSTEM,
         'archetypes' => array(
@@ -87,7 +87,7 @@ $capabilities = array(
         )
     ),
 
-    'mod/htmlcert:verifycertificate' => array(
+    'mod/customcert:verifycertificate' => array(
         'captype' => 'read',
         'contextlevel' => CONTEXT_MODULE,
         'archetypes' => array(
@@ -97,7 +97,7 @@ $capabilities = array(
         )
     ),
 
-    'mod/htmlcert:verifyallcertificates' => array(
+    'mod/customcert:verifyallcertificates' => array(
         'captype' => 'read',
         'contextlevel' => CONTEXT_SYSTEM,
         'archetypes' => array(
@@ -105,7 +105,7 @@ $capabilities = array(
         )
     ),
 
-    'mod/htmlcert:manageemailstudents' => array(
+    'mod/customcert:manageemailstudents' => array(
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'archetypes' => array(
@@ -115,7 +115,7 @@ $capabilities = array(
         'clonepermissionsfrom' => 'moodle/course:manageactivities'
     ),
 
-    'mod/htmlcert:manageemailteachers' => array(
+    'mod/customcert:manageemailteachers' => array(
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'archetypes' => array(
@@ -125,7 +125,7 @@ $capabilities = array(
         'clonepermissionsfrom' => 'moodle/course:manageactivities'
     ),
 
-    'mod/htmlcert:manageemailothers' => array(
+    'mod/customcert:manageemailothers' => array(
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'archetypes' => array(
@@ -135,7 +135,7 @@ $capabilities = array(
         'clonepermissionsfrom' => 'moodle/course:manageactivities'
     ),
 
-    'mod/htmlcert:manageverifyany' => array(
+    'mod/customcert:manageverifyany' => array(
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'archetypes' => array(
@@ -145,7 +145,7 @@ $capabilities = array(
         'clonepermissionsfrom' => 'moodle/course:manageactivities'
     ),
 
-    'mod/htmlcert:managerequiredtime' => array(
+    'mod/customcert:managerequiredtime' => array(
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'archetypes' => array(
@@ -155,7 +155,7 @@ $capabilities = array(
         'clonepermissionsfrom' => 'moodle/course:manageactivities'
     ),
 
-    'mod/htmlcert:manageprotection' => array(
+    'mod/customcert:manageprotection' => array(
         'captype' => 'write',
         'contextlevel' => CONTEXT_COURSE,
         'archetypes' => array(

db/install.xml

@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" ?>
-<XMLDB PATH="mod/htmlcert/db" VERSION="20170530" COMMENT="XMLDB file for Moodle mod/htmlcert"
+<XMLDB PATH="mod/customcert/db" VERSION="20170530" COMMENT="XMLDB file for Moodle mod/customcert"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:noNamespaceSchemaLocation="../../../lib/xmldb/xmldb.xsd"
 >
   <TABLES>
-    <TABLE NAME="htmlcert" COMMENT="Defines htmlcerts">
+    <TABLE NAME="customcert" COMMENT="Defines customcerts">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
         <FIELD NAME="course" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
@@ -14,7 +14,6 @@
         <FIELD NAME="introformat" TYPE="int" LENGTH="4" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="requiredtime" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="verifyany" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
-        <FIELD NAME="deliveryoption" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false"/>
         <FIELD NAME="emailstudents" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="emailteachers" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="emailothers" TYPE="text" NOTNULL="false" SEQUENCE="false"/>
@@ -23,36 +22,75 @@
         <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
       </FIELDS>
       <KEYS>
-        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for htmlcert"/>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for customcert"/>
-        <KEY NAME="template" TYPE="foreign" FIELDS="templateid" REFTABLE="htmlcert_templates" REFFIELDS="id"/>
+        <KEY NAME="template" TYPE="foreign" FIELDS="templateid" REFTABLE="customcert_templates" REFFIELDS="id"/>
       </KEYS>
     </TABLE>
-    <TABLE NAME="htmlcert_templates" COMMENT="Stores each htmlcert template">
+    <TABLE NAME="customcert_templates" COMMENT="Stores each customcert template">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
         <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false"/>
-        <FIELD NAME="html" TYPE="text" NOTNULL="false"/>
         <FIELD NAME="contextid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="References contextid."/>
         <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
       </FIELDS>
       <KEYS>
-        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for htmlcert_template"/>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for customcert_template"/>
         <KEY NAME="contextid" TYPE="foreign" FIELDS="contextid" REFTABLE="context" REFFIELDS="id"/>
       </KEYS>
     </TABLE>
-    <TABLE NAME="htmlcert_issues" COMMENT="Stores each issue of a htmlcert">
+    <TABLE NAME="customcert_issues" COMMENT="Stores each issue of a customcert">
       <FIELDS>
         <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
         <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
-        <FIELD NAME="htmlcertid" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="customcertid" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="code" TYPE="char" LENGTH="40" NOTNULL="false" SEQUENCE="false"/>
         <FIELD NAME="emailed" TYPE="int" LENGTH="1" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
         <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
       </FIELDS>
       <KEYS>
-        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for htmlcert_issues"/>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for customcert_issues"/>
-        <KEY NAME="htmlcert" TYPE="foreign" FIELDS="htmlcertid" REFTABLE="htmlcert" REFFIELDS="id"/>
+        <KEY NAME="customcert" TYPE="foreign" FIELDS="customcertid" REFTABLE="customcert" REFFIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="customcert_pages" COMMENT="Stores each page of a custom cert">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="templateid" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="width" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="height" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="leftmargin" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="rightmargin" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="sequence" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for customcert_pages"/>
+        <KEY NAME="template" TYPE="foreign" FIELDS="templateid" REFTABLE="customcert_templates" REFFIELDS="id"/>
+      </KEYS>
+    </TABLE>
+    <TABLE NAME="customcert_elements" COMMENT="Stores the elements for a given page">
+      <FIELDS>
+        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
+        <FIELD NAME="pageid" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="name" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="element" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
+        <FIELD NAME="data" TYPE="text" LENGTH="big" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="font" TYPE="char" LENGTH="255" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="fontsize" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="colour" TYPE="char" LENGTH="50" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="posx" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="posy" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="width" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="refpoint" TYPE="int" LENGTH="4" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="sequence" TYPE="int" LENGTH="10" NOTNULL="false" SEQUENCE="false"/>
+        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" DEFAULT="0" SEQUENCE="false"/>
+      </FIELDS>
+      <KEYS>
+        <KEY NAME="primary" TYPE="primary" FIELDS="id" COMMENT="Primary key for customcert_elements"/>
+        <KEY NAME="page" TYPE="foreign" FIELDS="pageid" REFTABLE="customcert_pages" REFFIELDS="id"/>
       </KEYS>
     </TABLE>
   </TABLES>

db/log.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -17,16 +17,16 @@
 /**
  * Definition of log events
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
 defined('MOODLE_INTERNAL') || die();
 
 $logs = array(
-    array('module' => 'htmlcert', 'action' => 'view', 'mtable' => 'htmlcert', 'field' => 'name'),
+    array('module' => 'customcert', 'action' => 'view', 'mtable' => 'customcert', 'field' => 'name'),
-    array('module' => 'htmlcert', 'action' => 'add', 'mtable' => 'htmlcert', 'field' => 'name'),
+    array('module' => 'customcert', 'action' => 'add', 'mtable' => 'customcert', 'field' => 'name'),
-    array('module' => 'htmlcert', 'action' => 'update', 'mtable' => 'htmlcert', 'field' => 'name'),
+    array('module' => 'customcert', 'action' => 'update', 'mtable' => 'customcert', 'field' => 'name'),
-    array('module' => 'htmlcert', 'action' => 'received', 'mtable' => 'htmlcert', 'field' => 'name'),
+    array('module' => 'customcert', 'action' => 'received', 'mtable' => 'customcert', 'field' => 'name'),
 );

db/mobile.php

@@ -17,38 +17,38 @@
 /**
  * Defines mobile handlers.
  *
- * @package   mod_htmlcert
+ * @package   mod_customcert
- * @copyright 2018 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright 2018 Mark Nelson <markn@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
 defined('MOODLE_INTERNAL') || die();
 
 $addons = [
-    'mod_htmlcert' => [ // Plugin identifier.
+    'mod_customcert' => [ // Plugin identifier.
         'handlers' => [ // Different places where the plugin will display content.
             'issueview' => [ // Handler unique name.
                 'displaydata' => [
-                    'icon' => $CFG->wwwroot . '/mod/htmlcert/pix/icon.png',
+                    'icon' => $CFG->wwwroot . '/mod/customcert/pix/icon.png',
-                    'class' => 'core-course-module-htmlcert-handler',
+                    'class' => 'core-course-module-customcert-handler',
                 ],
                 'delegate' => 'CoreCourseModuleDelegate', // Delegate (where to display the link to the plugin).
-                'method' => 'mobile_view_activity', // Main function in \mod_htmlcert\output\mobile.
+                'method' => 'mobile_view_activity', // Main function in \mod_customcert\output\mobile.
                 'styles' => [
-                    'url' => '/mod/htmlcert/mobile/styles.css',
+                    'url' => '/mod/customcert/mobile/styles.css',
                     'version' => 1
                 ]
             ]
         ],
         'lang' => [ // Language strings that are used in all the handlers.
-            ['deleteissueconfirm', 'htmlcert'],
+            ['deleteissueconfirm', 'customcert'],
-            ['gethtmlcert', 'htmlcert'],
+            ['getcustomcert', 'customcert'],
-            ['listofissues', 'htmlcert'],
+            ['listofissues', 'customcert'],
             ['nothingtodisplay', 'moodle'],
-            ['notissued', 'htmlcert'],
+            ['notissued', 'customcert'],
-            ['pluginname', 'htmlcert'],
+            ['pluginname', 'customcert'],
-            ['receiveddate', 'htmlcert'],
+            ['receiveddate', 'customcert'],
-            ['requiredtimenotmet', 'htmlcert'],
+            ['requiredtimenotmet', 'customcert'],
             ['selectagroup', 'moodle']
         ]
     ]

db/services.php

@@ -15,18 +15,18 @@
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * Web service for mod htmlcert.
+ * Web service for mod customcert.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2016 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
 defined('MOODLE_INTERNAL') || die();
 
 $functions = array(
-    'mod_htmlcert_delete_issue' => array(
+    'mod_customcert_delete_issue' => array(
-        'classname'   => 'mod_htmlcert\external',
+        'classname'   => 'mod_customcert\external',
         'methodname'  => 'delete_issue',
         'classpath'   => '',
         'description' => 'Delete an issue for a certificate',
@@ -34,16 +34,16 @@ $functions = array(
         'ajax'        => true,
         'services'    => array(MOODLE_OFFICIAL_MOBILE_SERVICE)
     ),
-    'mod_htmlcert_save_element' => array(
+    'mod_customcert_save_element' => array(
-        'classname'   => 'mod_htmlcert\external',
+        'classname'   => 'mod_customcert\external',
         'methodname'  => 'save_element',
         'classpath'   => '',
         'description' => 'Saves data for an element',
         'type'        => 'write',
         'ajax'        => true
     ),
-    'mod_htmlcert_get_element_html' => array(
+    'mod_customcert_get_element_html' => array(
-        'classname'   => 'mod_htmlcert\external',
+        'classname'   => 'mod_customcert\external',
         'methodname'  => 'get_element_html',
         'classpath'   => '',
         'description' => 'Returns the HTML to display for an element',

db/subplugins.php

@@ -0,0 +1,27 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Definition of sub-plugins.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+$subplugins = array('customcertelement' => 'mod/customcert/element');

db/tasks.php

@@ -15,11 +15,11 @@
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * Definition of htmlcert scheduled tasks.
+ * Definition of customcert scheduled tasks.
  *
- * @package   mod_htmlcert
+ * @package   mod_customcert
  * @category  task
- * @copyright 2017 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright 2017 Mark Nelson <markn@moodle.com>
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
@@ -27,7 +27,7 @@ defined('MOODLE_INTERNAL') || die();
 
 $tasks = array(
     array(
-        'classname' => 'mod_htmlcert\task\email_certificate_task',
+        'classname' => 'mod_customcert\task\email_certificate_task',
         'blocking' => 0,
         'minute' => '*',
         'hour' => '*',

db/upgrade.php

@@ -0,0 +1,170 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Customcert module upgrade code.
+ *
+ * @package    mod_customcert
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die;
+
+/**
+ * Customcert module upgrade code.
+ *
+ * @param int $oldversion the version we are upgrading from
+ * @return bool always true
+ */
+function xmldb_customcert_upgrade($oldversion) {
+    global $DB;
+
+    $dbman = $DB->get_manager();
+
+    if ($oldversion < 2016120503) {
+
+        $table = new xmldb_table('customcert_templates');
+        $field = new xmldb_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'id');
+        $dbman->change_field_precision($table, $field);
+
+        // Savepoint reached.
+        upgrade_mod_savepoint(true, 2016120503, 'customcert');
+    }
+
+    if ($oldversion < 2016120505) {
+        $table = new xmldb_table('customcert');
+        $field = new xmldb_field('emailstudents', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'requiredtime');
+
+        // Conditionally launch add field.
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+        }
+
+        $field = new xmldb_field('emailteachers', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'emailstudents');
+
+        // Conditionally launch add field.
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+        }
+
+        $field = new xmldb_field('emailothers', XMLDB_TYPE_TEXT, null, null, null, null, null, 'emailteachers');
+
+        // Conditionally launch add field.
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+        }
+
+        $table = new xmldb_table('customcert_issues');
+        $field = new xmldb_field('emailed', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0', 'code');
+
+        // Conditionally launch add field.
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+        }
+
+        // Savepoint reached.
+        upgrade_mod_savepoint(true, 2016120505, 'customcert');
+    }
+
+    if ($oldversion < 2017050501) {
+        // Remove any duplicate rows from customcert issue table.
+        // This SQL fetches the id of those records which have duplicate customcert issues.
+        // This doesn't return the first issue.
+        $fromclause = "FROM (
+                             SELECT min(id) AS minid, userid, customcertid
+                               FROM {customcert_issues}
+                           GROUP BY userid, customcertid
+                            ) minid
+                       JOIN {customcert_issues} ci
+                         ON ci.userid = minid.userid
+                        AND ci.customcertid = minid.customcertid
+                        AND ci.id > minid.minid";
+
+        // Get the records themselves.
+        $getduplicatessql = "SELECT ci.id $fromclause ORDER BY minid";
+        if ($records = $DB->get_records_sql($getduplicatessql)) {
+            // Delete them.
+            $ids = implode(',', array_keys($records));
+            $DB->delete_records_select('customcert_issues', "id IN ($ids)");
+        }
+
+        // Savepoint reached.
+        upgrade_mod_savepoint(true, 2017050501, 'customcert');
+    }
+
+    if ($oldversion < 2017050502) {
+        // Add column for new 'verifycertificateanyone' setting.
+        $table = new xmldb_table('customcert');
+        $field = new xmldb_field('verifyany', XMLDB_TYPE_INTEGER, '1', null, XMLDB_NOTNULL, null, '0',
+            'requiredtime');
+
+        // Conditionally launch add field.
+        if (!$dbman->field_exists($table, $field)) {
+            $dbman->add_field($table, $field);
+        }
+
+        // Savepoint reached.
+        upgrade_mod_savepoint(true, 2017050502, 'customcert');
+    }
+
+    if ($oldversion < 2017050506) {
+        $table = new xmldb_table('customcert_elements');
+        $field = new xmldb_field('size');
+
+        // Rename column as it is a reserved word in Oracle.
+        if ($dbman->field_exists($table, $field)) {
+            $field->set_attributes(XMLDB_TYPE_INTEGER, '10', null, null, null, null, 'font');
+            $dbman->rename_field($table, $field, 'fontsize');
+        }
+
+        // Savepoint reached.
+        upgrade_mod_savepoint(true, 2017050506, 'customcert');
+    }
+
+    if ($oldversion < 2018051705) {
+        $table = new xmldb_table('customcert_elements');
+        $field = new xmldb_field('element', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null, 'name');
+
+        // Alter the 'element' column to be characters, rather than text.
+        $dbman->change_field_type($table, $field);
+
+        // Savepoint reached.
+        upgrade_mod_savepoint(true, 2018051705, 'customcert');
+    }
+
+    if ($oldversion < 2019052003) {
+        $table = new xmldb_table('customcert');
+        $index = new xmldb_index('templateid', XMLDB_INDEX_UNIQUE, ['templateid']);
+        if ($dbman->index_exists($table, $index)) {
+            $dbman->drop_index($table, $index);
+        }
+        $key = new xmldb_key('templateid', XMLDB_KEY_FOREIGN, ['templateid'], 'customcert_templates', ['id']);
+        $dbman->add_key($table, $key);
+
+        $table = new xmldb_table('customcert_pages');
+        $index = new xmldb_index('templateid', XMLDB_INDEX_UNIQUE, ['templateid']);
+        if ($dbman->index_exists($table, $index)) {
+            $dbman->drop_index($table, $index);
+        }
+        $key = new xmldb_key('templateid', XMLDB_KEY_FOREIGN, ['templateid'], 'customcert_templates', ['id']);
+        $dbman->add_key($table, $key);
+
+        upgrade_mod_savepoint(true, 2019052003, 'customcert');
+    }
+
+    return true;
+}

edit.php

@@ -1,5 +1,5 @@
 <?php
-// This file is part of the htmlcert module for Moodle - http://moodle.org/
+// This file is part of the customcert module for Moodle - http://moodle.org/
 //
 // Moodle is free software: you can redistribute it and/or modify
 // it under the terms of the GNU General Public License as published by
@@ -15,10 +15,10 @@
 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
 
 /**
- * Edit the htmlcert settings.
+ * Edit the customcert settings.
  *
- * @package    mod_htmlcert
+ * @package    mod_customcert
- * @copyright  2013 Mark Nelson <markn@moodle.com>, 2021 Klaus-Uwe Mitterer <kumitterer@kumi.systems>
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 
@@ -34,26 +34,26 @@ $confirm = optional_param('confirm', 0, PARAM_INT);
 // Edit an existing template.
 if ($tid) {
     // Create the template object.
-    $template = $DB->get_record('htmlcert_templates', array('id' => $tid), '*', MUST_EXIST);
+    $template = $DB->get_record('customcert_templates', array('id' => $tid), '*', MUST_EXIST);
-    $template = new \mod_htmlcert\template($template);
+    $template = new \mod_customcert\template($template);
     // Set the context.
     $contextid = $template->get_contextid();
     // Set the page url.
-    $pageurl = new moodle_url('/mod/htmlcert/edit.php', array('tid' => $tid));
+    $pageurl = new moodle_url('/mod/customcert/edit.php', array('tid' => $tid));
 } else { // Adding a new template.
     // Need to supply the contextid.
     $contextid = required_param('contextid', PARAM_INT);
     // Set the page url.
-    $pageurl = new moodle_url('/mod/htmlcert/edit.php', array('contextid' => $contextid));
+    $pageurl = new moodle_url('/mod/customcert/edit.php', array('contextid' => $contextid));
 }
 
 $context = context::instance_by_id($contextid);
 if ($context->contextlevel == CONTEXT_MODULE) {
-    $cm = get_coursemodule_from_id('htmlcert', $context->instanceid, 0, false, MUST_EXIST);
+    $cm = get_coursemodule_from_id('customcert', $context->instanceid, 0, false, MUST_EXIST);
     require_login($cm->course, false, $cm);
 
-    $htmlcert = $DB->get_record('htmlcert', ['id' => $cm->instance], '*', MUST_EXIST);
+    $customcert = $DB->get_record('customcert', ['id' => $cm->instance], '*', MUST_EXIST);
-    $title = $htmlcert->name;
+    $title = $customcert->name;
     $heading = format_string($title);
 } else {
     require_login();
@@ -61,40 +61,173 @@ if ($context->contextlevel == CONTEXT_MODULE) {
     $heading = $title;
 }
 
-require_capability('mod/htmlcert:manage', $context);
+require_capability('mod/customcert:manage', $context);
 
 // Set up the page.
-\mod_htmlcert\page_helper::page_setup($pageurl, $context, $title);
+\mod_customcert\page_helper::page_setup($pageurl, $context, $title);
 
 if ($context->contextlevel == CONTEXT_SYSTEM) {
     // We are managing a template - add some navigation.
-    $PAGE->navbar->add(get_string('managetemplates', 'htmlcert'),
+    $PAGE->navbar->add(get_string('managetemplates', 'customcert'),
-        new moodle_url('/mod/htmlcert/manage_templates.php'));
+        new moodle_url('/mod/customcert/manage_templates.php'));
     if (!$tid) {
-        $PAGE->navbar->add(get_string('edithtmlcert', 'htmlcert'));
+        $PAGE->navbar->add(get_string('editcustomcert', 'customcert'));
     } else {
-        $PAGE->navbar->add(get_string('edithtmlcert', 'htmlcert'),
+        $PAGE->navbar->add(get_string('editcustomcert', 'customcert'),
-            new moodle_url('/mod/htmlcert/edit.php', ['tid' => $tid]));
+            new moodle_url('/mod/customcert/edit.php', ['tid' => $tid]));
     }
 }
 
+// Flag to determine if we are deleting anything.
+$deleting = false;
+
 if ($tid) {
-    $mform = new \mod_htmlcert\edit_form($pageurl, array('tid' => $tid));
+    if ($action && confirm_sesskey()) {
+        switch ($action) {
+            case 'pmoveup' :
+                $template->move_item('page', $actionid, 'up');
+                break;
+            case 'pmovedown' :
+                $template->move_item('page', $actionid, 'down');
+                break;
+            case 'emoveup' :
+                $template->move_item('element', $actionid, 'up');
+                break;
+            case 'emovedown' :
+                $template->move_item('element', $actionid, 'down');
+                break;
+            case 'addpage' :
+                $template->add_page();
+                $url = new \moodle_url('/mod/customcert/edit.php', array('tid' => $tid));
+                redirect($url);
+                break;
+            case 'deletepage' :
+                if (!empty($confirm)) { // Check they have confirmed the deletion.
+                    $template->delete_page($actionid);
+                    $url = new \moodle_url('/mod/customcert/edit.php', array('tid' => $tid));
+                    redirect($url);
+                } else {
+                    // Set deletion flag to true.
+                    $deleting = true;
+                    // Create the message.
+                    $message = get_string('deletepageconfirm', 'customcert');
+                    // Create the link options.
+                    $nourl = new moodle_url('/mod/customcert/edit.php', array('tid' => $tid));
+                    $yesurl = new moodle_url('/mod/customcert/edit.php',
+                        array(
+                            'tid' => $tid,
+                            'action' => 'deletepage',
+                            'aid' => $actionid,
+                            'confirm' => 1,
+                            'sesskey' => sesskey()
+                        )
+                    );
+                }
+                break;
+            case 'deleteelement' :
+                if (!empty($confirm)) { // Check they have confirmed the deletion.
+                    $template->delete_element($actionid);
+                } else {
+                    // Set deletion flag to true.
+                    $deleting = true;
+                    // Create the message.
+                    $message = get_string('deleteelementconfirm', 'customcert');
+                    // Create the link options.
+                    $nourl = new moodle_url('/mod/customcert/edit.php', array('tid' => $tid));
+                    $yesurl = new moodle_url('/mod/customcert/edit.php',
+                        array(
+                            'tid' => $tid,
+                            'action' => 'deleteelement',
+                            'aid' => $actionid,
+                            'confirm' => 1,
+                            'sesskey' => sesskey()
+                        )
+                    );
+                }
+                break;
+        }
+    }
+}
+
+// Check if we are deleting either a page or an element.
+if ($deleting) {
+    // Show a confirmation page.
+    $PAGE->navbar->add(get_string('deleteconfirm', 'customcert'));
+    echo $OUTPUT->header();
+    echo $OUTPUT->heading($heading);
+    echo $OUTPUT->confirm($message, $yesurl, $nourl);
+    echo $OUTPUT->footer();
+    exit();
+}
+
+if ($tid) {
+    $mform = new \mod_customcert\edit_form($pageurl, array('tid' => $tid));
     // Set the name for the form.
-    $mform->set_data(array('name' => $template->get_name(), 'html' => ''));
+    $mform->set_data(array('name' => $template->get_name()));
 } else {
-    $mform = new \mod_htmlcert\edit_form($pageurl);
+    $mform = new \mod_customcert\edit_form($pageurl);
 }
 
 if ($data = $mform->get_data()) {
     // If there is no id, then we are creating a template.
     if (!$tid) {
-        $template = \mod_htmlcert\template::create($data->name, $contextid);
+        $template = \mod_customcert\template::create($data->name, $contextid);
+
+        // Create a page for this template.
+        $pageid = $template->add_page();
+
+        // Associate all the data from the form to the newly created page.
+        $width = 'pagewidth_' . $pageid;
+        $height = 'pageheight_' . $pageid;
+        $leftmargin = 'pageleftmargin_' . $pageid;
+        $rightmargin = 'pagerightmargin_' . $pageid;
+        $rightmargin = 'pagerightmargin_' . $pageid;
+
+        $data->$width = $data->pagewidth_0;
+        $data->$height = $data->pageheight_0;
+        $data->$leftmargin = $data->pageleftmargin_0;
+        $data->$rightmargin = $data->pagerightmargin_0;
+
+        // We may also have clicked to add an element, so these need changing as well.
+        if (isset($data->element_0) && isset($data->addelement_0)) {
+            $element = 'element_' . $pageid;
+            $addelement = 'addelement_' . $pageid;
+            $data->$element = $data->element_0;
+            $data->$addelement = $data->addelement_0;
+
+            // Need to remove the temporary element and add element placeholders so we
+            // don't try add an element to the wrong page.
+            unset($data->element_0);
+            unset($data->addelement_0);
+        }
     }
 
     // Save any data for the template.
     $template->save($data);
 
+    // Save any page data.
+    $template->save_page($data);
+
+    // Loop through the data.
+    foreach ($data as $key => $value) {
+        // Check if they chose to add an element to a page.
+        if (strpos($key, 'addelement_') !== false) {
+            // Get the page id.
+            $pageid = str_replace('addelement_', '', $key);
+            // Get the element.
+            $element = "element_" . $pageid;
+            $element = $data->$element;
+            // Create the URL to redirect to to add this element.
+            $params = array();
+            $params['tid'] = $template->get_id();
+            $params['action'] = 'add';
+            $params['element'] = $element;
+            $params['pageid'] = $pageid;
+            $url = new moodle_url('/mod/customcert/edit_element.php', $params);
+            redirect($url);
+        }
+    }
+
     // Check if we want to preview this custom certificate.
     if (!empty($data->previewbtn)) {
         $template->generate_pdf(true);
@@ -102,7 +235,7 @@ if ($data = $mform->get_data()) {
     }
 
     // Redirect to the editing page to show form with recent updates.
-    $url = new moodle_url('/mod/htmlcert/edit.php', array('tid' => $template->get_id()));
+    $url = new moodle_url('/mod/customcert/edit.php', array('tid' => $template->get_id()));
     redirect($url);
 }
 
@@ -110,8 +243,8 @@ echo $OUTPUT->header();
 echo $OUTPUT->heading($heading);
 $mform->display();
 if ($tid && $context->contextlevel == CONTEXT_MODULE) {
-    $loadtemplateurl = new moodle_url('/mod/htmlcert/load_template.php', array('tid' => $tid));
+    $loadtemplateurl = new moodle_url('/mod/customcert/load_template.php', array('tid' => $tid));
-    $loadtemplateform = new \mod_htmlcert\load_template_form($loadtemplateurl, array('context' => $context), 'post',
+    $loadtemplateform = new \mod_customcert\load_template_form($loadtemplateurl, array('context' => $context), 'post',
         '', array('id' => 'loadtemplateform'));
     $loadtemplateform->display();
 }

edit_element.php

@@ -0,0 +1,108 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Edit a customcert element.
+ *
+ * @package    mod_customcert
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+require_once('../../config.php');
+
+$tid = required_param('tid', PARAM_INT);
+$action = required_param('action', PARAM_ALPHA);
+
+$template = $DB->get_record('customcert_templates', array('id' => $tid), '*', MUST_EXIST);
+
+// Set the template object.
+$template = new \mod_customcert\template($template);
+
+// Perform checks.
+if ($cm = $template->get_cm()) {
+    require_login($cm->course, false, $cm);
+} else {
+    require_login();
+}
+// Make sure the user has the required capabilities.
+$template->require_manage();
+
+if ($template->get_context()->contextlevel == CONTEXT_MODULE) {
+    $customcert = $DB->get_record('customcert', ['id' => $cm->instance], '*', MUST_EXIST);
+    $title = $customcert->name;
+    $heading = format_string($title);
+} else {
+    $title = $SITE->fullname;
+    $heading = $title;
+}
+
+if ($action == 'edit') {
+    // The id of the element must be supplied if we are currently editing one.
+    $id = required_param('id', PARAM_INT);
+    $element = $DB->get_record('customcert_elements', array('id' => $id), '*', MUST_EXIST);
+    $pageurl = new moodle_url('/mod/customcert/edit_element.php', array('id' => $id, 'tid' => $tid, 'action' => $action));
+} else { // Must be adding an element.
+    // We need to supply what element we want added to what page.
+    $pageid = required_param('pageid', PARAM_INT);
+    $element = new stdClass();
+    $element->element = required_param('element', PARAM_ALPHA);
+    $pageurl = new moodle_url('/mod/customcert/edit_element.php', array('tid' => $tid, 'element' => $element->element,
+        'pageid' => $pageid, 'action' => $action));
+}
+
+// Set up the page.
+\mod_customcert\page_helper::page_setup($pageurl, $template->get_context(), $title);
+
+// Additional page setup.
+if ($template->get_context()->contextlevel == CONTEXT_SYSTEM) {
+    $PAGE->navbar->add(get_string('managetemplates', 'customcert'),
+        new moodle_url('/mod/customcert/manage_templates.php'));
+}
+$PAGE->navbar->add(get_string('editcustomcert', 'customcert'), new moodle_url('/mod/customcert/edit.php',
+    array('tid' => $tid)));
+$PAGE->navbar->add(get_string('editelement', 'customcert'));
+
+$mform = new \mod_customcert\edit_element_form($pageurl, array('element' => $element));
+
+// Check if they cancelled.
+if ($mform->is_cancelled()) {
+    $url = new moodle_url('/mod/customcert/edit.php', array('tid' => $tid));
+    redirect($url);
+}
+
+if ($data = $mform->get_data()) {
+    // Set the id, or page id depending on if we are editing an element, or adding a new one.
+    if ($action == 'edit') {
+        $data->id = $id;
+    } else {
+        $data->pageid = $pageid;
+    }
+    // Set the element variable.
+    $data->element = $element->element;
+    // Get an instance of the element class.
+    if ($e = \mod_customcert\element_factory::get_element_instance($data)) {
+        $e->save_form_elements($data);
+    }
+
+    $url = new moodle_url('/mod/customcert/edit.php', array('tid' => $tid));
+    redirect($url);
+}
+
+echo $OUTPUT->header();
+echo $OUTPUT->heading($heading);
+$mform->display();
+echo $OUTPUT->footer();

element/bgimage/classes/element.php

@@ -0,0 +1,130 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the customcert element background image's core interaction API.
+ *
+ * @package    customcertelement_bgimage
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_bgimage;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The customcert element background image's core interaction API.
+ *
+ * @package    customcertelement_bgimage
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class element extends \customcertelement_image\element {
+
+    /**
+     * This function renders the form elements when adding a customcert element.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance
+     */
+    public function render_form_elements($mform) {
+        $mform->addElement('select', 'fileid', get_string('image', 'customcertelement_image'), self::get_images());
+        $mform->addElement('filemanager', 'customcertimage', get_string('uploadimage', 'customcert'), '',
+            $this->filemanageroptions);
+    }
+
+    /**
+     * Performs validation on the element values.
+     *
+     * @param array $data the submitted data
+     * @param array $files the submitted files
+     * @return array the validation errors
+     */
+    public function validate_form_elements($data, $files) {
+        // Array to return the errors.
+        return array();
+    }
+
+    /**
+     * Handles rendering the element on the pdf.
+     *
+     * @param \pdf $pdf the pdf object
+     * @param bool $preview true if it is a preview, false otherwise
+     * @param \stdClass $user the user we are rendering this for
+     */
+    public function render($pdf, $preview, $user) {
+        // If there is no element data, we have nothing to display.
+        if (empty($this->get_data())) {
+            return;
+        }
+
+        $imageinfo = json_decode($this->get_data());
+
+        // If there is no file, we have nothing to display.
+        if (empty($imageinfo->filename)) {
+            return;
+        }
+
+        if ($file = $this->get_file()) {
+            $location = make_request_directory() . '/target';
+            $file->copy_content_to($location);
+
+            // Set the image to the size of the PDF page.
+            $mimetype = $file->get_mimetype();
+            if ($mimetype == 'image/svg+xml') {
+                $pdf->ImageSVG($location, 0, 0, $pdf->getPageWidth(), $pdf->getPageHeight());
+            } else {
+                $pdf->Image($location, 0, 0, $pdf->getPageWidth(), $pdf->getPageHeight());
+            }
+        }
+    }
+
+    /**
+     * Render the element in html.
+     *
+     * This function is used to render the element when we are using the
+     * drag and drop interface to position it.
+     *
+     * @return string the html
+     */
+    public function render_html() {
+        global $DB;
+
+        // If there is no element data, we have nothing to display.
+        if (empty($this->get_data())) {
+            return '';
+        }
+
+        $imageinfo = json_decode($this->get_data());
+
+        // If there is no file, we have nothing to display.
+        if (empty($imageinfo->filename)) {
+            return '';
+        }
+
+        if ($file = $this->get_file()) {
+            $url = \moodle_url::make_pluginfile_url($file->get_contextid(), 'mod_customcert', 'image', $file->get_itemid(),
+                $file->get_filepath(), $file->get_filename());
+            // Get the page we are rendering this on.
+            $page = $DB->get_record('customcert_pages', array('id' => $this->get_pageid()), '*', MUST_EXIST);
+
+            // Set the image to the size of the page.
+            $style = 'width: ' . $page->width . 'mm; height: ' . $page->height . 'mm';
+            return \html_writer::tag('img', '', array('src' => $url, 'style' => $style));
+        }
+    }
+}
+

element/bgimage/classes/privacy/provider.php

@@ -0,0 +1,46 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy Subsystem implementation for customcertelement_bgimage.
+ *
+ * @package    customcertelement_bgimage
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_bgimage\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Privacy Subsystem for customcertelement_bgimage implementing null_provider.
+ *
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements \core_privacy\local\metadata\null_provider {
+
+    /**
+     * Get the language string identifier with the component's language
+     * file to explain why this plugin stores no data.
+     *
+     * @return  string
+     */
+    public static function get_reason() : string {
+        return 'privacy:metadata';
+    }
+}

element/bgimage/db/upgrade.php

@@ -0,0 +1,66 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Customcert background image element upgrade code.
+ *
+ * @package    customcertelement_bgimage
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die;
+
+/**
+ * Customcert background image element upgrade code.
+ *
+ * @param int $oldversion the version we are upgrading from
+ * @return bool always true
+ */
+function xmldb_customcertelement_bgimage_upgrade($oldversion) {
+    global $DB;
+
+    if ($oldversion < 2016120501) {
+        // Go through each 'image' element and update the file stored information.
+        if ($images = $DB->get_records_select('customcert_elements', $DB->sql_compare_text('element') . ' = \'bgimage\'')) {
+            // Create a file storage instance we are going to use to create pathname hashes.
+            $fs = get_file_storage();
+            // Go through and update the details.
+            foreach ($images as $image) {
+                // Get the current data we have stored for this element.
+                $elementinfo = json_decode($image->data);
+                if ($file = $fs->get_file_by_hash($elementinfo->pathnamehash)) {
+                    $arrtostore = array(
+                        'contextid' => $file->get_contextid(),
+                        'filearea' => $file->get_filearea(),
+                        'itemid' => $file->get_itemid(),
+                        'filepath' => $file->get_filepath(),
+                        'filename' => $file->get_filename(),
+                        'width' => (int) $elementinfo->width,
+                        'height' => (int) $elementinfo->height
+                    );
+                    $arrtostore = json_encode($arrtostore);
+                    $DB->set_field('customcert_elements', 'data', $arrtostore,  array('id' => $image->id));
+                }
+            }
+        }
+
+        // Savepoint reached.
+        upgrade_plugin_savepoint(true, 2016120501, 'customcertelement', 'bgimage');
+    }
+
+    return true;
+}

element/bgimage/lang/en/customcertelement_bgimage.php

@@ -0,0 +1,26 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Strings for component 'customcertelement_bgimage', language 'en'.
+ *
+ * @package    customcertelement_bgimage
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['pluginname'] = 'Background image';
+$string['privacy:metadata'] = 'The Background image plugin does not store any personal data.';

element/bgimage/version.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the version information for the background image plugin.
+ *
+ * @package    customcertelement_bgimage
+ * @copyright  2016 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+$plugin->version   = 2019052000; // The current module version (Date: YYYYMMDDXX).
+$plugin->requires  = 2019052000; // Requires this Moodle version (3.7).
+$plugin->component = 'customcertelement_bgimage';

element/border/classes/element.php

@@ -0,0 +1,126 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the customcert element border's core interaction API.
+ *
+ * @package    customcertelement_border
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_border;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The customcert element border's core interaction API.
+ *
+ * @package    customcertelement_border
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class element extends \mod_customcert\element {
+
+    /**
+     * This function renders the form elements when adding a customcert element.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance
+     */
+    public function render_form_elements($mform) {
+        // We want to define the width of the border.
+        $mform->addElement('text', 'width', get_string('width', 'customcertelement_border'), array('size' => 10));
+        $mform->setType('width', PARAM_INT);
+        $mform->addHelpButton('width', 'width', 'customcertelement_border');
+
+        // The only other thing to define is the colour we want the border to be.
+        \mod_customcert\element_helper::render_form_element_colour($mform);
+    }
+
+    /**
+     * Handles rendering the element on the pdf.
+     *
+     * @param \pdf $pdf the pdf object
+     * @param bool $preview true if it is a preview, false otherwise
+     * @param \stdClass $user the user we are rendering this for
+     */
+    public function render($pdf, $preview, $user) {
+        $colour = \TCPDF_COLORS::convertHTMLColorToDec($this->get_colour(), $colour);
+        $pdf->SetLineStyle(array('width' => $this->get_data(), 'color' => $colour));
+        $pdf->Line(0, 0, $pdf->getPageWidth(), 0);
+        $pdf->Line($pdf->getPageWidth(), 0, $pdf->getPageWidth(), $pdf->getPageHeight());
+        $pdf->Line(0, $pdf->getPageHeight(), $pdf->getPageWidth(), $pdf->getPageHeight());
+        $pdf->Line(0, 0, 0, $pdf->getPageHeight());
+    }
+
+    /**
+     * Render the element in html.
+     *
+     * This function is used to render the element when we are using the
+     * drag and drop interface to position it.
+     *
+     * @return string the html
+     */
+    public function render_html() {
+        return '';
+    }
+
+    /**
+     * Performs validation on the element values.
+     *
+     * @param array $data the submitted data
+     * @param array $files the submitted files
+     * @return array the validation errors
+     */
+    public function validate_form_elements($data, $files) {
+        // Array to return the errors.
+        $errors = array();
+
+        // Check if width is not set, or not numeric or less than 0.
+        if ((!isset($data['width'])) || (!is_numeric($data['width'])) || ($data['width'] <= 0)) {
+            $errors['width'] = get_string('invalidwidth', 'customcertelement_border');
+        }
+
+        // Validate the colour.
+        $errors += \mod_customcert\element_helper::validate_form_element_colour($data);
+
+        return $errors;
+    }
+
+    /**
+     * Sets the data on the form when editing an element.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance
+     */
+    public function definition_after_data($mform) {
+        if (!empty($this->get_data())) {
+            $element = $mform->getElement('width');
+            $element->setValue($this->get_data());
+        }
+        parent::definition_after_data($mform);
+    }
+
+    /**
+     * This will handle how form data will be saved into the data column in the
+     * customcert_elements table.
+     *
+     * @param \stdClass $data the form data
+     * @return string the json encoded array
+     */
+    public function save_unique_data($data) {
+        return $data->width;
+    }
+}

element/border/classes/privacy/provider.php

@@ -0,0 +1,46 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy Subsystem implementation for customcertelement_border.
+ *
+ * @package    customcertelement_border
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_border\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Privacy Subsystem for customcertelement_border implementing null_provider.
+ *
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements \core_privacy\local\metadata\null_provider {
+
+    /**
+     * Get the language string identifier with the component's language
+     * file to explain why this plugin stores no data.
+     *
+     * @return  string
+     */
+    public static function get_reason() : string {
+        return 'privacy:metadata';
+    }
+}

element/border/lang/en/customcertelement_border.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Strings for component 'customcertelement_border', language 'en'.
+ *
+ * @package    customcertelement_border
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['pluginname'] = 'Border';
+$string['privacy:metadata'] = 'The Border plugin does not store any personal data.';
+$string['invalidwidth'] = 'The width has to be a valid number greater than 0.';
+$string['width'] = 'Width';
+$string['width_help'] = 'Width of the border in mm.';

element/border/version.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the version information for the border plugin.
+ *
+ * @package    customcertelement_border
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+$plugin->version   = 2019052000; // The current module version (Date: YYYYMMDDXX).
+$plugin->requires  = 2019052000; // Requires this Moodle version (3.7).
+$plugin->component = 'customcertelement_border';

element/categoryname/classes/element.php

@@ -0,0 +1,82 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the customcert element categoryname's core interaction API.
+ *
+ * @package    customcertelement_categoryname
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_categoryname;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The customcert element categoryname's core interaction API.
+ *
+ * @package    customcertelement_categoryname
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class element extends \mod_customcert\element {
+
+    /**
+     * Handles rendering the element on the pdf.
+     *
+     * @param \pdf $pdf the pdf object
+     * @param bool $preview true if it is a preview, false otherwise
+     * @param \stdClass $user the user we are rendering this for
+     */
+    public function render($pdf, $preview, $user) {
+        \mod_customcert\element_helper::render_content($pdf, $this, $this->get_category_name());
+    }
+
+    /**
+     * Render the element in html.
+     *
+     * This function is used to render the element when we are using the
+     * drag and drop interface to position it.
+     *
+     * @return string the html
+     */
+    public function render_html() {
+        return \mod_customcert\element_helper::render_html_content($this, $this->get_category_name());
+    }
+
+    /**
+     * Helper function that returns the category name.
+     *
+     * @return string
+     */
+    protected function get_category_name() : string {
+        global $DB, $SITE;
+
+        $courseid = \mod_customcert\element_helper::get_courseid($this->get_id());
+        $course = get_course($courseid);
+        $context = \mod_customcert\element_helper::get_context($this->get_id());
+
+        // Check that there is a course category available.
+        if (!empty($course->category)) {
+            $categoryname = $DB->get_field('course_categories', 'name', array('id' => $course->category), MUST_EXIST);
+        } else { // Must be in a site template.
+            $categoryname = $SITE->fullname;
+        }
+
+        return format_string($categoryname, true, ['context' => $context]);
+    }
+}

element/categoryname/classes/privacy/provider.php

@@ -0,0 +1,46 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy Subsystem implementation for customcertelement_categoryname.
+ *
+ * @package    customcertelement_categoryname
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_categoryname\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Privacy Subsystem for customcertelement_categoryname implementing null_provider.
+ *
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements \core_privacy\local\metadata\null_provider {
+
+    /**
+     * Get the language string identifier with the component's language
+     * file to explain why this plugin stores no data.
+     *
+     * @return  string
+     */
+    public static function get_reason() : string {
+        return 'privacy:metadata';
+    }
+}

element/categoryname/lang/en/customcertelement_categoryname.php

@@ -0,0 +1,26 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Strings for component 'customcertelement_categoryname', language 'en'.
+ *
+ * @package    customcertelement_categoryname
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['pluginname'] = 'Category name';
+$string['privacy:metadata'] = 'The Category name plugin does not store any personal data.';

element/categoryname/version.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the version information for the categoryname plugin.
+ *
+ * @package    customcertelement_categoryname
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+$plugin->version   = 2019052000; // The current module version (Date: YYYYMMDDXX).
+$plugin->requires  = 2019052000; // Requires this Moodle version (3.7).
+$plugin->component = 'customcertelement_categoryname';

element/code/classes/element.php

@@ -0,0 +1,77 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the customcert element code's core interaction API.
+ *
+ * @package    customcertelement_code
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_code;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The customcert element code's core interaction API.
+ *
+ * @package    customcertelement_code
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class element extends \mod_customcert\element {
+
+    /**
+     * Handles rendering the element on the pdf.
+     *
+     * @param \pdf $pdf the pdf object
+     * @param bool $preview true if it is a preview, false otherwise
+     * @param \stdClass $user the user we are rendering this for
+     */
+    public function render($pdf, $preview, $user) {
+        global $DB;
+
+        if ($preview) {
+            $code = \mod_customcert\certificate::generate_code();
+        } else {
+            // Get the page.
+            $page = $DB->get_record('customcert_pages', array('id' => $this->get_pageid()), '*', MUST_EXIST);
+            // Get the customcert this page belongs to.
+            $customcert = $DB->get_record('customcert', array('templateid' => $page->templateid), '*', MUST_EXIST);
+            // Now we can get the issue for this user.
+            $issue = $DB->get_record('customcert_issues', array('userid' => $user->id, 'customcertid' => $customcert->id),
+                '*', IGNORE_MULTIPLE);
+            $code = $issue->code;
+        }
+
+        \mod_customcert\element_helper::render_content($pdf, $this, $code);
+    }
+
+    /**
+     * Render the element in html.
+     *
+     * This function is used to render the element when we are using the
+     * drag and drop interface to position it.
+     *
+     * @return string the html
+     */
+    public function render_html() {
+        $code = \mod_customcert\certificate::generate_code();
+
+        return \mod_customcert\element_helper::render_html_content($this, $code);
+    }
+}

element/code/classes/privacy/provider.php

@@ -0,0 +1,46 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy Subsystem implementation for customcertelement_code.
+ *
+ * @package    customcertelement_code
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_code\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Privacy Subsystem for customcertelement_code implementing null_provider.
+ *
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements \core_privacy\local\metadata\null_provider {
+
+    /**
+     * Get the language string identifier with the component's language
+     * file to explain why this plugin stores no data.
+     *
+     * @return  string
+     */
+    public static function get_reason() : string {
+        return 'privacy:metadata';
+    }
+}

element/code/lang/en/customcertelement_code.php

@@ -0,0 +1,26 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Strings for component 'customcertelement_code', language 'en'.
+ *
+ * @package    customcertelement_code
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['pluginname'] = 'Code';
+$string['privacy:metadata'] = 'The Code plugin does not store any personal data.';

element/code/version.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the version information for the code plugin.
+ *
+ * @package    customcertelement_code
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+$plugin->version   = 2019052000; // The current module version (Date: YYYYMMDDXX).
+$plugin->requires  = 2019052000; // Requires this Moodle version (3.7).
+$plugin->component = 'customcertelement_code';

element/coursefield/classes/element.php

@@ -0,0 +1,154 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the customcert element coursefield's core interaction API.
+ *
+ * @package    customcertelement_coursefield
+ * @copyright  2019 Catalyst IT
+ * @author     Dan Marsden
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_coursefield;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The customcert element coursefield's core interaction API.
+ *
+ * @package    customcertelement_coursefield
+ * @copyright  2019 Catalyst IT
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class element extends \mod_customcert\element {
+
+    /**
+     * This function renders the form elements when adding a customcert element.
+     *
+     * @param \MoodleQuickForm $mform the edit form instance
+     */
+    public function render_form_elements($mform) {
+        // Get the user profile fields.
+        $coursefields = array(
+            'fullname' => get_string('fullnamecourse'),
+            'shortname' => get_string('shortnamecourse'),
+            'idnumber' => get_string('idnumbercourse')
+        );
+        // Get the course custom fields.
+        $arrcustomfields = array();
+        $handler = \core_course\customfield\course_handler::create();
+        $customfields = $handler->get_fields();
+
+        foreach ($customfields as $field) {
+            $arrcustomfields[$field->get('id')] = $field->get_formatted_name();
+        }
+
+        // Combine the two.
+        $fields = $coursefields + $arrcustomfields;
+        \core_collator::asort($fields);
+
+        // Create the select box where the user field is selected.
+        $mform->addElement('select', 'coursefield', get_string('coursefield', 'customcertelement_coursefield'), $fields);
+        $mform->setType('coursefield', PARAM_ALPHANUM);
+        $mform->addHelpButton('coursefield', 'coursefield', 'customcertelement_coursefield');
+
+        parent::render_form_elements($mform);
+    }
+
+    /**
+     * This will handle how form data will be saved into the data column in the
+     * customcert_elements table.
+     *
+     * @param \stdClass $data the form data
+     * @return string the text
+     */
+    public function save_unique_data($data) {
+        return $data->coursefield;
+    }
+
+    /**
+     * Handles rendering the element on the pdf.
+     *
+     * @param \pdf $pdf the pdf object
+     * @param bool $preview true if it is a preview, false otherwise
+     * @param \stdClass $user the user we are rendering this for
+     */
+    public function render($pdf, $preview, $user) {
+
+        $courseid = \mod_customcert\element_helper::get_courseid($this->id);
+        $course = get_course($courseid);
+
+        \mod_customcert\element_helper::render_content($pdf, $this, $this->get_course_field_value($course, $preview));
+    }
+
+    /**
+     * Render the element in html.
+     *
+     * This function is used to render the element when we are using the
+     * drag and drop interface to position it.
+     */
+    public function render_html() {
+        global $COURSE;
+
+        return \mod_customcert\element_helper::render_html_content($this, $this->get_course_field_value($COURSE, true));
+    }
+
+    /**
+     * Sets the data on the form when editing an element.
+     *
+     * @param \MoodleQuickForm $mform the edit form instance
+     */
+    public function definition_after_data($mform) {
+        if (!empty($this->get_data())) {
+            $element = $mform->getElement('coursefield');
+            $element->setValue($this->get_data());
+        }
+        parent::definition_after_data($mform);
+    }
+
+    /**
+     * Helper function that returns the field value in a human-readable format.
+     *
+     * @param \stdClass $course the course we are rendering this for
+     * @param bool $preview Is this a preview?
+     * @return string
+     */
+    protected function get_course_field_value(\stdClass $course, bool $preview) : string {
+
+        // The user field to display.
+        $field = $this->get_data();
+        // The value to display - we always want to show a value here so it can be repositioned.
+        if ($preview) {
+            $value = $field;
+        } else {
+            $value = '';
+        }
+        if (is_number($field)) { // Must be a custom course profile field.
+            $handler = \core_course\customfield\course_handler::create();
+            $data = $handler->get_instance_data($course->id, true);
+            if (!empty($data[$field])) {
+                $value = $data[$field]->export_value();
+            }
+
+        } else if (!empty($course->$field)) { // Field in the course table.
+            $value = $course->$field;
+        }
+
+        $context = \mod_customcert\element_helper::get_context($this->get_id());
+        return format_string($value, true, ['context' => $context]);
+    }
+}

element/coursefield/classes/privacy/provider.php

@@ -0,0 +1,47 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy Subsystem implementation for customcertelement_coursefield.
+ *
+ * @package    customcertelement_coursefield
+ * @copyright  2019 Catalyst IT
+ * @author     Dan Marsden
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_coursefield\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Privacy Subsystem for customcertelement_coursefield implementing null_provider.
+ *
+ * @copyright  2019 Catalyst IT
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements \core_privacy\local\metadata\null_provider {
+
+    /**
+     * Get the language string identifier with the component's language
+     * file to explain why this plugin stores no data.
+     *
+     * @return  string
+     */
+    public static function get_reason() : string {
+        return 'privacy:metadata';
+    }
+}

element/coursefield/lang/en/customcertelement_coursefield.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Strings for component 'customcertelement_coursefield', language 'en'.
+ *
+ * @package    customcertelement_coursefield
+ * @copyright  2019 Catalyst IT
+ * @author     Dan Marsden
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['pluginname'] = 'Course field';
+$string['privacy:metadata'] = 'The course field plugin does not store any personal data.';
+$string['coursefield'] = 'Course field';
+$string['coursefield_help'] = 'This is the course field that will be displayed on the PDF.';

element/coursefield/version.php

@@ -0,0 +1,30 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the version information for the coursefield plugin.
+ *
+ * @package    customcertelement_coursefield
+ * @copyright  2019 Catalyst IT
+ * @author     Dan Marsden
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+$plugin->version   = 2019041100; // The current module version (Date: YYYYMMDDXX).
+$plugin->requires  = 2019041000; // Requires this Moodle version (3.7).
+$plugin->component = 'customcertelement_coursefield';

element/coursename/classes/element.php

@@ -0,0 +1,73 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the customcert element coursename's core interaction API.
+ *
+ * @package    customcertelement_coursename
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_coursename;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The customcert element coursename's core interaction API.
+ *
+ * @package    customcertelement_coursename
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class element extends \mod_customcert\element {
+
+    /**
+     * Handles rendering the element on the pdf.
+     *
+     * @param \pdf $pdf the pdf object
+     * @param bool $preview true if it is a preview, false otherwise
+     * @param \stdClass $user the user we are rendering this for
+     */
+    public function render($pdf, $preview, $user) {
+        \mod_customcert\element_helper::render_content($pdf, $this, $this->get_course_name());
+    }
+
+    /**
+     * Render the element in html.
+     *
+     * This function is used to render the element when we are using the
+     * drag and drop interface to position it.
+     *
+     * @return string the html
+     */
+    public function render_html() {
+        return \mod_customcert\element_helper::render_html_content($this, $this->get_course_name());
+    }
+
+    /**
+     * Helper function that returns the category name.
+     *
+     * @return string
+     */
+    protected function get_course_name() : string {
+        $courseid = \mod_customcert\element_helper::get_courseid($this->get_id());
+        $course = get_course($courseid);
+        $context = \mod_customcert\element_helper::get_context($this->get_id());
+
+        return format_string($course->fullname, true, ['context' => $context]);
+    }
+}

element/coursename/classes/privacy/provider.php

@@ -0,0 +1,46 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy Subsystem implementation for customcertelement_coursename.
+ *
+ * @package    customcertelement_coursename
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_coursename\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Privacy Subsystem for customcertelement_coursename implementing null_provider.
+ *
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements \core_privacy\local\metadata\null_provider {
+
+    /**
+     * Get the language string identifier with the component's language
+     * file to explain why this plugin stores no data.
+     *
+     * @return  string
+     */
+    public static function get_reason() : string {
+        return 'privacy:metadata';
+    }
+}

element/coursename/lang/en/customcertelement_coursename.php

@@ -0,0 +1,26 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Strings for component 'customcertelement_coursename', language 'en'.
+ *
+ * @package    customcertelement_coursename
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['pluginname'] = 'Course name';
+$string['privacy:metadata'] = 'The Course name plugin does not store any personal data.';

element/coursename/version.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the version information for the coursename plugin.
+ *
+ * @package    customcertelement_coursename
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+$plugin->version   = 2019052000; // The current module version (Date: YYYYMMDDXX).
+$plugin->requires  = 2019052000; // Requires this Moodle version (3.7).
+$plugin->component = 'customcertelement_coursename';

element/date/classes/element.php

@@ -0,0 +1,409 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the customcert element date's core interaction API.
+ *
+ * @package    customcertelement_date
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_date;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Date - Course grade date
+ */
+define('CUSTOMCERT_DATE_COURSE_GRADE', '0');
+
+/**
+ * Date - Issue
+ */
+define('CUSTOMCERT_DATE_ISSUE', '-1');
+
+/**
+ * Date - Completion
+ */
+define('CUSTOMCERT_DATE_COMPLETION', '-2');
+
+/**
+ * Date - Course start
+ */
+define('CUSTOMCERT_DATE_COURSE_START', '-3');
+
+/**
+ * Date - Course end
+ */
+define('CUSTOMCERT_DATE_COURSE_END', '-4');
+
+/**
+ * Date - Current date
+ */
+define('CUSTOMCERT_DATE_CURRENT_DATE', '-5');
+
+/**
+ * Date - Enrollment start
+ */
+define('CUSTOMCERT_DATE_ENROLMENT_START', '-6');
+
+/**
+ * Date - Entrollment end
+ */
+define('CUSTOMCERT_DATE_ENROLMENT_END', '-7');
+
+require_once($CFG->dirroot . '/lib/grade/constants.php');
+
+/**
+ * The customcert element date's core interaction API.
+ *
+ * @package    customcertelement_date
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class element extends \mod_customcert\element {
+
+    /**
+     * This function renders the form elements when adding a customcert element.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance
+     */
+    public function render_form_elements($mform) {
+        global $CFG, $COURSE;
+
+        // Get the possible date options.
+        $dateoptions = array();
+        $dateoptions[CUSTOMCERT_DATE_ISSUE] = get_string('issueddate', 'customcertelement_date');
+        $dateoptions[CUSTOMCERT_DATE_CURRENT_DATE] = get_string('currentdate', 'customcertelement_date');
+        $completionenabled = $CFG->enablecompletion && ($COURSE->id == SITEID || $COURSE->enablecompletion);
+        if ($completionenabled) {
+            $dateoptions[CUSTOMCERT_DATE_COMPLETION] = get_string('completiondate', 'customcertelement_date');
+        }
+        $dateoptions[CUSTOMCERT_DATE_ENROLMENT_START] = get_string('enrolmentstartdate', 'customcertelement_date');
+        $dateoptions[CUSTOMCERT_DATE_ENROLMENT_END] = get_string('enrolmentenddate', 'customcertelement_date');
+
+        $dateoptions[CUSTOMCERT_DATE_COURSE_START] = get_string('coursestartdate', 'customcertelement_date');
+        $dateoptions[CUSTOMCERT_DATE_COURSE_END] = get_string('courseenddate', 'customcertelement_date');
+        $dateoptions[CUSTOMCERT_DATE_COURSE_GRADE] = get_string('coursegradedate', 'customcertelement_date');
+        $dateoptions = $dateoptions + \mod_customcert\element_helper::get_grade_items($COURSE);
+
+        $mform->addElement('select', 'dateitem', get_string('dateitem', 'customcertelement_date'), $dateoptions);
+        $mform->addHelpButton('dateitem', 'dateitem', 'customcertelement_date');
+
+        $mform->addElement('select', 'dateformat', get_string('dateformat', 'customcertelement_date'), self::get_date_formats());
+        $mform->addHelpButton('dateformat', 'dateformat', 'customcertelement_date');
+
+        parent::render_form_elements($mform);
+    }
+
+    /**
+     * This will handle how form data will be saved into the data column in the
+     * customcert_elements table.
+     *
+     * @param \stdClass $data the form data
+     * @return string the json encoded array
+     */
+    public function save_unique_data($data) {
+        // Array of data we will be storing in the database.
+        $arrtostore = array(
+            'dateitem' => $data->dateitem,
+            'dateformat' => $data->dateformat
+        );
+
+        // Encode these variables before saving into the DB.
+        return json_encode($arrtostore);
+    }
+
+    /**
+     * Handles rendering the element on the pdf.
+     *
+     * @param \pdf $pdf the pdf object
+     * @param bool $preview true if it is a preview, false otherwise
+     * @param \stdClass $user the user we are rendering this for
+     */
+    public function render($pdf, $preview, $user) {
+        global $DB;
+
+        // If there is no element data, we have nothing to display.
+        if (empty($this->get_data())) {
+            return;
+        }
+
+        $courseid = \mod_customcert\element_helper::get_courseid($this->id);
+
+        // Decode the information stored in the database.
+        $dateinfo = json_decode($this->get_data());
+        $dateitem = $dateinfo->dateitem;
+        $dateformat = $dateinfo->dateformat;
+
+        // If we are previewing this certificate then just show a demonstration date.
+        if ($preview) {
+            $date = time();
+        } else {
+            // Get the page.
+            $page = $DB->get_record('customcert_pages', array('id' => $this->get_pageid()), '*', MUST_EXIST);
+            // Get the customcert this page belongs to.
+            $customcert = $DB->get_record('customcert', array('templateid' => $page->templateid), '*', MUST_EXIST);
+            // Now we can get the issue for this user.
+            $issue = $DB->get_record('customcert_issues', array('userid' => $user->id, 'customcertid' => $customcert->id),
+                '*', IGNORE_MULTIPLE);
+
+            if ($dateitem == CUSTOMCERT_DATE_ISSUE) {
+                $date = $issue->timecreated;
+            } else if ($dateitem == CUSTOMCERT_DATE_CURRENT_DATE) {
+                $date = time();
+            } else if ($dateitem == CUSTOMCERT_DATE_COMPLETION) {
+                // Get the last completion date.
+                $sql = "SELECT MAX(c.timecompleted) as timecompleted
+                          FROM {course_completions} c
+                         WHERE c.userid = :userid
+                           AND c.course = :courseid";
+                if ($timecompleted = $DB->get_record_sql($sql, array('userid' => $issue->userid, 'courseid' => $courseid))) {
+                    if (!empty($timecompleted->timecompleted)) {
+                        $date = $timecompleted->timecompleted;
+                    }
+                }
+            } else if ($dateitem == CUSTOMCERT_DATE_ENROLMENT_START) {
+                // Get the enrolment start date.
+                $sql = "SELECT ue.timestart FROM {enrol} e JOIN {user_enrolments} ue ON ue.enrolid = e.id
+                         WHERE e.courseid = :courseid
+                           AND ue.userid = :userid";
+                if ($timestart = $DB->get_record_sql($sql, array('userid' => $issue->userid, 'courseid' => $courseid))) {
+                    if (!empty($timestart->timestart)) {
+                        $date = $timestart->timestart;
+                    }
+                }
+            } else if ($dateitem == CUSTOMCERT_DATE_ENROLMENT_END) {
+                // Get the enrolment end date.
+                $sql = "SELECT ue.timeend FROM {enrol} e JOIN {user_enrolments} ue ON ue.enrolid = e.id
+                         WHERE e.courseid = :courseid
+                           AND ue.userid = :userid";
+                if ($timeend = $DB->get_record_sql($sql, array('userid' => $issue->userid, 'courseid' => $courseid))) {
+                    if (!empty($timeend->timeend)) {
+                        $date = $timeend->timeend;
+                    }
+                }
+            } else if ($dateitem == CUSTOMCERT_DATE_COURSE_START) {
+                $date = $DB->get_field('course', 'startdate', array('id' => $courseid));
+            } else if ($dateitem == CUSTOMCERT_DATE_COURSE_END) {
+                $date = $DB->get_field('course', 'enddate', array('id' => $courseid));
+            } else {
+                if ($dateitem == CUSTOMCERT_DATE_COURSE_GRADE) {
+                    $grade = \mod_customcert\element_helper::get_course_grade_info(
+                        $courseid,
+                        GRADE_DISPLAY_TYPE_DEFAULT,
+                        $user->id
+                    );
+                } else if (strpos($dateitem, 'gradeitem:') === 0) {
+                    $gradeitemid = substr($dateitem, 10);
+                    $grade = \mod_customcert\element_helper::get_grade_item_info(
+                        $gradeitemid,
+                        $dateitem,
+                        $user->id
+                    );
+                } else {
+                    $grade = \mod_customcert\element_helper::get_mod_grade_info(
+                        $dateitem,
+                        GRADE_DISPLAY_TYPE_DEFAULT,
+                        $user->id
+                    );
+                }
+
+                if ($grade && !empty($grade->get_dategraded())) {
+                    $date = $grade->get_dategraded();
+                }
+            }
+        }
+
+        // Ensure that a date has been set.
+        if (!empty($date)) {
+            \mod_customcert\element_helper::render_content($pdf, $this, $this->get_date_format_string($date, $dateformat));
+        }
+    }
+
+    /**
+     * Render the element in html.
+     *
+     * This function is used to render the element when we are using the
+     * drag and drop interface to position it.
+     *
+     * @return string the html
+     */
+    public function render_html() {
+        // If there is no element data, we have nothing to display.
+        if (empty($this->get_data())) {
+            return;
+        }
+
+        // Decode the information stored in the database.
+        $dateinfo = json_decode($this->get_data());
+        $dateformat = $dateinfo->dateformat;
+
+        return \mod_customcert\element_helper::render_html_content($this, $this->get_date_format_string(time(), $dateformat));
+    }
+
+    /**
+     * Sets the data on the form when editing an element.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance
+     */
+    public function definition_after_data($mform) {
+        // Set the item and format for this element.
+        if (!empty($this->get_data())) {
+            $dateinfo = json_decode($this->get_data());
+
+            $element = $mform->getElement('dateitem');
+            $element->setValue($dateinfo->dateitem);
+
+            $element = $mform->getElement('dateformat');
+            $element->setValue($dateinfo->dateformat);
+        }
+
+        parent::definition_after_data($mform);
+    }
+
+    /**
+     * This function is responsible for handling the restoration process of the element.
+     *
+     * We will want to update the course module the date element is pointing to as it will
+     * have changed in the course restore.
+     *
+     * @param \restore_customcert_activity_task $restore
+     */
+    public function after_restore($restore) {
+        global $DB;
+
+        $dateinfo = json_decode($this->get_data());
+        if ($newitem = \restore_dbops::get_backup_ids_record($restore->get_restoreid(), 'course_module', $dateinfo->dateitem)) {
+            $dateinfo->dateitem = $newitem->newitemid;
+            $DB->set_field('customcert_elements', 'data', $this->save_unique_data($dateinfo), array('id' => $this->get_id()));
+        }
+    }
+
+    /**
+     * Helper function to return all the date formats.
+     *
+     * @return array the list of date formats
+     */
+    public static function get_date_formats() {
+        // Hard-code date so users can see the difference between short dates with and without the leading zero.
+        // Eg. 06/07/18 vs 6/07/18.
+        $date = 1530849658;
+
+        $suffix = self::get_ordinal_number_suffix(userdate($date, '%d'));
+
+        $dateformats = [
+            1 => userdate($date, '%B %d, %Y'),
+            2 => userdate($date, '%B %d' . $suffix . ', %Y')
+        ];
+
+        $strdateformats = [
+            'strftimedate',
+            'strftimedatefullshort',
+            'strftimedatefullshortwleadingzero',
+            'strftimedateshort',
+            'strftimedatetime',
+            'strftimedatetimeshort',
+            'strftimedatetimeshortwleadingzero',
+            'strftimedaydate',
+            'strftimedaydatetime',
+            'strftimedayshort',
+            'strftimedaytime',
+            'strftimemonthyear',
+            'strftimerecent',
+            'strftimerecentfull',
+            'strftimetime'
+        ];
+
+        foreach ($strdateformats as $strdateformat) {
+            if ($strdateformat == 'strftimedatefullshortwleadingzero') {
+                $dateformats[$strdateformat] = userdate($date, get_string('strftimedatefullshort', 'langconfig'), 99, false);
+            } else if ($strdateformat == 'strftimedatetimeshortwleadingzero') {
+                $dateformats[$strdateformat] = userdate($date, get_string('strftimedatetimeshort', 'langconfig'), 99, false);
+            } else {
+                $dateformats[$strdateformat] = userdate($date, get_string($strdateformat, 'langconfig'));
+            }
+        }
+
+        return $dateformats;
+    }
+
+    /**
+     * Returns the date in a readable format.
+     *
+     * @param int $date
+     * @param string $dateformat
+     * @return string
+     */
+    protected function get_date_format_string($date, $dateformat) {
+        // Keeping for backwards compatibility.
+        if (is_number($dateformat)) {
+            switch ($dateformat) {
+                case 1:
+                    $certificatedate = userdate($date, '%B %d, %Y');
+                    break;
+                case 2:
+                    $suffix = self::get_ordinal_number_suffix(userdate($date, '%d'));
+                    $certificatedate = userdate($date, '%B %d' . $suffix . ', %Y');
+                    break;
+                case 3:
+                    $certificatedate = userdate($date, '%d %B %Y');
+                    break;
+                case 4:
+                    $certificatedate = userdate($date, '%B %Y');
+                    break;
+                default:
+                    $certificatedate = userdate($date, get_string('strftimedate', 'langconfig'));
+            }
+        }
+
+        // Ok, so we must have been passed the actual format in the lang file.
+        if (!isset($certificatedate)) {
+            if ($dateformat == 'strftimedatefullshortwleadingzero') {
+                $certificatedate = userdate($date, get_string('strftimedatefullshort', 'langconfig'), 99, false);
+            } else if ($dateformat == 'strftimedatetimeshortwleadingzero') {
+                $certificatedate = userdate($date, get_string('strftimedatetimeshort', 'langconfig'), 99, false);
+            } else {
+                $certificatedate = userdate($date, get_string($dateformat, 'langconfig'));
+            }
+        }
+
+        return $certificatedate;
+    }
+
+    /**
+     * Helper function to return the suffix of the day of
+     * the month, eg 'st' if it is the 1st of the month.
+     *
+     * @param int $day the day of the month
+     * @return string the suffix.
+     */
+    protected static function get_ordinal_number_suffix($day) {
+        if (!in_array(($day % 100), array(11, 12, 13))) {
+            switch ($day % 10) {
+                // Handle 1st, 2nd, 3rd.
+                case 1:
+                    return get_string('numbersuffix_st_as_in_first', 'customcertelement_date');
+                case 2:
+                    return get_string('numbersuffix_nd_as_in_second', 'customcertelement_date');
+                case 3:
+                    return get_string('numbersuffix_rd_as_in_third', 'customcertelement_date');
+            }
+        }
+        return 'th';
+    }
+}

element/date/classes/privacy/provider.php

@@ -0,0 +1,46 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy Subsystem implementation for customcertelement_date.
+ *
+ * @package    customcertelement_date
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_date\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Privacy Subsystem for customcertelement_date implementing null_provider.
+ *
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements \core_privacy\local\metadata\null_provider {
+
+    /**
+     * Get the language string identifier with the component's language
+     * file to explain why this plugin stores no data.
+     *
+     * @return  string
+     */
+    public static function get_reason() : string {
+        return 'privacy:metadata';
+    }
+}

element/date/lang/en/customcertelement_date.php

@@ -0,0 +1,42 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Strings for component 'customcertelement_date', language 'en'.
+ *
+ * @package    customcertelement_date
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['completiondate'] = 'Completion date';
+$string['courseenddate'] = 'Course end date';
+$string['coursegradedate'] = 'Course grade date';
+$string['coursestartdate'] = 'Course start date';
+$string['enrolmentenddate'] = 'Enrolment end date';
+$string['enrolmentstartdate'] = 'Enrolment start date';
+$string['currentdate'] = 'Current date';
+$string['dateformat'] = 'Date format';
+$string['dateformat_help'] = 'This is the format of the date that will be displayed';
+$string['dateitem'] = 'Date item';
+$string['dateitem_help'] = 'This will be the date that is printed on the certificate';
+$string['issueddate'] = 'Issued date';
+$string['pluginname'] = 'Date';
+$string['privacy:metadata'] = 'The Date plugin does not store any personal data.';
+$string['numbersuffix_nd_as_in_second'] = 'nd';
+$string['numbersuffix_rd_as_in_third'] = 'rd';
+$string['numbersuffix_st_as_in_first'] = 'st';
+$string['userdateformat'] = 'User date format';

element/date/version.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the version information for the date plugin.
+ *
+ * @package    customcertelement_date
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+$plugin->version   = 2019052001; // The current module version (Date: YYYYMMDDXX).
+$plugin->requires  = 2019052000; // Requires this Moodle version (3.7).
+$plugin->component = 'customcertelement_date';

element/daterange/classes/element.php

@@ -0,0 +1,731 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the customcert date range element.
+ *
+ * @package    customcertelement_daterange
+ * @copyright  2018 Dmitrii Metelkin <dmitriim@catalyst-au.net>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_daterange;
+
+use \mod_customcert\element_helper;
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+require_once($CFG->dirroot . '/lib/grade/constants.php');
+
+/**
+ * The customcert date range element.
+ *
+ * @package    customcertelement_daterange
+ * @copyright  2018 Dmitrii Metelkin <dmitriim@catalyst-au.net>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class element extends \mod_customcert\element {
+
+    /**
+     * Max recurring period in seconds.
+     */
+    const MAX_RECURRING_PERIOD = 31556926; // 12 months.
+
+    /**
+     * Current year placeholder string.
+     */
+    const CURRENT_YEAR_PLACEHOLDER = '{{current_year}}';
+
+    /**
+     * First year in a date range placeholder string.
+     */
+    const RANGE_FIRST_YEAR_PLACEHOLDER = '{{range_first_year}}';
+
+    /**
+     * Last year in a date range placeholder string.
+     */
+    const RANGE_LAST_YEAR_PLACEHOLDER = '{{range_last_year}}';
+
+    /**
+     * First year in a date range placeholder string.
+     */
+    const RECUR_RANGE_FIRST_YEAR_PLACEHOLDER = '{{recurring_range_first_year}}';
+
+    /**
+     * Last year in a date range placeholder string.
+     */
+    const RECUR_RANGE_LAST_YEAR_PLACEHOLDER = '{{recurring_range_last_year}}';
+
+    /**
+     * A year in the user's date.
+     */
+    const DATE_YEAR_PLACEHOLDER = '{{date_year}}';
+
+    /**
+     * Date - Issue
+     */
+    const DATE_ISSUE = -1;
+
+    /**
+     * Date - Completion
+     */
+    const DATE_COMPLETION = -2;
+
+    /**
+     * Date - Course start
+     */
+    const DATE_COURSE_START = -3;
+
+    /**
+     * Date - Course end
+     */
+    const DATE_COURSE_END = -4;
+
+    /**
+     * Date - Course grade date
+     */
+    const DATE_COURSE_GRADE = -5;
+
+    /**
+     * Date - Course current date
+     */
+    const DATE_CURRENT_DATE = -6;
+
+    /**
+     * This function renders the form elements when adding a customcert element.
+     *
+     * @param \MoodleQuickForm $mform the edit form instance
+     */
+    public function render_form_elements($mform) {
+        global $COURSE;
+
+        // Get the possible date options.
+        $dateoptions = array();
+        $dateoptions[self::DATE_ISSUE] = get_string('issueddate', 'customcertelement_daterange');
+        $dateoptions[self::DATE_CURRENT_DATE] = get_string('currentdate', 'customcertelement_daterange');
+        $dateoptions[self::DATE_COMPLETION] = get_string('completiondate', 'customcertelement_daterange');
+        $dateoptions[self::DATE_COURSE_START] = get_string('coursestartdate', 'customcertelement_daterange');
+        $dateoptions[self::DATE_COURSE_END] = get_string('courseenddate', 'customcertelement_daterange');
+        $dateoptions[self::DATE_COURSE_GRADE] = get_string('coursegradedate', 'customcertelement_daterange');
+
+        $dateoptions = $dateoptions + element_helper::get_grade_items($COURSE);
+
+        $mform->addElement('select', 'dateitem', get_string('dateitem', 'customcertelement_daterange'), $dateoptions);
+        $mform->addHelpButton('dateitem', 'dateitem', 'customcertelement_daterange');
+
+        parent::render_form_elements($mform);
+
+        $mform->addElement('header', 'dateranges', get_string('dateranges', 'customcertelement_daterange'));
+        $mform->addElement('static', 'help', '', get_string('help', 'customcertelement_daterange'));
+        $mform->addElement('static', 'placeholders', '', get_string('placeholders', 'customcertelement_daterange'));
+
+        $mform->addElement('text', 'fallbackstring', get_string('fallbackstring', 'customcertelement_daterange'));
+        $mform->addHelpButton('fallbackstring', 'fallbackstring', 'customcertelement_daterange');
+        $mform->setType('fallbackstring', PARAM_NOTAGS);
+
+        if (empty($this->get_decoded_data()->dateranges)) {
+            $repeats = 1;
+        } else {
+            $repeats = count($this->get_decoded_data()->dateranges);
+        }
+
+        $ranges = [];
+
+        $ranges[] = $mform->createElement('html', '<hr>');
+
+        $ranges[] = $mform->createElement(
+            'date_selector',
+            'startdate',
+            get_string('start', 'customcertelement_daterange')
+        );
+
+        $ranges[] = $mform->createElement(
+            'date_selector',
+            'enddate',
+            get_string('end', 'customcertelement_daterange')
+        );
+
+        $ranges[] = $mform->createElement(
+            'checkbox',
+            'recurring',
+            get_string('recurring', 'customcertelement_daterange')
+        );
+
+        $ranges[] = $mform->createElement(
+            'text',
+            'datestring',
+            get_string('datestring', 'customcertelement_daterange'),
+            ['class' => 'datestring']
+        );
+
+        $ranges[] = $mform->createElement(
+            'advcheckbox',
+            'rangedelete',
+            get_string('setdeleted', 'customcertelement_daterange'),
+            '',
+            [],
+            [0, 1]
+        );
+
+        $rangeoptions = array();
+        $rangeoptions['startdate']['type'] = PARAM_INT;
+        $rangeoptions['enddate']['type'] = PARAM_INT;
+        $rangeoptions['recurring']['type'] = PARAM_INT;
+        $rangeoptions['recurring']['helpbutton'] = ['recurring', 'customcertelement_daterange'];
+        $rangeoptions['datestring']['type'] = PARAM_NOTAGS;
+        $rangeoptions['rangedelete']['type'] = PARAM_BOOL;
+
+        $addstring = get_string('addrange', 'customcertelement_daterange');
+        $this->get_edit_element_form()->repeat_elements($ranges, $repeats, $rangeoptions, 'repeats', 'add', 1, $addstring, true);
+    }
+
+    /**
+     * A helper function to build consistent form element name.
+     *
+     * @param string $name
+     * @param string $num
+     *
+     * @return string
+     */
+    protected function build_element_name($name, $num) {
+        return $name . '[' . $num . ']';
+    }
+
+    /**
+     * Get decoded data stored in DB.
+     *
+     * @return \stdClass
+     */
+    protected function get_decoded_data() {
+        return json_decode($this->get_data());
+    }
+
+    /**
+     * Sets the data on the form when editing an element.
+     *
+     * @param \MoodleQuickForm $mform the edit form instance
+     */
+    public function definition_after_data($mform) {
+        if (!empty($this->get_data()) && !$mform->isSubmitted()) {
+            $element = $mform->getElement('dateitem');
+            $element->setValue($this->get_decoded_data()->dateitem);
+
+            $element = $mform->getElement('fallbackstring');
+            $element->setValue($this->get_decoded_data()->fallbackstring);
+
+            foreach ($this->get_decoded_data()->dateranges as $key => $range) {
+                $mform->setDefault($this->build_element_name('startdate', $key), $range->startdate);
+                $mform->setDefault($this->build_element_name('enddate', $key), $range->enddate);
+                $mform->setDefault($this->build_element_name('datestring', $key), $range->datestring);
+                $mform->setDefault($this->build_element_name('recurring', $key), $range->recurring);
+            }
+        }
+
+        parent::definition_after_data($mform);
+    }
+
+    /**
+     * Performs validation on the element values.
+     *
+     * @param array $data the submitted data
+     * @param array $files the submitted files
+     * @return array the validation errors
+     */
+    public function validate_form_elements($data, $files) {
+        $errors = parent::validate_form_elements($data, $files);
+
+        // Check if at least one range is set.
+        $error = get_string('error:atleastone', 'customcertelement_daterange');
+
+        for ($i = 0; $i < $data['repeats']; $i++) {
+            if (empty($data['rangedelete'][$i])) {
+                $error = '';
+            }
+        }
+
+        if (!empty($error)) {
+            $errors['help'] = $error;
+        }
+
+        // Check that datestring is set dataranges what aren't need to be deleted.
+        for ($i = 0; $i < $data['repeats']; $i++) {
+            // Skip elements that needs to be deleted.
+            if (!empty($data['rangedelete'][$i])) {
+                continue;
+            }
+
+            if (empty($data['datestring'][$i])) {
+                $name = $this->build_element_name('datestring', $i);
+                $errors[$name] = get_string('error:datestring', 'customcertelement_daterange');
+            }
+
+            // Check that end date is correctly set.
+            if ( $data['startdate'][$i] >= $data['enddate'][$i] ) {
+                $errors[$this->build_element_name('enddate', $i)] = get_string('error:enddate', 'customcertelement_daterange');
+            }
+
+            $rangeperiod = $data['enddate'][$i] - $data['startdate'][$i];
+
+            // Check that recurring dateranges are not longer than 12 months.
+            if (!empty($data['recurring'][$i]) && $rangeperiod >= self::MAX_RECURRING_PERIOD ) {
+                $errors[$this->build_element_name('enddate', $i)] = get_string('error:recurring', 'customcertelement_daterange');
+            }
+        }
+
+        return $errors;
+    }
+
+    /**
+     * This will handle how form data will be saved into the data column in the
+     * customcert_elements table.
+     *
+     * @param \stdClass $data the form data
+     * @return string the json encoded array
+     */
+    public function save_unique_data($data) {
+        $arrtostore = array(
+            'dateitem' => $data->dateitem,
+            'fallbackstring' => $data->fallbackstring,
+            'dateranges' => [],
+        );
+
+        for ($i = 0; $i < $data->repeats; $i++) {
+            if (empty($data->rangedelete[$i])) {
+                $arrtostore['dateranges'][] = [
+                    'startdate' => $data->startdate[$i],
+                    'enddate' => $data->enddate[$i],
+                    'datestring' => $data->datestring[$i],
+                    'recurring' => !empty($data->recurring[$i]),
+                ];
+            }
+        }
+
+        // Encode these variables before saving into the DB.
+        return json_encode($arrtostore);
+    }
+
+    /**
+     * Handles rendering the element on the pdf.
+     *
+     * @param \pdf $pdf the pdf object
+     * @param bool $preview true if it is a preview, false otherwise
+     * @param \stdClass $user the user we are rendering this for
+     */
+    public function render($pdf, $preview, $user) {
+        global $DB;
+
+        // If there is no element data, we have nothing to display.
+        if (empty($this->get_data())) {
+            return;
+        }
+
+        $courseid = element_helper::get_courseid($this->id);
+        $dateitem = $this->get_decoded_data()->dateitem;
+
+        // If we are previewing this certificate then just show a demonstration date.
+        if ($preview) {
+            $date = time();
+        } else {
+            // Get the page.
+            $page = $DB->get_record('customcert_pages', array('id' => $this->get_pageid()), '*', MUST_EXIST);
+            // Get the customcert this page belongs to.
+            $customcert = $DB->get_record('customcert', array('templateid' => $page->templateid), '*', MUST_EXIST);
+            // Now we can get the issue for this user.
+            $issue = $DB->get_record('customcert_issues', array('userid' => $user->id, 'customcertid' => $customcert->id),
+                '*', MUST_EXIST);
+
+            switch ($dateitem) {
+                case self::DATE_ISSUE:
+                    $date = $issue->timecreated;
+                    break;
+
+                case self::DATE_CURRENT_DATE:
+                    $date = time();
+                    break;
+
+                case self::DATE_COMPLETION:
+                    // Get the last completion date.
+                    $sql = "SELECT MAX(c.timecompleted) as timecompleted
+                          FROM {course_completions} c
+                         WHERE c.userid = :userid
+                           AND c.course = :courseid";
+                    if ($timecompleted = $DB->get_record_sql($sql, array('userid' => $issue->userid, 'courseid' => $courseid))) {
+                        if (!empty($timecompleted->timecompleted)) {
+                            $date = $timecompleted->timecompleted;
+                        }
+                    }
+                    break;
+
+                case self::DATE_COURSE_START:
+                    $date = $DB->get_field('course', 'startdate', array('id' => $courseid));
+                    break;
+
+                case self::DATE_COURSE_END:
+                    $date = $DB->get_field('course', 'enddate', array('id' => $courseid));
+                    break;
+
+                case self::DATE_COURSE_GRADE:
+                    $grade = element_helper::get_course_grade_info(
+                        $courseid,
+                        GRADE_DISPLAY_TYPE_DEFAULT, $user->id
+                    );
+                    if ($grade && !empty($grade->get_dategraded())) {
+                        $date = $grade->get_dategraded();
+                    }
+                    break;
+
+                default:
+                    if (strpos($dateitem, 'gradeitem:') === 0) {
+                        $gradeitemid = substr($dateitem, 10);
+                        $grade = element_helper::get_grade_item_info(
+                            $gradeitemid,
+                            $dateitem,
+                            $user->id
+                        );
+                    } else {
+                        $grade = element_helper::get_mod_grade_info(
+                            $dateitem,
+                            GRADE_DISPLAY_TYPE_DEFAULT,
+                            $user->id
+                        );
+                    }
+                    if ($grade && !empty($grade->get_dategraded())) {
+                        $date = $grade->get_dategraded();
+                    }
+                    break;
+            }
+        }
+
+        // Ensure that a date has been set.
+        if (!empty($date)) {
+            element_helper::render_content($pdf, $this, $this->get_daterange_string($date));
+        }
+    }
+
+    /**
+     * Get daterange string.
+     *
+     * @param int $date Unix stamp date.
+     *
+     * @return string
+     */
+    protected function get_daterange_string($date) {
+        $matchedrange = null;
+        $outputstring = '';
+        $formatdata = [];
+        $formatdata['date'] = $date;
+
+        foreach ($this->get_decoded_data()->dateranges as $key => $range) {
+            if ($this->is_recurring_range($range)) {
+                if ($matchedrange = $this->get_matched_recurring_range($date, $range)) {
+                    $outputstring = $matchedrange->datestring;
+                    $formatdata['range'] = $range;
+                    $formatdata['recurringrange'] = $matchedrange;
+                    break;
+                }
+            } else {
+                if ($this->is_date_in_range($date, $range)) {
+                    $outputstring = $range->datestring;
+                    $formatdata['range'] = $range;
+                    break;
+                }
+            }
+        }
+
+        if (empty($outputstring) && !empty($this->get_decoded_data()->fallbackstring)) {
+            $outputstring = $this->get_decoded_data()->fallbackstring;
+        }
+
+        return $this->format_date_string($outputstring, $formatdata);
+    }
+
+    /**
+     * Returns whether or not a range is recurring.
+     *
+     * @param \stdClass $range Range object.
+     *
+     * @return bool
+     */
+    protected function is_recurring_range(\stdClass $range) {
+        return !empty($range->recurring);
+    }
+
+    /**
+     * Check if the provided date is in the date range.
+     *
+     * @param int $date Unix timestamp date to check.
+     * @param \stdClass $range Range object.
+     *
+     * @return bool
+     */
+    protected function is_date_in_range($date, \stdClass $range) {
+        return ($date >= $range->startdate && $date <= $range->enddate);
+    }
+
+    /**
+     * Check if provided date is in the recurring date range.
+     *
+     * @param int $date Unix timestamp date to check.
+     * @param \stdClass $range Range object.
+     *
+     * @return bool
+     */
+    protected function is_date_in_recurring_range($date, \stdClass $range) {
+        $intdate = $this->build_number_from_date($date);
+        $intstart = $this->build_number_from_date($range->startdate);
+        $intend = $this->build_number_from_date($range->enddate);
+
+        if (!$this->has_turn_of_the_year($range)) {
+            if ($intdate >= $intstart && $intdate <= $intend) {
+                return true;
+            }
+        } else {
+            if ($intdate >= $intstart && $intdate >= $intend) {
+                return true;
+            }
+
+            if ($intdate <= $intstart && $intdate <= $intend) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Check if provided recurring range has a turn of the year.
+     *
+     * @param \stdClass $reccurringrange Range object.
+     *
+     * @return bool
+     */
+    protected function has_turn_of_the_year(\stdClass $reccurringrange) {
+        return date('Y', $reccurringrange->startdate) != date('Y', $reccurringrange->enddate);
+    }
+
+    /**
+     * Check if provided date is in the start year of the recurring range with a turn of the year.
+     *
+     * @param int $date Unix timestamp date to check.
+     * @param \stdClass $range Range object.
+     *
+     * @return bool
+     */
+    protected function in_start_year($date, \stdClass $range) {
+        $intdate = $this->build_number_from_date($date);
+        $intstart = $this->build_number_from_date($range->startdate);
+        $intend = $this->build_number_from_date($range->enddate);
+
+        return $intdate >= $intstart && $intdate >= $intend;
+    }
+
+    /**
+     * Check if provided date is in the end year of the recurring range with a turn of the year.
+     *
+     * @param int $date Unix timestamp date to check.
+     * @param \stdClass $range Range object.
+     *
+     * @return bool
+     */
+    protected function in_end_year($date, \stdClass $range) {
+        $intdate = $this->build_number_from_date($date);
+        $intstart = $this->build_number_from_date($range->startdate);
+        $intend = $this->build_number_from_date($range->enddate);
+
+        return $intdate <= $intstart && $intdate <= $intend;
+    }
+
+    /**
+     * Return matched recurring date range.
+     *
+     * As recurring date ranges do not depend on the year,
+     * we will use a date's year to build a new matched recurring date range with
+     * start year and end year. This is required to replace placeholders like range_first_year and range_last_year.
+     *
+     * @param int $date Unix timestamp date to check.
+     * @param \stdClass $range Range object.
+     *
+     * @return \stdClass || null
+     */
+    protected function get_matched_recurring_range($date, \stdClass $range) {
+        if (!$this->is_date_in_recurring_range($date, $range)) {
+            return null;
+        }
+
+        $matchedrage = clone $range;
+
+        if ($this->has_turn_of_the_year($matchedrage)) {
+
+            if ($this->in_start_year($date, $matchedrage)) {
+                $startyear = date('Y', $date);
+                $endyear = $startyear + 1;
+                $matchedrage->startdate = strtotime(date('d.m.', $matchedrage->startdate) . $startyear);
+                $matchedrage->enddate = strtotime(date('d.m.', $matchedrage->enddate) . $endyear);
+
+                return $matchedrage;
+            }
+
+            if ($this->in_end_year($date, $matchedrage)) {
+                $endyear = date('Y', $date);
+                $startyear = $endyear - 1;
+                $matchedrage->startdate = strtotime(date('d.m.', $matchedrage->startdate) . $startyear);
+                $matchedrage->enddate = strtotime(date('d.m.', $matchedrage->enddate) . $endyear);
+
+                return $matchedrage;
+            }
+        } else {
+            $matchedrage->startdate = strtotime(date('d.m.', $matchedrage->startdate) . date('Y', $date));
+            $matchedrage->enddate = strtotime(date('d.m.', $matchedrage->enddate) . date('Y', $date));
+
+            return $matchedrage;
+        }
+
+        return null;
+    }
+
+    /**
+     * Build number representation of the provided date.
+     *
+     * @param int $date Unix timestamp date to check.
+     *
+     * @return int
+     */
+    protected function build_number_from_date($date) {
+        return (int)date('md', $date);
+    }
+
+    /**
+     * Format date string based on different types of placeholders.
+     *
+     * @param string $datestring The date string
+     * @param array $formatdata A list of format data.
+     *
+     * @return string
+     */
+    protected function format_date_string($datestring, array $formatdata) {
+        foreach ($this->get_placeholders() as $search => $replace) {
+            $datestring = str_replace($search, $replace, $datestring);
+        }
+
+        if (!empty($formatdata['date'])) {
+            foreach ($this->get_date_placeholders($formatdata['date']) as $search => $replace) {
+                $datestring = str_replace($search, $replace, $datestring);
+            }
+        }
+
+        if (!empty($formatdata['range'])) {
+            foreach ($this->get_range_placeholders($formatdata['range']) as $search => $replace) {
+                $datestring = str_replace($search, $replace, $datestring);
+            }
+        }
+
+        if (!empty($formatdata['recurringrange'])) {
+            foreach ($this->get_recurring_range_placeholders($formatdata['recurringrange']) as $search => $replace) {
+                $datestring = str_replace($search, $replace, $datestring);
+            }
+        }
+
+        return $datestring;
+    }
+
+    /**
+     * Return a list of placeholders to replace in date string as search => $replace pairs.
+     *
+     * @return array
+     */
+    protected function get_placeholders() {
+        return [
+            self::CURRENT_YEAR_PLACEHOLDER => date('Y', time()),
+        ];
+    }
+
+    /**
+     * Return a list of user's date related placeholders to replace in date string as search => $replace pairs.
+
+     * @param int $date Unix timestamp date to check.
+     *
+     * @return array
+     */
+    protected function get_date_placeholders($date) {
+        return [
+            self::DATE_YEAR_PLACEHOLDER => date('Y', $date),
+        ];
+    }
+
+    /**
+     * Return a list of range related placeholders to replace in date string as search => $replace pairs.
+     *
+     * @param \stdClass $range
+     *
+     * @return array
+     */
+    protected function get_range_placeholders(\stdClass $range) {
+        return [
+            self::RANGE_FIRST_YEAR_PLACEHOLDER => date('Y', $range->startdate),
+            self::RANGE_LAST_YEAR_PLACEHOLDER => date('Y', $range->enddate),
+        ];
+    }
+
+    /**
+     * Return a list of recurring range s placeholders to replace in date string as search => $replace pairs.
+     *
+     * @param \stdClass $range
+     *
+     * @return array
+     */
+    protected function get_recurring_range_placeholders(\stdClass $range) {
+        return [
+            self::RECUR_RANGE_FIRST_YEAR_PLACEHOLDER => date('Y', $range->startdate),
+            self::RECUR_RANGE_LAST_YEAR_PLACEHOLDER => date('Y', $range->enddate),
+        ];
+    }
+
+    /**
+     * Render the element in html.
+     *
+     * This function is used to render the element when we are using the
+     * drag and drop interface to position it.
+     *
+     * @return string the html
+     */
+    public function render_html() {
+        // If there is no element data, we have nothing to display.
+        if (empty($this->get_data())) {
+            return;
+        }
+
+        return element_helper::render_html_content($this, get_string('preview', 'customcertelement_daterange', $this->get_name()));
+    }
+
+    /**
+     * This function is responsible for handling the restoration process of the element.
+     *
+     * We will want to update the course module the date element is pointing to as it will
+     * have changed in the course restore.
+     *
+     * @param \restore_customcert_activity_task $restore
+     */
+    public function after_restore($restore) {
+        global $DB;
+
+        $data = $this->get_decoded_data();
+        if ($newitem = \restore_dbops::get_backup_ids_record($restore->get_restoreid(), 'course_module', $data->dateitem)) {
+            $data->dateitem = $newitem->newitemid;
+            $DB->set_field('customcert_elements', 'data', $this->save_unique_data($data), array('id' => $this->get_id()));
+        }
+    }
+
+}

element/daterange/classes/privacy/provider.php

@@ -0,0 +1,46 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy Subsystem implementation for customcertelement_daterange.
+ *
+ * @package    customcertelement_daterange
+ * @copyright  2018 Dmitrii Metelkin <dmitriim@catalyst-au.net>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_daterange\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Privacy Subsystem for customcertelement_daterange implementing null_provider.
+ *
+ * @copyright  2018 Dmitrii Metelkin <dmitriim@catalyst-au.net>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements \core_privacy\local\metadata\null_provider {
+
+    /**
+     * Get the language string identifier with the component's language
+     * file to explain why this plugin stores no data.
+     *
+     * @return  string
+     */
+    public static function get_reason() : string {
+        return 'privacy:metadata';
+    }
+}

element/daterange/lang/en/customcertelement_daterange.php

@@ -0,0 +1,53 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Strings for component 'customcertelement_daterange', language 'en'.
+ *
+ * @package    customcertelement_daterange
+ * @copyright  2018 Dmitrii Metelkin <dmitriim@catalyst-au.net>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+$string['addrange'] = 'Add another range';
+$string['completiondate'] = 'Completion date';
+$string['courseenddate'] = 'Course end date';
+$string['coursegradedate'] = 'Course grade date';
+$string['coursestartdate'] = 'Course start date';
+$string['currentdate'] = 'Current date';
+$string['dateitem'] = 'Date item';
+$string['dateitem_help'] = 'This will be the date that is printed on the certificate';
+$string['dateranges'] = 'Date ranges';
+$string['datestring'] = 'String';
+$string['end'] = 'End';
+$string['error:atleastone'] = 'You must have at least one date range configured';
+$string['error:datestring'] = 'You must provide string representation for the date range';
+$string['error:enddate'] = 'End date must occur after the start date';
+$string['error:recurring'] = 'Recurring range must not be longer than 12 months';
+$string['fallbackstring'] = 'Fallback string';
+$string['fallbackstring_help'] = 'This string will be displayed if no date range applies to a date. If the fallback string is not set, then there will be no output at all.';
+$string['help'] = 'Configure a string representation for your date ranges.<br /><br />If your ranges overlap the first matched date range will be applied.';
+$string['issueddate'] = 'Issued date';
+$string['placeholders'] = 'The following placeholders can be used in the string representation or fallback string. <br/><br /> {{range_first_year}} - first year of the matched range,<br/> {{range_last_year}} - last year of the matched range,<br/> {{recurring_range_first_year}} - first year of the matched recurring period,<br/> {{recurring_range_last_year}} - last year of the matched recurring period,<br/> {{current_year}} - the current year,<br/>  {{date_year}} - a year of the users\'s date.';
+$string['pluginname'] = 'Date range';
+$string['preview'] = 'Preview {$a}';
+$string['privacy:metadata'] = 'The Date range plugin does not store any personal data.';
+$string['recurring'] = 'Recurring';
+$string['recurring_help'] = 'If you mark a date range as recurring then the configured year will not be considered.';
+$string['setdeleted'] = 'Delete';
+$string['start'] = 'Start';

element/daterange/tests/element_test.php

@@ -0,0 +1,248 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Test datarange element.
+ *
+ * @package    customcertelement_daterange
+ * @copyright  2018 Dmitrii Metelkin <dmitriim@catalyst-au.net>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+defined('MOODLE_INTERNAL') || die();
+
+global $CFG;
+
+require_once($CFG->dirroot . '/mod/customcert/element/daterange/tests/fixtures/fake_datarange_element.php');
+
+/**
+ * Test datarange element.
+ *
+ * @package    customcertelement_daterange
+ * @copyright  2018 Dmitrii Metelkin <dmitriim@catalyst-au.net>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class customcertelement_daterange_element_test extends advanced_testcase {
+
+    /**
+     * Helper function to build element data.
+     *
+     * @param stdClass $data Element data.
+     *
+     * @return object
+     */
+    protected function build_element_data(stdClass $data) {
+        return (object) [
+            'id' => 1,
+            'pageid' => 1,
+            'name' => 'Test',
+            'data' => json_encode($data),
+            'font' => 'Font',
+            'fontsize' => 1,
+            'colour' => '#EEE',
+            'posx' => 0,
+            'posy' => 0,
+            'width' => 100,
+            'refpoint' => 1
+        ];
+    }
+
+    /**
+     * Helper function to build datarange data.
+     *
+     * @param array $dataranges A list of dataranges.
+     * @param string $fallbackstring Fall back string.
+     *
+     * @return object
+     */
+    protected function build_datarange_data(array $dataranges, $fallbackstring = '') {
+        return (object) [
+            'dateitem' => 1,
+            'fallbackstring' => $fallbackstring,
+            'numranges' => count($dataranges),
+            'dateranges' => $dataranges,
+        ];
+    }
+
+    /**
+     * A helper function to get datarange element for testing.
+     *
+     * @param array $dataranges A list of dataranges.
+     * @param string $fallbackstring Fall back strin
+     *
+     * @return \fake_datarange_element
+     */
+    protected function get_datarange_element(array $dataranges, $fallbackstring = '') {
+        $datarangedata = $this->build_datarange_data($dataranges, $fallbackstring);
+        $elementdata = $this->build_element_data($datarangedata);
+
+        return new fake_datarange_element($elementdata);
+    }
+
+    /**
+     * Data provider for test_get_daterange_string_for_recurring_ranges.
+     * @return array
+     */
+    public function get_test_get_daterange_string_for_recurring_ranges_data_provider() {
+        return [
+            ['1.11.2016', 'WS 2016/2017'],
+            ['1.11.2017', 'WS 2017/2018'],
+            ['1.11.2018', 'WS 2018/2019'],
+            ['1.11.2019', 'WS 2019/2020'],
+            ['1.02.2017', 'WS 2016/2017'],
+            ['1.02.2018', 'WS 2017/2018'],
+            ['1.02.2019', 'WS 2018/2019'],
+            ['1.02.2020', 'WS 2019/2020'],
+            ['1.05.2016', 'SS 2016'],
+            ['1.05.2017', 'SS 2017'],
+            ['1.05.2018', 'SS 2018'],
+            ['1.05.2019', 'SS 2019'],
+        ];
+    }
+
+    /**
+     * Test get correct strings for recurring ranges.
+     *
+     * @dataProvider get_test_get_daterange_string_for_recurring_ranges_data_provider
+     *
+     * @param string $date Date to test.
+     * @param string $expected Expected result.
+     */
+    public function test_get_daterange_string_for_recurring_ranges($date, $expected) {
+        $dateranges = [
+            (object)[
+                'startdate' => strtotime('01.04.2017'),
+                'enddate' => strtotime('30.09.2017'),
+                'datestring' => 'SS {{date_year}}',
+                'recurring' => true,
+            ],
+            (object)[
+                'startdate' => strtotime('01.10.2017'),
+                'enddate' => strtotime('31.03.2018'),
+                'datestring' => 'WS {{recurring_range_first_year}}/{{recurring_range_last_year}}',
+                'recurring' => true,
+            ],
+        ];
+
+        $element = $this->get_datarange_element($dateranges);
+        $date = strtotime($date);
+        $this->assertEquals($expected, $element->get_daterange_string($date));
+    }
+
+    /**
+     * Test that first found element matched.
+     */
+    public function test_that_first_matched_range_applied_first() {
+        $dateranges = [
+            (object)[
+                'startdate' => strtotime('01.04.2017'),
+                'enddate' => strtotime('30.09.2017'),
+                'datestring' => 'First range',
+                'recurring' => false,
+            ],
+            (object)[
+                'startdate' => strtotime('01.05.2017'),
+                'enddate' => strtotime('01.07.2018'),
+                'datestring' => 'Second range',
+                'recurring' => false,
+            ],
+        ];
+
+        $element = $this->get_datarange_element($dateranges);
+        $date = strtotime('1.06.2017');
+        $this->assertEquals('First range', $element->get_daterange_string($date));
+    }
+
+    /**
+     * Test that placeholders correctly applied to matched range and fall back string.
+     */
+    public function test_placeholders_and_fall_back_string() {
+        $dateranges = [
+            (object)[
+                'startdate' => strtotime('01.04.2017'),
+                'enddate' => strtotime('30.09.2018'),
+                'datestring' => '{{current_year}} - {{range_first_year}} - {{range_last_year}} - {{date_year}}',
+                'recurring' => false,
+            ],
+        ];
+
+        $fallbackstring = '{{current_year}} - {{range_first_year}} - {{range_last_year}} - {{date_year}}';
+        $element = $this->get_datarange_element($dateranges, $fallbackstring);
+
+        $date = strtotime('1.01.2000');
+        $expected = date('Y', time()) . ' - {{range_first_year}} - {{range_last_year}} - 2000';
+        $this->assertEquals($expected, $element->get_daterange_string($date));
+
+        $date = strtotime('1.07.2017');
+        $expected = date('Y', time()) . ' - 2017 - 2018 - 2017';
+        $this->assertEquals($expected, $element->get_daterange_string($date));
+    }
+
+    /**
+     * Test that nothing will be displayed if not matched and empty fall back string.
+     */
+    public function test_nothing_will_be_displayed_if_empty_fallback_string() {
+        $dateranges = [
+            (object)[
+                'startdate' => strtotime('01.04.2017'),
+                'enddate' => strtotime('30.09.2018'),
+                'datestring' => '{{current_year}} - {{range_first_year}} - {{range_last_year}} - {{date_year}}',
+                'recurring' => false,
+            ],
+        ];
+
+        $fallbackstring = '';
+        $element = $this->get_datarange_element($dateranges, $fallbackstring);
+
+        $date = strtotime('1.07.2011');
+        $this->assertEquals($fallbackstring, $element->get_daterange_string($date));
+    }
+
+    /**
+     * Test that display recurring_range_first_year and recurring_range_last_year placeholders.
+     */
+    public function test_recurring_range_first_year_and_recurring_range_last_year_placeholders() {
+        $datestring = '{{range_first_year}}-{{range_last_year}}-{{recurring_range_first_year}}-{{recurring_range_last_year}}';
+        $dateranges = [
+            (object) [
+                'startdate' => strtotime('01.04.2017'),
+                'enddate' => strtotime('30.09.2017'),
+                'datestring' => $datestring,
+                'recurring' => true,
+            ],
+            (object)[
+                'startdate' => strtotime('01.10.2017'),
+                'enddate' => strtotime('31.03.2018'),
+                'datestring' => $datestring,
+                'recurring' => true,
+            ],
+        ];
+
+        $element = $this->get_datarange_element($dateranges);
+
+        $date = strtotime('1.05.2020');
+        $this->assertEquals('2017-2017-2020-2020', $element->get_daterange_string($date));
+
+        $date = strtotime('1.05.2024');
+        $this->assertEquals('2017-2017-2024-2024', $element->get_daterange_string($date));
+
+        $date = strtotime('1.02.2020');
+        $this->assertEquals('2017-2018-2019-2020', $element->get_daterange_string($date));
+
+        $date = strtotime('1.02.2024');
+        $this->assertEquals('2017-2018-2023-2024', $element->get_daterange_string($date));
+    }
+
+}

element/daterange/tests/fixtures/fake_datarange_element.php

@@ -0,0 +1,47 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Fake datarange element for testing.
+ *
+ * @package    customcertelement_daterange
+ * @copyright  2018 Dmitrii Metelkin <dmitriim@catalyst-au.net>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Fake datarange element for testing.
+ *
+ * @package    customcertelement_daterange
+ * @copyright  2018 Dmitrii Metelkin <dmitriim@catalyst-au.net>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class fake_datarange_element extends \customcertelement_daterange\element {
+
+    /**
+     * Override protected method for testing.
+     *
+     * @param int $date
+     *
+     * @return string
+     */
+    public function get_daterange_string($date) {
+        $result = parent::get_daterange_string($date);
+        return $result;
+    }
+}

element/daterange/version.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the version information for the date plugin.
+ *
+ * @package    customcertelement_daterange
+ * @copyright  2018 Dmitrii Metelkin <dmitriim@catalyst-au.net>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+$plugin->version   = 2019052000; // The current module version (Date: YYYYMMDDXX).
+$plugin->requires  = 2019052000; // Requires this Moodle version (3.7).
+$plugin->component = 'customcertelement_daterange';

element/digitalsignature/classes/element.php

@@ -0,0 +1,338 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the customcert element digitial signature's core interaction API.
+ *
+ * @package    customcertelement_digitalsignature
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_digitalsignature;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * The customcert element digital signature's core interaction API.
+ *
+ * @package    customcertelement_digitalsignature
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class element extends \customcertelement_image\element {
+
+    /**
+     * @var array The file manager options for the certificate.
+     */
+    protected $signaturefilemanageroptions = array();
+
+    /**
+     * Constructor.
+     *
+     * @param \stdClass $element the element data
+     */
+    public function __construct($element) {
+        global $COURSE;
+
+        $this->signaturefilemanageroptions = [
+            'maxbytes' => $COURSE->maxbytes,
+            'subdirs' => 1,
+            'accepted_types' => ['.crt']
+        ];
+
+        parent::__construct($element);
+    }
+
+    /**
+     * This function renders the form elements when adding a customcert element.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance
+     */
+    public function render_form_elements($mform) {
+        $mform->addElement('select', 'fileid', get_string('image', 'customcertelement_image'), self::get_images());
+
+        $mform->addElement('select', 'signaturefileid', get_string('digitalsignature', 'customcertelement_digitalsignature'),
+            self::get_signatures());
+
+        $mform->addElement('text', 'signaturename', get_string('signaturename', 'customcertelement_digitalsignature'));
+        $mform->setType('signaturename', PARAM_TEXT);
+        $mform->setDefault('signaturename', '');
+
+        $mform->addElement('passwordunmask', 'signaturepassword',
+            get_string('signaturepassword', 'customcertelement_digitalsignature'));
+        $mform->setType('signaturepassword', PARAM_TEXT);
+        $mform->setDefault('signaturepassword', '');
+
+        $mform->addElement('text', 'signaturelocation', get_string('signaturelocation', 'customcertelement_digitalsignature'));
+        $mform->setType('signaturelocation', PARAM_TEXT);
+        $mform->setDefault('signaturelocation', '');
+
+        $mform->addElement('text', 'signaturereason', get_string('signaturereason', 'customcertelement_digitalsignature'));
+        $mform->setType('signaturereason', PARAM_TEXT);
+        $mform->setDefault('signaturereason', '');
+
+        $mform->addElement('text', 'signaturecontactinfo',
+            get_string('signaturecontactinfo', 'customcertelement_digitalsignature'));
+        $mform->setType('signaturecontactinfo', PARAM_TEXT);
+        $mform->setDefault('signaturecontactinfo', '');
+
+        $mform->addElement('text', 'width', get_string('width', 'customcertelement_image'), array('size' => 10));
+        $mform->setType('width', PARAM_INT);
+        $mform->setDefault('width', 0);
+        $mform->addHelpButton('width', 'width', 'customcertelement_image');
+
+        $mform->addElement('text', 'height', get_string('height', 'customcertelement_image'), array('size' => 10));
+        $mform->setType('height', PARAM_INT);
+        $mform->setDefault('height', 0);
+        $mform->addHelpButton('height', 'height', 'customcertelement_image');
+
+        if (get_config('customcert', 'showposxy')) {
+            \mod_customcert\element_helper::render_form_element_position($mform);
+        }
+
+        $mform->addElement('filemanager', 'customcertimage', get_string('uploadimage', 'customcert'), '',
+            $this->filemanageroptions);
+
+        $mform->addElement('filemanager', 'digitalsignature',
+            get_string('uploaddigitalsignature', 'customcertelement_digitalsignature'), '',
+            $this->signaturefilemanageroptions);
+    }
+
+    /**
+     * Handles saving the form elements created by this element.
+     * Can be overridden if more functionality is needed.
+     *
+     * @param \stdClass $data the form data
+     * @return bool true of success, false otherwise.
+     */
+    public function save_form_elements($data) {
+        global $COURSE, $SITE;
+
+        // Set the context.
+        if ($COURSE->id == $SITE->id) {
+            $context = \context_system::instance();
+        } else {
+            $context = \context_course::instance($COURSE->id);
+        }
+
+        // Handle file uploads.
+        \mod_customcert\certificate::upload_files($data->customcertimage, $context->id);
+
+        // Handle file certificate uploads.
+        \mod_customcert\certificate::upload_files($data->digitalsignature, $context->id, 'signature');
+
+        return parent::save_form_elements($data);
+    }
+
+    /**
+     * This will handle how form data will be saved into the data column in the
+     * customcert_elements table.
+     *
+     * @param \stdClass $data the form data
+     * @return string the json encoded array
+     */
+    public function save_unique_data($data) {
+        $arrtostore = [
+            'signaturename' => $data->signaturename,
+            'signaturepassword' => $data->signaturepassword,
+            'signaturelocation' => $data->signaturelocation,
+            'signaturereason' => $data->signaturereason,
+            'signaturecontactinfo' => $data->signaturecontactinfo,
+            'width' => !empty($data->width) ? (int) $data->width : 0,
+            'height' => !empty($data->height) ? (int) $data->height : 0
+        ];
+
+        // Array of data we will be storing in the database.
+        $fs = get_file_storage();
+
+        if (!empty($data->fileid)) {
+            if ($file = $fs->get_file_by_id($data->fileid)) {
+                $arrtostore += [
+                    'contextid' => $file->get_contextid(),
+                    'filearea' => $file->get_filearea(),
+                    'itemid' => $file->get_itemid(),
+                    'filepath' => $file->get_filepath(),
+                    'filename' => $file->get_filename(),
+                ];
+            }
+        }
+
+        if (!empty($data->signaturefileid)) {
+            if ($signaturefile = $fs->get_file_by_id($data->signaturefileid)) {
+                $arrtostore += [
+                    'signaturecontextid' => $signaturefile->get_contextid(),
+                    'signaturefilearea' => $signaturefile->get_filearea(),
+                    'signatureitemid' => $signaturefile->get_itemid(),
+                    'signaturefilepath' => $signaturefile->get_filepath(),
+                    'signaturefilename' => $signaturefile->get_filename()
+                ];
+            }
+        }
+
+        return json_encode($arrtostore);
+    }
+
+    /**
+     * Handles rendering the element on the pdf.
+     *
+     * @param \pdf $pdf the pdf object
+     * @param bool $preview true if it is a preview, false otherwise
+     * @param \stdClass $user the user we are rendering this for
+     */
+    public function render($pdf, $preview, $user) {
+        // If there is no element data, we have nothing to display.
+        if (empty($this->get_data())) {
+            return;
+        }
+
+        $imageinfo = json_decode($this->get_data());
+
+        // If there is no file, we have nothing to display.
+        if (empty($imageinfo->filename)) {
+            return;
+        }
+
+        // If there is no signature file, we have nothing to display.
+        if (empty($imageinfo->signaturefilename)) {
+            return;
+        }
+
+        if ($file = $this->get_file()) {
+            $location = make_request_directory() . '/target';
+            $file->copy_content_to($location);
+
+            $mimetype = $file->get_mimetype();
+            if ($mimetype == 'image/svg+xml') {
+                $pdf->ImageSVG($location, $this->get_posx(), $this->get_posy(), $imageinfo->width, $imageinfo->height);
+            } else {
+                $pdf->Image($location, $this->get_posx(), $this->get_posy(), $imageinfo->width, $imageinfo->height);
+            }
+        }
+
+        if ($signaturefile = $this->get_signature_file()) {
+            $location = make_request_directory() . '/target';
+            $signaturefile->copy_content_to($location);
+            $info = [
+                'Name' => $imageinfo->signaturename,
+                'Location' => $imageinfo->signaturelocation,
+                'Reason' => $imageinfo->signaturereason,
+                'ContactInfo' => $imageinfo->signaturecontactinfo
+            ];
+            $pdf->setSignature('file://' . $location, '', $imageinfo->signaturepassword, '', 2, $info);
+            $pdf->setSignatureAppearance($this->get_posx(), $this->get_posy(), $imageinfo->width, $imageinfo->height);
+        }
+    }
+
+    /**
+     * Sets the data on the form when editing an element.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance
+     */
+    public function definition_after_data($mform) {
+        global $COURSE, $SITE;
+
+        // Set the context.
+        if ($COURSE->id == $SITE->id) {
+            $context = \context_system::instance();
+        } else {
+            $context = \context_course::instance($COURSE->id);
+        }
+
+        if (!empty($this->get_data())) {
+            $imageinfo = json_decode($this->get_data());
+
+            $element = $mform->getElement('signaturename');
+            $element->setValue($imageinfo->signaturename);
+
+            $element = $mform->getElement('signaturepassword');
+            $element->setValue($imageinfo->signaturepassword);
+
+            $element = $mform->getElement('signaturelocation');
+            $element->setValue($imageinfo->signaturelocation);
+
+            $element = $mform->getElement('signaturereason');
+            $element->setValue($imageinfo->signaturereason);
+
+            $element = $mform->getElement('signaturecontactinfo');
+            $element->setValue($imageinfo->signaturecontactinfo);
+
+            if (!empty($imageinfo->signaturefilename)) {
+                if ($signaturefile = $this->get_signature_file()) {
+                    $element = $mform->getElement('signaturefileid');
+                    $element->setValue($signaturefile->get_id());
+                }
+            }
+        }
+
+        // Editing existing instance - copy existing files into draft area.
+        $draftitemid = file_get_submitted_draft_itemid('digitalsignature');
+        file_prepare_draft_area($draftitemid, $context->id, 'mod_customcert', 'signature', 0,
+            $this->signaturefilemanageroptions);
+        $element = $mform->getElement('digitalsignature');
+        $element->setValue($draftitemid);
+
+        parent::definition_after_data($mform);
+    }
+
+    /**
+     * Return the list of possible images to use.
+     *
+     * @return array the list of images that can be used
+     */
+    public static function get_signatures() {
+        global $COURSE;
+
+        // Create file storage object.
+        $fs = get_file_storage();
+
+        // The array used to store the digital signatures.
+        $arrfiles = array();
+        // Loop through the files uploaded in the system context.
+        if ($files = $fs->get_area_files(\context_system::instance()->id, 'mod_customcert', 'signature', false,
+                'filename', false)) {
+            foreach ($files as $hash => $file) {
+                $arrfiles[$file->get_id()] = $file->get_filename();
+            }
+        }
+        // Loop through the files uploaded in the course context.
+        if ($files = $fs->get_area_files(\context_course::instance($COURSE->id)->id, 'mod_customcert', 'signature', false,
+                'filename', false)) {
+            foreach ($files as $hash => $file) {
+                $arrfiles[$file->get_id()] = $file->get_filename();
+            }
+        }
+
+        \core_collator::asort($arrfiles);
+        $arrfiles = array('0' => get_string('nosignature', 'customcertelement_digitalsignature')) + $arrfiles;
+
+        return $arrfiles;
+    }
+
+    /**
+     * Fetch stored file.
+     *
+     * @return \stored_file|bool stored_file instance if exists, false if not
+     */
+    public function get_signature_file() {
+        $imageinfo = json_decode($this->get_data());
+
+        $fs = get_file_storage();
+
+        return $fs->get_file($imageinfo->signaturecontextid, 'mod_customcert', $imageinfo->signaturefilearea,
+            $imageinfo->signatureitemid, $imageinfo->signaturefilepath, $imageinfo->signaturefilename);
+    }
+}

element/digitalsignature/classes/privacy/provider.php

@@ -0,0 +1,46 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy Subsystem implementation for customcertelement_digitalsignature.
+ *
+ * @package    customcertelement_digitalsignature
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_digitalsignature\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Privacy Subsystem for customcertelement_digitalsignature implementing null_provider.
+ *
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements \core_privacy\local\metadata\null_provider {
+
+    /**
+     * Get the language string identifier with the component's language
+     * file to explain why this plugin stores no data.
+     *
+     * @return  string
+     */
+    public static function get_reason() : string {
+        return 'privacy:metadata';
+    }
+}

element/digitalsignature/lang/en/customcertelement_digitalsignature.php

@@ -0,0 +1,34 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Strings for component 'customcertelement_digitalsignature', language 'en'.
+ *
+ * @package    customcertelement_digitalsignature
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['digitalsignature'] = 'Digital signature';
+$string['nosignature'] = 'No signature';
+$string['pluginname'] = 'Digital signature';
+$string['privacy:metadata'] = 'The Digital signature plugin does not store any personal data.';
+$string['signaturename'] = 'Signature name';
+$string['signaturepassword'] = 'Signature password';
+$string['signaturelocation'] = 'Signature location';
+$string['signaturereason'] = 'Signature reason';
+$string['signaturecontactinfo'] = 'Signature contact info';
+$string['uploaddigitalsignature'] = 'Upload digital signature';

element/digitalsignature/version.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the version information for the digital signature plugin.
+ *
+ * @package    customcertelement_digitalsignature
+ * @copyright  2017 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+$plugin->version   = 2019052000; // The current module version (Date: YYYYMMDDXX).
+$plugin->requires  = 2019052000; // Requires this Moodle version (3.7).
+$plugin->component = 'customcertelement_digitalsignature';

element/grade/classes/element.php

@@ -0,0 +1,218 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the customcert element grade's core interaction API.
+ *
+ * @package    customcertelement_grade
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_grade;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Grade - Course
+ */
+define('CUSTOMCERT_GRADE_COURSE', '0');
+
+/**
+ * The customcert element grade's core interaction API.
+ *
+ * @package    customcertelement_grade
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class element extends \mod_customcert\element {
+
+    /**
+     * This function renders the form elements when adding a customcert element.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance
+     */
+    public function render_form_elements($mform) {
+        global $COURSE;
+
+        // Get the grade items we can display.
+        $gradeitems = array();
+        $gradeitems[CUSTOMCERT_GRADE_COURSE] = get_string('coursegrade', 'customcertelement_grade');
+        $gradeitems = $gradeitems + \mod_customcert\element_helper::get_grade_items($COURSE);
+
+        // The grade items.
+        $mform->addElement('select', 'gradeitem', get_string('gradeitem', 'customcertelement_grade'), $gradeitems);
+        $mform->addHelpButton('gradeitem', 'gradeitem', 'customcertelement_grade');
+
+        // The grade format.
+        $mform->addElement('select', 'gradeformat', get_string('gradeformat', 'customcertelement_grade'),
+            self::get_grade_format_options());
+        $mform->setType('gradeformat', PARAM_INT);
+        $mform->addHelpButton('gradeformat', 'gradeformat', 'customcertelement_grade');
+
+        parent::render_form_elements($mform);
+    }
+
+    /**
+     * This will handle how form data will be saved into the data column in the
+     * customcert_elements table.
+     *
+     * @param \stdClass $data the form data.
+     * @return string the json encoded array
+     */
+    public function save_unique_data($data) {
+        // Array of data we will be storing in the database.
+        $arrtostore = array(
+            'gradeitem' => $data->gradeitem,
+            'gradeformat' => $data->gradeformat
+        );
+
+        // Encode these variables before saving into the DB.
+        return json_encode($arrtostore);
+    }
+
+    /**
+     * Handles rendering the element on the pdf.
+     *
+     * @param \pdf $pdf the pdf object
+     * @param bool $preview true if it is a preview, false otherwise
+     * @param \stdClass $user the user we are rendering this for
+     */
+    public function render($pdf, $preview, $user) {
+        // If there is no element data, we have nothing to display.
+        if (empty($this->get_data())) {
+            return;
+        }
+
+        $courseid = \mod_customcert\element_helper::get_courseid($this->id);
+
+        // Decode the information stored in the database.
+        $gradeinfo = json_decode($this->get_data());
+        $gradeitem = $gradeinfo->gradeitem;
+        $gradeformat = $gradeinfo->gradeformat;
+
+        // If we are previewing this certificate then just show a demonstration grade.
+        if ($preview) {
+            $courseitem = \grade_item::fetch_course_item($courseid);
+            $grade = grade_format_gradevalue('100', $courseitem, true, $gradeinfo->gradeformat);;
+        } else {
+            if ($gradeitem == CUSTOMCERT_GRADE_COURSE) {
+                $grade = \mod_customcert\element_helper::get_course_grade_info(
+                    $courseid,
+                    $gradeformat,
+                    $user->id
+                );
+            } else if (strpos($gradeitem, 'gradeitem:') === 0) {
+                $gradeitemid = substr($gradeitem, 10);
+                $grade = \mod_customcert\element_helper::get_grade_item_info(
+                    $gradeitemid,
+                    $gradeformat,
+                    $user->id
+                );
+            } else {
+                $grade = \mod_customcert\element_helper::get_mod_grade_info(
+                    $gradeitem,
+                    $gradeformat,
+                    $user->id
+                );
+            }
+
+            if ($grade) {
+                $grade = $grade->get_displaygrade();
+            }
+        }
+
+        \mod_customcert\element_helper::render_content($pdf, $this, $grade);
+    }
+
+    /**
+     * Render the element in html.
+     *
+     * This function is used to render the element when we are using the
+     * drag and drop interface to position it.
+     *
+     * @return string the html
+     */
+    public function render_html() {
+        global $COURSE;
+
+        // If there is no element data, we have nothing to display.
+        if (empty($this->get_data())) {
+            return;
+        }
+
+        // Decode the information stored in the database.
+        $gradeinfo = json_decode($this->get_data());
+
+        $courseitem = \grade_item::fetch_course_item($COURSE->id);
+
+        $grade = grade_format_gradevalue('100', $courseitem, true, $gradeinfo->gradeformat);
+
+        return \mod_customcert\element_helper::render_html_content($this, $grade);
+    }
+
+    /**
+     * Sets the data on the form when editing an element.
+     *
+     * @param \MoodleQuickForm $mform the edit_form instance
+     */
+    public function definition_after_data($mform) {
+        // Set the item and format for this element.
+        if (!empty($this->get_data())) {
+            $gradeinfo = json_decode($this->get_data());
+
+            $element = $mform->getElement('gradeitem');
+            $element->setValue($gradeinfo->gradeitem);
+
+            $element = $mform->getElement('gradeformat');
+            $element->setValue($gradeinfo->gradeformat);
+        }
+
+        parent::definition_after_data($mform);
+    }
+
+    /**
+     * This function is responsible for handling the restoration process of the element.
+     *
+     * We will want to update the course module the grade element is pointing to as it will
+     * have changed in the course restore.
+     *
+     * @param \restore_customcert_activity_task $restore
+     */
+    public function after_restore($restore) {
+        global $DB;
+
+        $gradeinfo = json_decode($this->get_data());
+        if ($newitem = \restore_dbops::get_backup_ids_record($restore->get_restoreid(), 'course_module', $gradeinfo->gradeitem)) {
+            $gradeinfo->gradeitem = $newitem->newitemid;
+            $DB->set_field('customcert_elements', 'data', $this->save_unique_data($gradeinfo), array('id' => $this->get_id()));
+        }
+    }
+
+    /**
+     * Helper function to return all the possible grade formats.
+     *
+     * @return array returns an array of grade formats
+     */
+    public static function get_grade_format_options() {
+        $gradeformat = array();
+        $gradeformat[GRADE_DISPLAY_TYPE_REAL] = get_string('gradepoints', 'customcertelement_grade');
+        $gradeformat[GRADE_DISPLAY_TYPE_PERCENTAGE] = get_string('gradepercent', 'customcertelement_grade');
+        $gradeformat[GRADE_DISPLAY_TYPE_LETTER] = get_string('gradeletter', 'customcertelement_grade');
+
+        return $gradeformat;
+    }
+}

element/grade/classes/privacy/provider.php

@@ -0,0 +1,46 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy Subsystem implementation for customcertelement_grade.
+ *
+ * @package    customcertelement_grade
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace customcertelement_grade\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Privacy Subsystem for customcertelement_grade implementing null_provider.
+ *
+ * @copyright  2018 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements \core_privacy\local\metadata\null_provider {
+
+    /**
+     * Get the language string identifier with the component's language
+     * file to explain why this plugin stores no data.
+     *
+     * @return  string
+     */
+    public static function get_reason() : string {
+        return 'privacy:metadata';
+    }
+}

element/grade/lang/en/customcertelement_grade.php

@@ -0,0 +1,36 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Strings for component 'customcertelement_grade', language 'en'.
+ *
+ * @package    customcertelement_grade
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+$string['coursegrade'] = 'Course grade';
+$string['gradeitem'] = 'Grade item';
+$string['gradeitem_help'] = 'The grade item you wish to display the grade of.';
+$string['gradeformat'] = 'Grade format';
+$string['gradeformat_help'] = 'The format you wish to use when displaying the grade.';
+$string['gradeitem'] = 'Grade item';
+$string['gradepercent'] = 'Percentage';
+$string['gradepoints'] = 'Points';
+$string['gradeletter'] = 'Letter';
+$string['pluginname'] = 'Grade';
+$string['previewgrade'] = 'Preview grade';
+$string['privacy:metadata'] = 'The Grade plugin does not store any personal data.';

element/grade/version.php

@@ -0,0 +1,29 @@
+<?php
+// This file is part of the customcert module for Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * This file contains the version information for the grade plugin.
+ *
+ * @package    customcertelement_grade
+ * @copyright  2013 Mark Nelson <markn@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
+
+$plugin->version   = 2019052000; // The current module version (Date: YYYYMMDDXX).
+$plugin->requires  = 2019052000; // Requires this Moodle version (3.7).
+$plugin->component = 'customcertelement_grade';