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Add date range element (#185)

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Dmitrii Metelkin 2018-07-18 22:42:29 +10:00 committed by Mark Nelson
parent 6d0c4160f7
commit d91639e4ed
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element/daterange/classes/element.php Normal file
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<?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 {
/**
* Default max number of dateranges per element.
*/
const DEFAULT_MAX_RANGES = 10;
/**
* 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;
/**
* This function renders the form elements when adding a customcert element.
*
* @param \mod_customcert\edit_element_form $mform the edit_form instance
*/
public function render_form_elements($mform) {
global $COURSE;
// Get the possible date options.
$dateoptions = array();
$dateoptions[self::DATE_ISSUE] = get_string('issueddate', 'customcertelement_daterange');
$dateoptions[self::DATE_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('text', 'fallbackstring', get_string('fallbackstring', 'customcertelement_daterange'));
$mform->addHelpButton('fallbackstring', 'fallbackstring', 'customcertelement_daterange');
$mform->setType('fallbackstring', PARAM_NOTAGS);
if (!$maxranges = get_config('customcertelement_daterange', 'maxranges')) {
$maxranges = self::DEFAULT_MAX_RANGES;
}
if (!empty($this->get_data())) {
if ($maxranges < $this->get_decoded_data()->numranges) {
$maxranges = $this->get_decoded_data()->numranges;
}
}
$mform->addElement('hidden', 'numranges', $maxranges);
$mform->setType('numranges', PARAM_INT);
for ($i = 0; $i < $maxranges; $i++) {
$datarange = array();
$datarange[] = $mform->createElement(
'date_selector',
$this->build_element_name('startdate', $i),
get_string('start', 'customcertelement_daterange')
);
$datarange[] = $mform->createElement(
'date_selector',
$this->build_element_name('enddate', $i),
get_string('end', 'customcertelement_daterange')
);
$datarange[] = $mform->createElement(
'text',
$this->build_element_name('datestring', $i),
get_string('datestring', 'customcertelement_daterange')
);
$datarange[] = $mform->createElement(
'checkbox',
$this->build_element_name('enabled', $i),
get_string('enable')
);
$mform->addElement(
'group',
$this->build_element_name('group', $i),
get_string('daterange', 'customcertelement_daterange', $i + 1),
$datarange, '', false);
$mform->disabledIf($this->build_element_name('group', $i), $this->build_element_name('enabled', $i), 'notchecked');
$mform->setType($this->build_element_name('datestring', $i), PARAM_NOTAGS);
}
}
/**
* 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 \mod_customcert\edit_element_form $mform the edit_form instance
*/
public function definition_after_data($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);
$element = $mform->getElement('numranges');
$numranges = $element->getValue();
if ($numranges < $this->get_decoded_data()->numranges) {
$element->setValue($this->get_decoded_data()->numranges);
}
foreach ($this->get_decoded_data()->dateranges as $key => $range) {
$groupelement = $mform->getElement($this->build_element_name('group', $key));
$groupelements = $groupelement->getElements();
$mform->setDefault($groupelements[0]->getName(), $range->startdate);
$mform->setDefault($groupelements[1]->getName(), $range->enddate);
$mform->setDefault($groupelements[2]->getName(), $range->datestring);
$mform->setDefault($groupelements[3]->getName(), $range->enabled);
}
}
parent::definition_after_data($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.
$error = get_string('error:enabled', 'customcertelement_daterange');
for ($i = 0; $i < $data['numranges']; $i++) {
if (!empty($data[$this->build_element_name('enabled', $i)])) {
$error = '';
}
}
if (!empty($error)) {
$errors['help'] = $error;
}
// Check that datestring is set for enabled dataranges.
for ($i = 0; $i < $data['numranges']; $i++) {
$enabled = $this->build_element_name('enabled', $i);
$datestring = $this->build_element_name('datestring', $i);
if (!empty($data[$enabled]) && empty($data[$datestring])) {
$errors[$this->build_element_name('group', $i)] = get_string('error:datestring', 'customcertelement_daterange');
}
}
// Check that date is correctly set.
for ($i = 0; $i < $data['numranges']; $i++) {
$enabled = $this->build_element_name('enabled', $i);
$startdate = $this->build_element_name('startdate', $i);
$enddate = $this->build_element_name('enddate', $i);
if (!empty($data[$enabled]) && $data[$startdate] >= $data[$enddate] ) {
$errors[$this->build_element_name('group', $i)] = get_string('error:enddate', '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' => $data->fallbackstring,
'numranges' => 0,
'dateranges' => [],
);
for ($i = 0; $i < $data->numranges; $i++) {
$startdate = $this->build_element_name('startdate', $i);
$enddate = $this->build_element_name('enddate', $i);
$datestring = $this->build_element_name('datestring', $i);
$enabled = $this->build_element_name('enabled', $i);
if (!empty($data->$datestring)) {
$arrtostore['dateranges'][] = [
'startdate' => $data->$startdate,
'enddate' => $data->$enddate,
'datestring' => $data->$datestring,
'enabled' => !empty($data->$enabled),
];
$arrtostore['numranges']++;
}
}
// Encode these variables before saving into the DB.
return json_encode($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_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) {
$outputstring = '';
foreach ($this->get_decoded_data()->dateranges as $key => $range) {
if ($date >= $range->startdate && $date <= $range->enddate) {
$outputstring = $range->datestring;
}
}
if (!empty($this->get_decoded_data()->fallbackstring)) {
$outputstring = $this->get_decoded_data()->fallbackstring;
}
return $outputstring;
}
/**
* Render the element in html.
*
* This function is used to render the element when we are using the
* drag and drop interface to position it.
*
* @return string the html
*/
public function render_html() {
// If there is no element data, we have nothing to display.
if (empty($this->get_data())) {
return;
}
return element_helper::render_html_content($this, get_string('preview', 'customcertelement_daterange'));
}
/**
* This 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()));
}
}
}

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element/daterange/classes/privacy/provider.php Normal file
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<?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';
}
}

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element/daterange/lang/en/customcertelement_daterange.php Normal file
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<?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['completiondate'] = 'Completion date';
$string['courseenddate'] = 'Course end date';
$string['coursegradedate'] = 'Course grade date';
$string['coursestartdate'] = 'Course start date';
$string['dateitem'] = 'Date item';
$string['dateitem_help'] = 'This will be the date that is printed on the certificate';
$string['dateranges'] = 'Dateranges';
$string['fallbackstring'] = 'Fallback string';
$string['fallbackstring_help'] = 'This string will be displayed if no daterange applied to a date. If Fallback string is not set, then there will be no output at all.';
$string['help'] = 'Configure a string representation for each daterange. Set start and end dates as well as a string you would like to transform each range to. Make sure your ranges do not overlap, otherwise the first detected daterange will be applied. If no daterange applied to a date, then Fallback string will be displayed. If Fallback string is not set, then there will be no output at all.';
$string['issueddate'] = 'Issued date';
$string['maxranges'] = 'Maximum number ranges';
$string['maxranges_desc'] = 'Set a maximum number of date ranges per each element';
$string['pluginname'] = 'Date range';
$string['privacy:metadata'] = 'The Date range plugin does not store any personal data.';
$string['start'] = 'Start';
$string['end'] = 'End';
$string['datestring'] = 'String representation';
$string['daterange'] = 'Daterange {$a}';
$string['error:enabled'] = 'You must have at least one datarange enabled';
$string['error:datestring'] = 'You must provide string representation for the enabled datarange';
$string['error:enddate'] = 'End date must be after Start date';
$string['preview'] = 'Preview daterange string';

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element/daterange/settings.php Normal file
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<?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/>.
/**
* Admin settings.
*
* @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.');
$options = [];
foreach (range(1, 365) as $number) {
$options[$number] = $number;
}
$settings->add(new admin_setting_configselect(
'customcertelement_daterange/maxranges',
get_string('maxranges', 'customcertelement_daterange'),
get_string('maxranges_desc', 'customcertelement_daterange'),
1,
$options
));

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element/daterange/version.php Normal file
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<?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 = 2018071700; // The current module version (Date: YYYYMMDDXX).
$plugin->requires = 2018051700; // Requires this Moodle version (3.4).
$plugin->component = 'customcertelement_daterange';