moodle-local_mycerts/element/date/classes/element.php
2020-08-08 18:57:05 +02:00

409 lines
16 KiB
PHP

<?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_ENROLLMENT_START', '-6');
/**
* Date - Entrollment end
*/
define('CUSTOMCERT_DATE_ENROLLMENT_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_ENROLLMENT_START] = get_string('enrollmentstartdate', 'customcertelement_date');
$dateoptions[CUSTOMCERT_DATE_ENROLLMENT_END] = get_string('enrollmentenddate', '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_ENROLLMENT_START) {
// Get the enrollment 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_ENROLLMENT_END) {
// Get the enrollment 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';
}
}