224 lines
8.4 KiB
PHP
224 lines
8.4 KiB
PHP
<?php
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// This file is part of the customcert module for Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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defined('MOODLE_INTERNAL') || die('Direct access to this script is forbidden.');
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require_once($CFG->dirroot . '/mod/customcert/element/element.class.php');
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require_once($CFG->dirroot . '/mod/customcert/element/grade/lib.php');
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/**
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* Date - Issue
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*/
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define('CUSTOMCERT_DATE_ISSUE', '1');
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/**
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* Date - Completion
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*/
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define('CUSTOMCERT_DATE_COMPLETION', '2');
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/**
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* The customcert element date's core interaction API.
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*
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* @package customcertelement_date
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* @copyright 2013 Mark Nelson <markn@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class customcert_element_date extends customcert_element_base {
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/**
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* This function renders the form elements when adding a customcert element.
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*
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* @param mod_customcert_edit_element_form $mform the edit_form instance
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*/
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public function render_form_elements($mform) {
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// Get the possible date options.
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$dateoptions = array();
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$dateoptions[CUSTOMCERT_DATE_ISSUE] = get_string('issueddate', 'customcertelement_date');
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$dateoptions[CUSTOMCERT_DATE_COMPLETION] = get_string('completiondate', 'customcertelement_date');
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$dateoptions = $dateoptions + customcert_element_grade::get_grade_items();
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$mform->addElement('select', 'dateitem', get_string('dateitem', 'customcertelement_date'), $dateoptions);
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$mform->addHelpButton('dateitem', 'dateitem', 'customcertelement_date');
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$mform->addElement('select', 'dateformat', get_string('dateformat', 'customcertelement_date'), self::get_date_formats());
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$mform->addHelpButton('dateformat', 'dateformat', 'customcertelement_date');
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parent::render_form_elements($mform);
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}
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/**
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* This will handle how form data will be saved into the data column in the
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* customcert_elements table.
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*
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* @param stdClass $data the form data
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* @return string the json encoded array
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*/
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public function save_unique_data($data) {
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// Array of data we will be storing in the database.
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$arrtostore = array(
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'dateitem' => $data->dateitem,
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'dateformat' => $data->dateformat
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);
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// Encode these variables before saving into the DB.
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return json_encode($arrtostore);
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}
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/**
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* Handles rendering the element on the pdf.
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*
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* @param pdf $pdf the pdf object
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* @param bool $preview true if it is a preview, false otherwise
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*/
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public function render($pdf, $preview) {
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global $COURSE, $DB, $USER;
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// If there is no element data, we have nothing to display.
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if (empty($this->element->data)) {
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return;
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}
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// Decode the information stored in the database.
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$dateinfo = json_decode($this->element->data);
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$dateitem = $dateinfo->dateitem;
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$dateformat = $dateinfo->dateformat;
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// If we are previewing this certificate then just show a demonstration date.
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if ($preview) {
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$date = time();
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} else {
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// Get the page.
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$page = $DB->get_record('customcert_pages', array('id' => $this->element->pageid), '*', MUST_EXIST);
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// Now we can get the issue for this user.
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$issue = $DB->get_record('customcert_issues', array('userid' => $USER->id, 'customcertid' => $page->customcertid), '*', MUST_EXIST);
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if ($dateitem == CUSTOMCERT_DATE_ISSUE) {
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$date = $issue->timecreated;
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} else if ($dateitem == CUSTOMCERT_DATE_COMPLETION) {
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// Get the enrolment end date.
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$sql = "SELECT MAX(c.timecompleted) as timecompleted
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FROM {course_completions} c
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WHERE c.userid = :userid
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AND c.course = :courseid";
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if ($timecompleted = $DB->get_record_sql($sql, array('userid' => $issue->userid, 'courseid' => $COURSE->id))) {
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if (!empty($timecompleted->timecompleted)) {
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$date = $timecompleted->timecompleted;
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}
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}
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} else {
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$gradeitem = new stdClass();
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$gradeitem->gradeitem = $dateitem;
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$gradeitem->gradeformat = GRADE_DISPLAY_TYPE_PERCENTAGE;
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if ($modinfo = customcert_element_grade::get_grade($gradeitem, $issue->userid)) {
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$date = $modinfo->dategraded;
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}
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}
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}
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// Ensure that a date has been set.
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if (!empty($date)) {
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switch ($dateformat) {
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case 1:
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$certificatedate = userdate($date, '%B %d, %Y');
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break;
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case 2:
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$suffix = $this->get_ordinal_number_suffix(userdate($date, '%d'));
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$certificatedate = userdate($date, '%B %d' . $suffix . ', %Y');
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break;
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case 3:
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$certificatedate = userdate($date, '%d %B %Y');
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break;
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case 4:
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$certificatedate = userdate($date, '%B %Y');
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break;
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default:
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$certificatedate = userdate($date, get_string('strftimedate', 'langconfig'));
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}
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parent::render_content($pdf, $certificatedate);
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}
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}
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/**
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* Sets the data on the form when editing an element.
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*
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* @param mod_customcert_edit_element_form $mform the edit_form instance
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*/
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public function definition_after_data($mform) {
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// Set the item and format for this element.
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$dateinfo = json_decode($this->element->data);
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$this->element->dateitem = $dateinfo->dateitem;
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$this->element->dateformat = $dateinfo->dateformat;
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parent::definition_after_data($mform);
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}
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/**
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* This function is responsible for handling the restoration process of the element.
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*
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* We will want to update the course module the date element is pointing to as it will
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* have changed in the course restore.
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*
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* @param restore_customcert_activity_task $restore
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*/
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public function after_restore($restore) {
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global $DB;
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$dateinfo = json_decode($this->element->data);
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if ($newitem = restore_dbops::get_backup_ids_record($restore->get_restoreid(), 'course_module', $dateinfo->dateitem)) {
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$dateinfo->dateitem = $newitem->newitemid;
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$DB->set_field('customcert_elements', 'data', self::save_unique_data($dateinfo), array('id' => $this->element->id));
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}
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}
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/**
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* Helper function to return all the date formats.
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*
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* @return array the list of date formats
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*/
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public static function get_date_formats() {
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$dateformats = array();
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$dateformats[1] = 'January 1, 2000';
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$dateformats[2] = 'January 1st, 2000';
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$dateformats[3] = '1 January 2000';
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$dateformats[4] = 'January 2000';
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$dateformats[5] = get_string('userdateformat', 'customcertelement_date');
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return $dateformats;
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}
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/**
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* Helper function to return the suffix of the day of
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* the month, eg 'st' if it is the 1st of the month.
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*
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* @param int $day the day of the month
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* @return string the suffix.
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*/
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private function get_ordinal_number_suffix($day) {
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if (!in_array(($day % 100), array(11, 12, 13))) {
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switch ($day % 10) {
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// Handle 1st, 2nd, 3rd.
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case 1:
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return get_string('numbersuffix_st', 'customcertelement_date');
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case 2:
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return get_string('numbersuffix_nd', 'customcertelement_date');
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case 3:
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return get_string('numbersuffix_rd', 'customcertelement_date');
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}
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}
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return 'th';
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}
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}
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