219 lines
7.7 KiB
PHP
219 lines
7.7 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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/**
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* This file contains the customcert element grade's core interaction API.
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*
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* @package customcertelement_grade
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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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namespace customcertelement_grade;
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defined('MOODLE_INTERNAL') || die();
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/**
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* Grade - Course
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*/
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define('CUSTOMCERT_GRADE_COURSE', '0');
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/**
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* The customcert element grade's core interaction API.
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*
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* @package customcertelement_grade
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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 element extends \mod_customcert\element {
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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 \MoodleQuickForm $mform the edit_form instance
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*/
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public function render_form_elements($mform) {
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global $COURSE;
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// Get the grade items we can display.
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$gradeitems = array();
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$gradeitems[CUSTOMCERT_GRADE_COURSE] = get_string('coursegrade', 'customcertelement_grade');
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$gradeitems = $gradeitems + \mod_customcert\element_helper::get_grade_items($COURSE);
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// The grade items.
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$mform->addElement('select', 'gradeitem', get_string('gradeitem', 'customcertelement_grade'), $gradeitems);
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$mform->addHelpButton('gradeitem', 'gradeitem', 'customcertelement_grade');
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// The grade format.
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$mform->addElement('select', 'gradeformat', get_string('gradeformat', 'customcertelement_grade'),
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self::get_grade_format_options());
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$mform->setType('gradeformat', PARAM_INT);
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$mform->addHelpButton('gradeformat', 'gradeformat', 'customcertelement_grade');
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parent::render_form_elements($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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'gradeitem' => $data->gradeitem,
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'gradeformat' => $data->gradeformat
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);
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// Encode these variables before saving into the DB.
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return json_encode($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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* @param \stdClass $user the user we are rendering this for
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*/
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public function render($pdf, $preview, $user) {
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// If there is no element data, we have nothing to display.
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if (empty($this->get_data())) {
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return;
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}
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$courseid = \mod_customcert\element_helper::get_courseid($this->id);
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// Decode the information stored in the database.
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$gradeinfo = json_decode($this->get_data());
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$gradeitem = $gradeinfo->gradeitem;
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$gradeformat = $gradeinfo->gradeformat;
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// If we are previewing this certificate then just show a demonstration grade.
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if ($preview) {
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$courseitem = \grade_item::fetch_course_item($courseid);
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$grade = grade_format_gradevalue('100', $courseitem, true, $gradeinfo->gradeformat);;
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} else {
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if ($gradeitem == CUSTOMCERT_GRADE_COURSE) {
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$grade = \mod_customcert\element_helper::get_course_grade_info(
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$courseid,
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$gradeformat,
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$user->id
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);
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} else if (strpos($gradeitem, 'gradeitem:') === 0) {
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$gradeitemid = substr($gradeitem, 10);
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$grade = \mod_customcert\element_helper::get_grade_item_info(
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$gradeitemid,
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$gradeformat,
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$user->id
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);
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} else {
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$grade = \mod_customcert\element_helper::get_mod_grade_info(
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$gradeitem,
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$gradeformat,
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$user->id
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);
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}
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if ($grade) {
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$grade = $grade->get_displaygrade();
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}
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}
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\mod_customcert\element_helper::render_content($pdf, $this, $grade);
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}
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/**
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* Render the element in html.
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*
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* This function is used to render the element when we are using the
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* drag and drop interface to position it.
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*
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* @return string the html
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*/
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public function render_html() {
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global $COURSE;
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// If there is no element data, we have nothing to display.
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if (empty($this->get_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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$gradeinfo = json_decode($this->get_data());
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$courseitem = \grade_item::fetch_course_item($COURSE->id);
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$grade = grade_format_gradevalue('100', $courseitem, true, $gradeinfo->gradeformat);
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return \mod_customcert\element_helper::render_html_content($this, $grade);
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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 \MoodleQuickForm $mform the edit_form instance
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*/
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public function definition_after_data($mform) {
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// Set the item and format for this element.
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if (!empty($this->get_data())) {
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$gradeinfo = json_decode($this->get_data());
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$element = $mform->getElement('gradeitem');
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$element->setValue($gradeinfo->gradeitem);
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$element = $mform->getElement('gradeformat');
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$element->setValue($gradeinfo->gradeformat);
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}
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parent::definition_after_data($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 grade 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 $DB;
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$gradeinfo = json_decode($this->get_data());
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if ($newitem = \restore_dbops::get_backup_ids_record($restore->get_restoreid(), 'course_module', $gradeinfo->gradeitem)) {
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$gradeinfo->gradeitem = $newitem->newitemid;
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$DB->set_field('customcert_elements', 'data', $this->save_unique_data($gradeinfo), array('id' => $this->get_id()));
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}
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}
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/**
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* Helper function to return all the possible grade formats.
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*
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* @return array returns an array of grade formats
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*/
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public static function get_grade_format_options() {
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$gradeformat = array();
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$gradeformat[GRADE_DISPLAY_TYPE_REAL] = get_string('gradepoints', 'customcertelement_grade');
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$gradeformat[GRADE_DISPLAY_TYPE_PERCENTAGE] = get_string('gradepercent', 'customcertelement_grade');
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$gradeformat[GRADE_DISPLAY_TYPE_LETTER] = get_string('gradeletter', 'customcertelement_grade');
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return $gradeformat;
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}
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}
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