2 // This file is part of Moodle - http://moodle.org/
4 // Moodle is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
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10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
18 * Course completion critieria - completion on achieving course grade
20 * @package core_completion
21 * @category completion
22 * @copyright 2009 Catalyst IT Ltd
23 * @author Aaron Barnes <aaronb@catalyst.net.nz>
24 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
27 defined('MOODLE_INTERNAL') || die();
28 require_once $CFG->dirroot.'/grade/lib.php';
29 require_once $CFG->dirroot.'/grade/querylib.php';
32 * Course completion critieria - completion on achieving course grade
34 * @package core_completion
35 * @category completion
36 * @copyright 2009 Catalyst IT Ltd
37 * @author Aaron Barnes <aaronb@catalyst.net.nz>
38 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
40 class completion_criteria_grade extends completion_criteria {
42 /* @var int Criteria type constant [COMPLETION_CRITERIA_TYPE_GRADE] */
43 public $criteriatype = COMPLETION_CRITERIA_TYPE_GRADE;
46 * Finds and returns a data_object instance based on params.
48 * @param array $params associative array varname => value of various
49 * parameters used to fetch data_object
50 * @return data_object data_object instance or false if none found.
52 public static function fetch($params) {
53 $params['criteriatype'] = COMPLETION_CRITERIA_TYPE_GRADE;
54 return self::fetch_helper('course_completion_criteria', __CLASS__, $params);
58 * Add appropriate form elements to the critieria form
60 * @param moodle_form $mform Moodle forms object
61 * @param stdClass $data containing default values to be set in the form
63 public function config_form_display(&$mform, $data = null) {
64 $mform->addElement('checkbox', 'criteria_grade', get_string('enable'));
65 $mform->addElement('text', 'criteria_grade_value', get_string('graderequired', 'completion'));
66 $mform->disabledIf('criteria_grade_value', 'criteria_grade');
67 $mform->setType('criteria_grade_value', PARAM_RAW); // Uses unformat_float.
68 $mform->setDefault('criteria_grade_value', format_float($data));
71 $mform->setDefault('criteria_grade', 1);
72 $mform->setDefault('criteria_grade_value', format_float($this->gradepass));
77 * Update the criteria information stored in the database
79 * @param stdClass $data Form data
81 public function update_config(&$data) {
83 if (!empty($data->criteria_grade)) {
84 $formatedgrade = unformat_float($data->criteria_grade_value);
86 if (!empty($formatedgrade) && is_numeric($formatedgrade)) {
87 $this->course = $data->id;
88 $this->gradepass = $formatedgrade;
95 * Get user's course grade in this course
97 * @param completion_completion $completion an instance of completion_completion class
100 private function get_grade($completion) {
101 $grade = grade_get_course_grade($completion->userid, $this->course);
102 return $grade->grade;
106 * Review this criteria and decide if the user has completed
108 * @param completion_completion $completion The user's completion record
109 * @param bool $mark Optionally set false to not save changes to database
112 public function review($completion, $mark = true) {
113 // Get user's course grade
114 $grade = $this->get_grade($completion);
116 // If user's current course grade is higher than the required pass grade
117 if ($this->gradepass && $this->gradepass <= $grade) {
119 $completion->gradefinal = $grade;
120 $completion->mark_complete();
130 * Return criteria title for display in reports
134 public function get_title() {
135 return get_string('coursegrade', 'completion');
139 * Return a more detailed criteria title for display in reports
143 public function get_title_detailed() {
144 $graderequired = round($this->gradepass, 2).'%';
145 return get_string('gradexrequired', 'completion', $graderequired);
149 * Return criteria type title for display in reports
153 public function get_type_title() {
154 return get_string('grade');
158 * Return criteria status text for display in reports
160 * @param completion_completion $completion The user's completion record
163 public function get_status($completion) {
164 $grade = $this->get_grade($completion);
165 $graderequired = $this->get_title_detailed();
168 $grade = round($grade, 2).'%';
170 $grade = get_string('nograde');
173 return $grade.' ('.$graderequired.')';
177 * Find user's who have completed this criteria
179 public function cron() {
182 // Get all users who meet this criteria
188 gg.finalgrade AS gradefinal,
189 gg.timemodified AS timecompleted
191 {course_completion_criteria} cr
197 ON con.instanceid = c.id
199 {role_assignments} ra
200 ON ra.contextid = con.id
203 ON gi.courseid = c.id
204 AND gi.itemtype = \'course\'
208 AND gg.userid = ra.userid
210 {course_completion_crit_compl} cc
211 ON cc.criteriaid = cr.id
212 AND cc.userid = ra.userid
214 cr.criteriatype = '.COMPLETION_CRITERIA_TYPE_GRADE.'
215 AND con.contextlevel = '.CONTEXT_COURSE.'
216 AND c.enablecompletion = 1
218 AND gg.finalgrade >= cr.gradepass
221 // Loop through completions, and mark as complete
222 $rs = $DB->get_recordset_sql($sql);
223 foreach ($rs as $record) {
224 $completion = new completion_criteria_completion((array) $record, DATA_OBJECT_FETCH_BY_KEY);
225 $completion->mark_complete($record->timecompleted);
231 * Return criteria progress details for display in reports
233 * @param completion_completion $completion The user's completion record
234 * @return array An array with the following keys:
235 * type, criteria, requirement, status
237 public function get_details($completion) {
239 $details['type'] = get_string('coursegrade', 'completion');
240 $details['criteria'] = get_string('graderequired', 'completion');
241 $details['requirement'] = round($this->gradepass, 2).'%';
242 $details['status'] = '';
244 $grade = round($this->get_grade($completion), 2);
246 $details['status'] = $grade.'%';