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. /** * Course completion critieria - completion on achieving course grade * * @package core_completion * @category completion * @copyright 2009 Catalyst IT Ltd * @author Aaron Barnes
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ defined('MOODLE_INTERNAL') || die(); require_once $CFG->dirroot.'/grade/lib.php'; require_once $CFG->dirroot.'/grade/querylib.php'; /** * Course completion critieria - completion on achieving course grade * * @package core_completion * @category completion * @copyright 2009 Catalyst IT Ltd * @author Aaron Barnes
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class completion_criteria_grade extends completion_criteria { /* @var int Criteria type constant [COMPLETION_CRITERIA_TYPE_GRADE] */ public $criteriatype = COMPLETION_CRITERIA_TYPE_GRADE; /** * Finds and returns a data_object instance based on params. * * @param array $params associative array varname => value of various * parameters used to fetch data_object * @return data_object data_object instance or false if none found. */ public static function fetch($params) { $params['criteriatype'] = COMPLETION_CRITERIA_TYPE_GRADE; return self::fetch_helper('course_completion_criteria', __CLASS__, $params); } /** * Add appropriate form elements to the critieria form * * @param moodle_form $mform Moodle forms object * @param stdClass $data containing default values to be set in the form */ public function config_form_display(&$mform, $data = null) { $mform->addElement('checkbox', 'criteria_grade', get_string('enable')); $mform->addElement('text', 'criteria_grade_value', get_string('graderequired', 'completion')); $mform->disabledIf('criteria_grade_value', 'criteria_grade'); $mform->setType('criteria_grade_value', PARAM_RAW); // Uses unformat_float. // Grades are stored in Moodle with 5 decimal points, make sure we do not accidentally round them // when setting the form value. $mform->setDefault('criteria_grade_value', format_float($data, 5)); if ($this->id) { $mform->setDefault('criteria_grade', 1); $mform->setDefault('criteria_grade_value', format_float($this->gradepass, 5)); } } /** * Update the criteria information stored in the database * * @param stdClass $data Form data */ public function update_config(&$data) { if (!empty($data->criteria_grade)) { $formatedgrade = unformat_float($data->criteria_grade_value); // TODO validation if (!empty($formatedgrade) && is_numeric($formatedgrade)) { $this->course = $data->id; $this->gradepass = $formatedgrade; $this->insert(); } } } /** * Get user's course grade in this course * * @param completion_completion $completion an instance of completion_completion class * @return float */ private function get_grade($completion) { $grade = grade_get_course_grade($completion->userid, $this->course); return $grade->grade; } /** * Review this criteria and decide if the user has completed * * @param completion_completion $completion The user's completion record * @param bool $mark Optionally set false to not save changes to database * @return bool */ public function review($completion, $mark = true) { // Get user's course grade $grade = $this->get_grade($completion); // If user's current course grade is higher than the required pass grade if ($this->gradepass && $this->gradepass <= $grade) { if ($mark) { $completion->gradefinal = $grade; $completion->mark_complete(); } return true; } return false; } /** * Return criteria title for display in reports * * @return string */ public function get_title() { return get_string('coursegrade', 'completion'); } /** * Return a more detailed criteria title for display in reports * * @return string */ public function get_title_detailed() { global $CFG; require_once($CFG->libdir . '/gradelib.php'); $decimalpoints = grade_get_setting($this->course, 'decimalpoints', $CFG->grade_decimalpoints); $graderequired = format_float($this->gradepass, $decimalpoints); return get_string('gradexrequired', 'completion', $graderequired); } /** * Return criteria type title for display in reports * * @return string */ public function get_type_title() { return get_string('grade'); } /** * Return criteria status text for display in reports * * @param completion_completion $completion The user's completion record * @return string */ public function get_status($completion) { global $CFG; require_once($CFG->libdir . '/gradelib.php'); $decimalpoints = grade_get_setting($this->course, 'decimalpoints', $CFG->grade_decimalpoints); $grade = $this->get_grade($completion); $graderequired = $this->get_title_detailed(); if ($grade) { $grade = format_float($grade, $decimalpoints); } else { $grade = get_string('nograde'); } return $grade.' ('.$graderequired.')'; } /** * Find user's who have completed this criteria */ public function cron() { global $DB; // Get all users who meet this criteria $sql = ' SELECT DISTINCT c.id AS course, cr.id AS criteriaid, ra.userid AS userid, gg.finalgrade AS gradefinal, gg.timemodified AS timecompleted FROM {course_completion_criteria} cr INNER JOIN {course} c ON cr.course = c.id INNER JOIN {context} con ON con.instanceid = c.id INNER JOIN {role_assignments} ra ON ra.contextid = con.id INNER JOIN {grade_items} gi ON gi.courseid = c.id AND gi.itemtype = \'course\' INNER JOIN {grade_grades} gg ON gg.itemid = gi.id AND gg.userid = ra.userid LEFT JOIN {course_completion_crit_compl} cc ON cc.criteriaid = cr.id AND cc.userid = ra.userid WHERE cr.criteriatype = '.COMPLETION_CRITERIA_TYPE_GRADE.' AND con.contextlevel = '.CONTEXT_COURSE.' AND c.enablecompletion = 1 AND cc.id IS NULL AND gg.finalgrade >= cr.gradepass '; // Loop through completions, and mark as complete $rs = $DB->get_recordset_sql($sql); foreach ($rs as $record) { $completion = new completion_criteria_completion((array) $record, DATA_OBJECT_FETCH_BY_KEY); $completion->mark_complete($record->timecompleted); } $rs->close(); } /** * Return criteria progress details for display in reports * * @param completion_completion $completion The user's completion record * @return array An array with the following keys: * type, criteria, requirement, status */ public function get_details($completion) { global $CFG; require_once($CFG->libdir . '/gradelib.php'); $decimalpoints = grade_get_setting($this->course, 'decimalpoints', $CFG->grade_decimalpoints); $details = array(); $details['type'] = get_string('coursegrade', 'completion'); $details['criteria'] = get_string('graderequired', 'completion'); $details['requirement'] = format_float($this->gradepass, $decimalpoints); $details['status'] = ''; $grade = format_float($this->get_grade($completion), $decimalpoints); if ($grade) { $details['status'] = $grade; } return $details; } /** * Return pix_icon for display in reports. * * @param string $alt The alt text to use for the icon * @param array $attributes html attributes * @return pix_icon */ public function get_icon($alt, array $attributes = null) { return new pix_icon('i/grades', $alt, 'moodle', $attributes); } }