/** * Perform minimal validation on the grade form * @param array $data * @param array $files */ public function validation($data, $files) { global $DB; $errors = parent::validation($data, $files); $instance = $this->setaskment->get_instance(); if ($instance->markingworkflow && !empty($data['sendstudentnotifications']) && $data['workflowstate'] != ASSIGN_MARKING_WORKFLOW_STATE_RELEASED) { $errors['sendstudentnotifications'] = get_string('studentnotificationworkflowstateerror', 'setask'); } // Advanced grading. if (!array_key_exists('grade', $data)) { return $errors; } if ($instance->grade > 0) { if (!unformat_float($data['grade'], true) && !empty($data['grade'])) { $errors['grade'] = get_string('invalidfloatforgrade', 'setask', $data['grade']); } else { if (unformat_float($data['grade']) > $instance->grade) { $errors['grade'] = get_string('gradeabovemaximum', 'setask', $instance->grade); } else { if (unformat_float($data['grade']) < 0) { $errors['grade'] = get_string('gradebelowzero', 'setask'); } } } } else { // This is a scale. if ($scale = $DB->get_record('scale', array('id' => -$instance->grade))) { $scaleoptions = make_menu_from_list($scale->scale); if ((int) $data['grade'] !== -1 && !array_key_exists((int) $data['grade'], $scaleoptions)) { $errors['grade'] = get_string('invalidgradeforscale', 'setask'); } } } return $errors; }