public function process_grading() { // NEEDS REFACTOR/OPTIMISING, such as combining the various meta data stored against the sensei_user_answer entry if (isset($_POST['sensei_manual_grade']) && isset($_GET['quiz_id'])) { // error_log( __CLASS__ . ':' . __FUNCTION__ . ':' . print_r($_POST, true)); $quiz_id = $_GET['quiz_id']; $user_id = $_GET['user']; $verify_nonce = wp_verify_nonce($_POST['_wp_sensei_manual_grading_nonce'], 'sensei_manual_grading'); if ($verify_nonce && $quiz_id == $_POST['sensei_manual_grade']) { $questions = WooThemes_Sensei_Utils::sensei_get_quiz_questions($quiz_id); $quiz_grade = 0; $count = 0; $quiz_grade_total = $_POST['quiz_grade_total']; foreach ($questions as $question) { ++$count; $question_id = $question->ID; if (isset($_POST['question_' . $question_id])) { $correct = false; $question_grade = 0; $question_total_grade = $_POST['question_total_grade']; if ($_POST['question_' . $question_id] == 'right') { $correct = true; $question_grade = $_POST['question_' . $question_id . '_grade']; } $activity_logged = WooThemes_Sensei_Utils::sensei_grade_question($question_id, $question_grade, $user_id); $quiz_grade += $question_grade; } else { WooThemes_Sensei_Utils::sensei_delete_question_grade($question_id); } // WP slashes all incoming data regardless of Magic Quotes setting (see wp_magic_quotes()), but // as an answer note is not direct post_content it won't have slashes removed, so we need to do it $answer_notes = wp_unslash($_POST['question_' . $question_id . '_notes']); if (!$answer_notes || $answer_notes == '') { $answer_notes = ''; } WooThemes_Sensei_Utils::sensei_add_answer_notes($question_id, $user_id, $answer_notes); } if ($_POST['all_questions_graded'] == 'yes') { $grade = abs(round(doubleval($quiz_grade) * 100 / $quiz_grade_total, 2)); $activity_logged = WooThemes_Sensei_Utils::sensei_grade_quiz($quiz_id, $grade, $user_id); // Duplicating what Frontend->sensei_complete_quiz() does $quiz_lesson_id = absint(get_post_meta($quiz_id, '_quiz_lesson', true)); $pass_required = get_post_meta($quiz_id, '_pass_required', true); $quiz_passmark = abs(round(doubleval(get_post_meta($quiz_id, '_quiz_passmark', true)), 2)); $lesson_metadata = array(); if ($pass_required) { // Student has reached the pass mark and lesson is complete if ($quiz_passmark <= $grade) { $lesson_status = 'passed'; } else { $lesson_status = 'failed'; } // End If Statement } else { $lesson_status = 'graded'; } $lesson_metadata['grade'] = $grade; // Technically already set as part of "WooThemes_Sensei_Utils::sensei_grade_quiz()" above WooThemes_Sensei_Utils::update_lesson_status($user_id, $quiz_lesson_id, $lesson_status, $lesson_metadata); switch ($lesson_status) { case 'passed': case 'graded': do_action('sensei_user_lesson_end', $user_id, $quiz_lesson_id); break; } } if (isset($_POST['sensei_grade_next_learner']) && strlen($_POST['sensei_grade_next_learner']) > 0) { $load_url = add_query_arg(array('message' => 'graded')); } elseif (isset($_POST['_wp_http_referer'])) { $load_url = add_query_arg(array('message' => 'graded'), $_POST['_wp_http_referer']); } else { $load_url = add_query_arg(array('message' => 'graded')); } wp_safe_redirect($load_url); exit; } } }
/** * Grade quiz automatically * * This function grades each question automatically if there all questions are auto gradable. If not * the quiz will not be auto gradable. * * @since 1.7.4 * * @param integer $quiz_id ID of quiz * @param array $submitted questions id ans answers { * @type int $question_id * @type mixed $answer * } * @param integer $total_questions Total questions in quiz (not used) * @param string $quiz_grade_type Optional defaults to auto * * @return int $quiz_grade total sum of all question grades */ public static function grade_quiz_auto($quiz_id = 0, $submitted = array(), $total_questions = 0, $quiz_grade_type = 'auto') { if (!(intval($quiz_id) > 0) || !$submitted || $quiz_grade_type != 'auto') { return false; // exit early } global $woothemes_sensei; $user_id = get_current_user_id(); $lesson_id = $woothemes_sensei->quiz->get_lesson_id($quiz_id); $quiz_autogradable = true; /** * Filter the types of question types that can be automatically graded. * * This filter fires inside the auto grade quiz function and provides you with the default list. * * @param array { * 'multiple-choice', * 'boolean', * 'gap-fill'. * } */ $autogradable_question_types = apply_filters('sensei_autogradable_question_types', array('multiple-choice', 'boolean', 'gap-fill')); $grade_total = 0; $all_question_grades = array(); foreach ($submitted as $question_id => $answer) { // check if the question is autogradable, either by type, or because the grade is 0 $question_type = $woothemes_sensei->question->get_question_type($question_id); $achievable_grade = $woothemes_sensei->question->get_question_grade($question_id); // Question has a zero grade, so skip grading if (0 == $achievable_grade) { $all_question_grades[$question_id] = $achievable_grade; } elseif (in_array($question_type, $autogradable_question_types)) { // Get user question grade $question_grade = WooThemes_Sensei_Utils::sensei_grade_question_auto($question_id, $question_type, $answer, $user_id); $all_question_grades[$question_id] = $question_grade; $grade_total += $question_grade; } else { // There is a question that cannot be autograded $quiz_autogradable = false; } // end if in_array( $question_type... } // end for each question // Only if the whole quiz was autogradable do we set a grade if ($quiz_autogradable) { $quiz_total = WooThemes_Sensei_Utils::sensei_get_quiz_total($quiz_id); // Check for zero total from grades if (0 < $quiz_total) { $grade = abs(round(doubleval($grade_total) * 100 / $quiz_total, 2)); } else { $grade = 0; } WooThemes_Sensei_Utils::sensei_grade_quiz($quiz_id, $grade, $user_id, $quiz_grade_type); } else { $grade = new WP_Error('autograde', __('This quiz is not able to be automatically graded.', 'woothemes-sensei')); } // store the auto gradable grades. If the quiz is not auto gradable the grades can be use as the default // when doing manual grading. $woothemes_sensei->quiz->set_user_grades($all_question_grades, $lesson_id, $user_id); return $grade; }
/** * Grade quiz automatically * @param integer $quiz_id ID of quiz * @param integer $lesson_id ID of lesson * @param boolean $submitted Submitted answers * @param integer $total_questions Total questions in quiz (not used) * @return boolean Whether quiz was successfully graded or not */ public static function sensei_grade_quiz_auto($quiz_id = 0, $submitted = false, $total_questions = 0, $quiz_grade_type = 'auto') { if (intval($user_id) == 0) { $user_id = get_current_user_id(); } $grade = 0; $correct_answers = 0; $quiz_graded = false; $quiz_autogradable = true; if (intval($quiz_id) > 0 && $submitted) { if ($quiz_grade_type == 'auto') { // Can only autograde these question types $autogradable_question_types = apply_filters('sensei_autogradable_question_types', array('multiple-choice', 'boolean', 'gap-fill')); $grade_total = 0; foreach ($submitted as $question_id => $answer) { // check if the question is autogradable $question_type = get_the_terms($question_id, 'question-type'); // Set default question type if one does not exist - prevents errors when grading if (!$question_type || is_wp_error($question_type) || !is_array($question_type)) { $question_type = 'multiple-choice'; } else { $question_type = array_shift($question_type)->slug; } if (in_array($question_type, $autogradable_question_types)) { // Get user question grade $question_grade = WooThemes_Sensei_Utils::sensei_grade_question_auto($question_id, $question_type, $answer, $user_id); $grade_total += $question_grade; } else { // There is a question that cannot be autograded $quiz_autogradable = false; } } // Only if the whole quiz was autogradable do we set a grade if ($quiz_autogradable) { $quiz_total = WooThemes_Sensei_Utils::sensei_get_quiz_total($quiz_id); $grade = abs(round(doubleval($grade_total) * 100 / $quiz_total, 2)); $activity_logged = WooThemes_Sensei_Utils::sensei_grade_quiz($quiz_id, $grade, $user_id, $quiz_grade_type); } else { $grade = new WP_Error('autograde', __('This quiz is not able to be automatically graded.', 'woothemes-sensei')); } } } return $grade; }