PHP WooThemes_Sensei_Utils::sensei_grade_quiz方法代码示例

 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;
 }