PHP WooThemes_Sensei_Utils::sensei_delete_quiz_answers方法代码示例

 /**
  * Remove user from lesson, deleting all data from the corresponding quiz
  *
  * @param type $lesson_id
  * @param type $user_id
  * @return boolean
  */
 public static function sensei_remove_user_from_lesson($lesson_id = 0, $user_id = 0, $from_course = false)
 {
     global $woothemes_sensei;
     if (!$lesson_id) {
         return false;
     }
     if (intval($user_id) == 0) {
         $user_id = get_current_user_id();
     }
     // Process quiz
     $lesson_quiz_id = $woothemes_sensei->post_types->lesson->lesson_quizzes($lesson_id);
     // Delete quiz answers, this auto deletes the corresponding meta data, such as the question/answer grade
     WooThemes_Sensei_Utils::sensei_delete_quiz_answers($lesson_quiz_id, $user_id);
     // Delete lesson status
     $args = array('post_id' => $lesson_id, 'type' => 'sensei_lesson_status', 'user_id' => $user_id);
     // This auto deletes the corresponding meta data, such as the quiz grade, and questions asked
     WooThemes_Sensei_Utils::sensei_delete_activities($args);
     if (!$from_course) {
         do_action('sensei_user_lesson_reset', $user_id, $lesson_id);
     }
     return true;
 }

    public function sensei_complete_quiz()
    {
        global $post, $woothemes_sensei, $current_user;
        // Default grade
        $grade = 0;
        // Get Quiz Questions
        $lesson_quiz_questions = $woothemes_sensei->post_types->lesson->lesson_quiz_questions($post->ID);
        $quiz_lesson_id = absint(get_post_meta($post->ID, '_quiz_lesson', true));
        // Get quiz grade type
        $quiz_grade_type = get_post_meta($post->ID, '_quiz_grade_type', true);
        // Get quiz pass setting
        $pass_required = get_post_meta($post->ID, '_pass_required', true);
        // Get quiz pass mark
        $quiz_passmark = abs(round(doubleval(get_post_meta($post->ID, '_quiz_passmark', true)), 2));
        // Handle Quiz Completion
        if (isset($_POST['quiz_complete']) && wp_verify_nonce($_POST['woothemes_sensei_complete_quiz_noonce'], 'woothemes_sensei_complete_quiz_noonce')) {
            $sanitized_submit = esc_html($_POST['quiz_complete']);
            $questions_asked = array_filter(array_map('absint', $_POST['questions_asked']));
            $questions_asked_string = implode(',', $questions_asked);
            switch ($sanitized_submit) {
                case apply_filters('sensei_complete_quiz_text', __('Complete Quiz', 'woothemes-sensei')):
                    // Mark the Lesson as in-progress (if it isn't already), the entry is needed for WooThemes_Sensei_Utils::sensei_grade_quiz_auto() (optimise at some point?)
                    $activity_logged = WooThemes_Sensei_Utils::sensei_start_lesson($quiz_lesson_id);
                    $lesson_status = 'ungraded';
                    // Default when completing a quiz
                    // Save questions that were asked in this quiz
                    if (!empty($questions_asked_string)) {
                        update_comment_meta($activity_logged, 'questions_asked', $questions_asked_string);
                    }
                    // Save Quiz Answers
                    if (isset($_POST['sensei_question'])) {
                        WooThemes_Sensei_Utils::sensei_save_quiz_answers($_POST['sensei_question']);
                    }
                    // Grade quiz
                    // 3rd arg is count of total number of questions but it's not used by sensei_grade_quiz_auto()
                    $grade = WooThemes_Sensei_Utils::sensei_grade_quiz_auto($post->ID, $_POST['sensei_question'], count($lesson_quiz_questions), $quiz_grade_type);
                    $lesson_metadata = array();
                    // Get Lesson Grading Setting
                    if (is_wp_error($grade) || 'auto' != $quiz_grade_type) {
                        $lesson_status = 'ungraded';
                        // Quiz is manually graded and this was a user submission
                    } else {
                        // Quiz has been automatically Graded
                        if ($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'] = $grade;
                        // Technically already set as part of "WooThemes_Sensei_Utils::sensei_grade_quiz_auto()" above
                    }
                    WooThemes_Sensei_Utils::update_lesson_status($current_user->ID, $quiz_lesson_id, $lesson_status, $lesson_metadata);
                    switch ($lesson_status) {
                        case 'passed':
                        case 'graded':
                            do_action('sensei_user_lesson_end', $current_user->ID, $quiz_lesson_id);
                            break;
                    }
                    do_action('sensei_user_quiz_submitted', $current_user->ID, $post->ID, $grade, $quiz_passmark, $quiz_grade_type);
                    break;
                case apply_filters('sensei_save_quiz_text', __('Save Quiz', 'woothemes-sensei')):
                    $activity_logged = WooThemes_Sensei_Utils::sensei_start_lesson($quiz_lesson_id);
                    if ($activity_logged) {
                        // Save questions that were asked in this quiz
                        if (!empty($questions_asked_string)) {
                            update_comment_meta($activity_logged, 'questions_asked', $questions_asked_string);
                        }
                        if (isset($_POST['sensei_question'])) {
                            WooThemes_Sensei_Utils::sensei_save_quiz_answers($_POST['sensei_question']);
                        }
                    }
                    // Need message in case the data wasn't saved?
                    $this->messages = '<div class="sensei-message note">' . apply_filters('sensei_quiz_saved_text', __('Quiz Saved Successfully.', 'woothemes-sensei')) . '</div>';
                    break;
                case apply_filters('sensei_reset_quiz_text', __('Reset Quiz', 'woothemes-sensei')):
                    // Don't want to remove the lesson status (such as start meta data etc), just remove the answers, the questions asked meta and any grade meta
                    // Delete quiz answers, this auto deletes the corresponding meta data, such as the question/answer grade
                    WooThemes_Sensei_Utils::sensei_delete_quiz_answers($post->ID, $user_id);
                    WooThemes_Sensei_Utils::update_lesson_status($current_user->ID, $quiz_lesson_id, 'in-progress', array('questions_asked' => '', 'grade' => ''));
                    // Run any action on quiz/lesson reset (previously this didn't occur on resetting a quiz, see resetting a lesson in sensei_complete_lesson()
                    do_action('sensei_user_lesson_reset', $current_user->ID, $quiz_lesson_id);
                    $this->messages = '<div class="sensei-message note">' . apply_filters('sensei_quiz_reset_text', __('Quiz Reset Successfully.', 'woothemes-sensei')) . '</div>';
                    break;
                default:
                    // Nothing
                    break;
            }
            // End Switch Statement
            // Refresh page to avoid re-posting
            ?>
			<script type="text/javascript"> window.location = '<?php 
            echo get_permalink($post->ID);
            ?>
'; </script>
//.........这里部分代码省略.........

 /**
  * Reset user submitted questions
  *
  * This function resets the quiz data for a user that has been submitted fro grading already. It is different to
  * the save_user_answers as currently the saved and submitted answers are stored differently.
  *
  * @since 1.7.4
  * @access public
  *
  * @return bool $reset_success
  * @param int $user_id
  * @param int $lesson_id
  */
 public function reset_user_lesson_data($lesson_id, $user_id = 0)
 {
     //make sure the parameters are valid
     if (empty($lesson_id) || empty($user_id) || 'lesson' != get_post_type($lesson_id) || !get_userdata($user_id)) {
         return false;
     }
     global $woothemes_sensei;
     //get the users lesson status to make
     $user_lesson_status = WooThemes_Sensei_Utils::user_lesson_status($lesson_id, $user_id);
     if (!isset($user_lesson_status->comment_ID)) {
         // this user is not taking this lesson so this process is not needed
         return false;
     }
     //get the lesson quiz and course
     $quiz_id = $woothemes_sensei->lesson->lesson_quizzes($lesson_id);
     $course_id = $woothemes_sensei->lesson->get_course_id($lesson_id);
     // reset the transients
     $answers_transient_key = 'sensei_answers_' . $user_id . '_' . $lesson_id;
     $grades_transient_key = 'quiz_grades_' . $user_id . '_' . $lesson_id;
     $answers_feedback_transient_key = 'sensei_answers_feedback_' . $user_id . '_' . $lesson_id;
     delete_transient($answers_transient_key);
     delete_transient($grades_transient_key);
     delete_transient($answers_feedback_transient_key);
     // reset the quiz answers and feedback notes
     $deleted_answers = WooThemes_Sensei_Utils::delete_user_data('quiz_answers', $lesson_id, $user_id);
     $deleted_grades = WooThemes_Sensei_Utils::delete_user_data('quiz_grades', $lesson_id, $user_id);
     $deleted_user_feedback = WooThemes_Sensei_Utils::delete_user_data('quiz_answers_feedback', $lesson_id, $user_id);
     // Delete quiz answers, this auto deletes the corresponding meta data, such as the question/answer grade
     WooThemes_Sensei_Utils::sensei_delete_quiz_answers($quiz_id, $user_id);
     WooThemes_Sensei_Utils::update_lesson_status($user_id, $lesson_id, 'in-progress', array('questions_asked' => '', 'grade' => ''));
     // Update course completion
     WooThemes_Sensei_Utils::update_course_status($user_id, $course_id);
     // Run any action on quiz/lesson reset (previously this didn't occur on resetting a quiz, see resetting a lesson in sensei_complete_lesson()
     do_action('sensei_user_lesson_reset', $user_id, $lesson_id);
     $woothemes_sensei->frontend->messages = '<div class="sensei-message note">' . apply_filters('sensei_quiz_reset_text', __('Quiz Reset Successfully.', 'woothemes-sensei')) . '</div>';
     return $deleted_answers && $deleted_grades;
 }