/**
* Update question answers to use new data structure
*
* @since 1.3.0
* @access public
* @return void
*/
public function update_question_answer_data($n = 50, $offset = 0)
{
// Get Total Number of Updates to run
$quiz_count_object = wp_count_posts('quiz');
$quiz_count_published = $quiz_count_object->publish;
// Calculate if this is the last page
if (0 == $offset) {
$current_page = 1;
} else {
$current_page = intval($offset / $n);
}
// End If Statement
$total_pages = intval($quiz_count_published / $n);
$args = array('post_type' => 'quiz', 'numberposts' => $n, 'offset' => $offset, 'post_status' => 'publish', 'suppress_filters' => 0);
$quizzes = get_posts($args);
$old_answers = array();
$right_answers = array();
$old_user_answers = array();
if (is_array($quizzes)) {
foreach ($quizzes as $quiz) {
$quiz_id = $quiz->ID;
// Get current user answers
$comments = WooThemes_Sensei_Utils::sensei_check_for_activity(array('post_id' => $quiz_id, 'type' => 'sensei_quiz_answers'), true);
// Need to always return an array, even with only 1 item
if (!is_array($comments)) {
$comments = array($comments);
}
foreach ($comments as $comment) {
$user_id = $comment->user_id;
$content = maybe_unserialize(base64_decode($comment->comment_content));
$old_user_answers[$quiz_id][$user_id] = $content;
}
// Get correct answers
$questions = WooThemes_Sensei_Utils::sensei_get_quiz_questions($quiz_id);
if (is_array($questions)) {
foreach ($questions as $question) {
$right_answer = get_post_meta($question->ID, '_question_right_answer', true);
$right_answers[$quiz_id][$question->ID] = $right_answer;
}
}
}
}
if (is_array($right_answers)) {
foreach ($right_answers as $quiz_id => $question) {
$count = 0;
if (is_array($question)) {
foreach ($question as $question_id => $answer) {
++$count;
if (isset($old_user_answers[$quiz_id])) {
$answers_linkup[$quiz_id][$count] = $question_id;
}
}
}
}
}
if (is_array($old_user_answers)) {
foreach ($old_user_answers as $quiz_id => $user_answers) {
foreach ($user_answers as $user_id => $answers) {
foreach ($answers as $answer_id => $user_answer) {
$question_id = $answers_linkup[$quiz_id][$answer_id];
$new_user_answers[$question_id] = $user_answer;
WooThemes_Sensei_Utils::sensei_grade_question_auto($question_id, '', $user_answer, $user_id);
}
$lesson_id = get_post_meta($quiz_id, '_quiz_lesson', true);
WooThemes_Sensei_Utils::sensei_start_lesson($lesson_id, $user_id);
WooThemes_Sensei_Utils::sensei_save_quiz_answers($new_user_answers, $user_id);
}
}
}
if ($current_page == $total_pages) {
return true;
} else {
return false;
}
// End If Statement
}
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>
<?php
}
// End If Statement, submission of quiz
$this->data = new stdClass();
// Get latest quiz answers and grades
$user_quizzes = $this->sensei_get_user_quiz_answers($post->ID);
$user_lesson_status = WooThemes_Sensei_Utils::user_lesson_status($quiz_lesson_id, $current_user->ID);
$user_quiz_grade = 0;
if (isset($user_lesson_status->comment_ID)) {
$user_quiz_grade = get_comment_meta($user_lesson_status->comment_ID, 'grade', true);
}
if (!is_array($user_quizzes)) {
$user_quizzes = array();
}
// Check again that the lesson is complete
$user_lesson_end = WooThemes_Sensei_Utils::user_completed_lesson($user_lesson_status);
$user_lesson_complete = false;
if ($user_lesson_end) {
$user_lesson_complete = true;
}
// End If Statement
$reset_allowed = get_post_meta($post->ID, '_enable_quiz_reset', true);
// Build frontend data object
$this->data->user_quizzes = $user_quizzes;
$this->data->user_quiz_grade = $user_quiz_grade;
$this->data->quiz_passmark = $quiz_passmark;
$this->data->quiz_lesson = $quiz_lesson_id;
$this->data->quiz_grade_type = $quiz_grade_type;
$this->data->user_lesson_end = $user_lesson_end;
$this->data->user_lesson_complete = $user_lesson_complete;
$this->data->lesson_quiz_questions = $lesson_quiz_questions;
$this->data->reset_quiz_allowed = $reset_allowed;
}
