/**
* The process grading function handles admin grading submissions.
*
* This function is hooked on to admin_init. It simply accepts
* the grades as the Grader selected theme and saves the total grade and
* individual question grades.
*
* @return bool
*/
public function admin_process_grading_submission()
{
// NEEDS REFACTOR/OPTIMISING, such as combining the various meta data stored against the sensei_user_answer entry
if (!isset($_POST['sensei_manual_grade']) || !wp_verify_nonce($_POST['_wp_sensei_manual_grading_nonce'], 'sensei_manual_grading') || !isset($_GET['quiz_id']) || $_GET['quiz_id'] != $_POST['sensei_manual_grade']) {
return false;
//exit and do not grade
}
$quiz_id = $_GET['quiz_id'];
$user_id = $_GET['user'];
global $woothemes_sensei;
$questions = WooThemes_Sensei_Utils::sensei_get_quiz_questions($quiz_id);
$quiz_lesson_id = $woothemes_sensei->quiz->get_lesson_id($quiz_id);
$quiz_grade = 0;
$count = 0;
$quiz_grade_total = $_POST['quiz_grade_total'];
$all_question_grades = array();
$all_answers_feedback = array();
foreach ($questions as $question) {
++$count;
$question_id = $question->ID;
if (isset($_POST['question_' . $question_id])) {
$question_grade = 0;
if ($_POST['question_' . $question_id] == 'right') {
$question_grade = $_POST['question_' . $question_id . '_grade'];
}
// add data to the array that will, after the loop, be stored on the lesson status
$all_question_grades[$question_id] = $question_grade;
// tally up the total quiz grade
$quiz_grade += $question_grade;
}
// endif
// Question answer feedback / notes
$question_feedback = '';
if (isset($_POST['questions_feedback'][$question_id])) {
$question_feedback = wp_unslash($_POST['questions_feedback'][$question_id]);
}
$all_answers_feedback[$question_id] = $question_feedback;
}
// end for each $questions
//store all question grades on the lesson status
$woothemes_sensei->quiz->set_user_grades($all_question_grades, $quiz_lesson_id, $user_id);
//store the feedback from grading
$woothemes_sensei->quiz->save_user_answers_feedback($all_answers_feedback, $quiz_lesson_id, $user_id);
// $_POST['all_questions_graded'] is set when all questions have been graded
// in the class sensei grading user quiz -> display()
if ($_POST['all_questions_graded'] == 'yes') {
// set the users total quiz grade
if (0 < intval($quiz_grade_total)) {
$grade = abs(round(doubleval($quiz_grade) * 100 / $quiz_grade_total, 2));
} else {
$grade = 0;
}
WooThemes_Sensei_Utils::sensei_grade_quiz($quiz_id, $grade, $user_id);
// Duplicating what Frontend->sensei_complete_quiz() does
$pass_required = get_post_meta($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, $lesson_metadata);
if (in_array($lesson_status, array('passed', 'graded'))) {
/**
* Summary.
*
* Description.
*
* @since 1.7.0
*
* @param int $user_id
* @param int $quiz_lesson_id
*/
do_action('sensei_user_lesson_end', $user_id, $quiz_lesson_id);
}
// end if in_array
}
// end if $_POST['all_que...
if (isset($_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 {
$load_url = add_query_arg(array('message' => 'graded'));
}
wp_safe_redirect(esc_url_raw($load_url));
exit;
}
/**
* build_data_array builds the data for use on the page
* Overloads the parent method
* @since 1.3.0
* @return array
*/
public function build_data_array()
{
$data_array = WooThemes_Sensei_Utils::sensei_get_quiz_questions($this->quiz_id);
return $data_array;
}
public function process_grading()
{
// NEEDS REFACTOR/OPTIMISING, such as combining the various meta data stored against the sensei_user_answer entry
if (isset($_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;
}
}
}
public function calculate_user_module_progress_custom($user_id, $module_id, $course_id)
{
$lessons = Sensei_Core_Modules::get_lessons($course_id, $module_id);
//if (is_wp_error($lessons) || 0 >= count($lessons)) return 0;
$completed = false;
$lesson_count = 0;
$completed_count = 0;
$strcom = '';
foreach ($lessons as $lesson) {
$lesson_id = $lesson->ID;
$lesson_id = (int) $lesson_id;
$quiz_id = WooThemes_Sensei_Lesson::lesson_quizzes($lesson_id, $post_status = 'any');
$quiz_id = (int) $quiz_id;
$lesson_quiz_questions = WooThemes_Sensei_Utils::sensei_get_quiz_questions($quiz_id);
if (count($lesson_quiz_questions) > 0) {
$lesson_status = WooThemes_Sensei_Utils::user_lesson_status($lesson_id, $user_id);
$lesson_status = $lesson_status->comment_approved;
++$lesson_count;
if ($lesson_status == 'passed') {
++$completed_count;
} else {
$question = $lesson_quiz_questions[0];
$question_title = $question->post_title;
if ($question_title == 'Offline Upload') {
++$completed_count;
}
//$strcom = $strcom.' -- Lesson ID: '.$lesson_id.' '.print_r($lesson_quiz_questions, true);
}
}
//$strcom = $strcom.' -- '.$user_id.' '.$lesson_id.' '.$lesson_status. ' '.print_r($lesson_quizzes, true);
}
$module_progress = $completed_count / $lesson_count * 100;
return (double) $module_progress;
//return $strcom;
}
/**
* Update question answers to use new data structure
*
* @since 1.3.0
* @access public
* @return void
*/
public function update_question_answer_data($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 == $total_pages) {
return true;
} else {
return false;
}
// End If Statement
}
public static function sensei_delete_quiz_answers($quiz_id = 0, $user_id = 0)
{
if (intval($user_id) == 0) {
$user_id = get_current_user_id();
}
$delete_answers = false;
if (intval($quiz_id) > 0) {
$questions = WooThemes_Sensei_Utils::sensei_get_quiz_questions($quiz_id);
foreach ($questions as $question) {
$delete_answers = WooThemes_Sensei_Utils::sensei_delete_activities(array('post_id' => $question->ID, 'user_id' => $user_id, 'type' => 'sensei_user_answer'));
}
}
return $delete_answers;
}
