function learn_press_reset_user_quiz($user_id = null, $quiz_id = null)
{
if (empty($user_id)) {
$user_id = get_current_user_id();
}
$quiz_id = learn_press_get_quiz_id($quiz_id);
if (!apply_filters('learn_press_reset_user_quiz', true, $quiz_id, $user_id)) {
return;
}
$keys = array('_lpr_quiz_start_time', '_lpr_quiz_completed', '_lpr_question_answer', '_lpr_quiz_questions', '_lpr_quiz_question_answer', '_lpr_quiz_current_question');
foreach ($keys as $meta_key) {
$meta = get_user_meta($user_id, $meta_key, true);
if (!empty($meta[$quiz_id])) {
unset($meta[$quiz_id]);
if (count($meta)) {
update_user_meta($user_id, $meta_key, $meta);
} else {
delete_user_meta($user_id, $meta_key);
}
}
}
if ($course_id = learn_press_is_final_quiz($quiz_id)) {
$finished_courses = get_user_meta($user_id, '_lpr_course_finished', true);
if (is_array($finished_courses) && ($pos = array_search($course_id, $finished_courses)) !== false) {
unset($finished_courses[$pos]);
update_user_meta($user_id, '_lpr_course_finished', $finished_courses);
}
$user_finished = get_post_meta($course_id, '_lpr_user_finished', true);
if ($user_finished) {
if (false !== ($position = array_search($user_id, $user_finished))) {
unset($user_finished[$position]);
update_post_meta($course_id, '_lpr_user_finished', $user_finished);
}
}
}
do_action('learn_press_after_reset_user_quiz', $quiz_id, $user_id);
}
/**
* Check if user has completed a quiz or not
*
* @author TuNN
*
* @param int $user_id The ID of user need to check
* @param int $quiz_id The ID of quiz need to check
*
* @return boolean
*/
function learn_press_user_has_completed_quiz($user_id = null, $quiz_id = null)
{
_deprecated_function(__FUNCTION__, '1.0', 'Need to edit this function');
$completed = false;
// if $user_id is not passed, try to get it from current user
if (!$user_id) {
$user_id = learn_press_get_current_user_id();
if (!$user_id) {
$completed = false;
}
}
// if $quiz_id is not passed, try to get it from current quiz
$quiz_id = learn_press_get_quiz_id($quiz_id);
$quiz_completed = get_user_meta($user_id, '_lpr_quiz_completed', true);
$retake = get_user_meta($user_id, '_lpr_quiz_retake', true);
// if user can not retake a quiz or has already completed a quiz
if ((!$retake || !in_array($quiz_id, $retake)) && $quiz_completed && array_key_exists($quiz_id, $quiz_completed)) {
$completed = true;
}
return apply_filters('learn_press_user_has_completed_quiz', $completed, $user_id, $quiz_id);
}
/**
* Get questions from quiz for user
*
* @param int $quiz_id
* @param int $user_id
* @return array
*/
function learn_press_get_user_quiz_questions($quiz_id = null, $user_id = null)
{
$quiz_id = learn_press_get_quiz_id($quiz_id);
if (!$user_id) {
$user_id = get_current_user_id();
}
$questions = get_user_meta($user_id, '_lpr_quiz_questions', true);
if ($questions && !empty($questions[$quiz_id])) {
$user_quiz_questions = $questions[$quiz_id];
$quiz_questions = get_post_meta($quiz_id, '_lpr_quiz_questions', true);
if ($quiz_questions) {
$quiz_questions = array_keys($quiz_questions);
} else {
$quiz_questions = array();
}
return array_unique(array_merge($user_quiz_questions, $quiz_questions));
}
return null;
}
function learn_press_output_question($question_id, $with_answered = true, $quiz_id = 0)
{
if (!$question_id && $quiz_id) {
/*if( $questions = learn_press_get_quiz_questions( $quiz_id ) ){
$question_id = reset( $questions );
}*/
}
if ($question_id) {
$question = LPR_Question_Type::instance($question_id);
$answered = null;
if ($with_answered) {
$answers = learn_press_get_question_answers(null, learn_press_get_quiz_id(0));
if (isset($answers[$question_id])) {
$answered = array('answer' => $answers[$question_id]);
}
}
$question && $question->render($answered);
}
}
