static function html($meta, $field)
{
global $post;
$post_id = $post->ID;
$question = get_post_meta($post_id, '_lpr_question', true);
$question = wp_parse_args($question, array('type' => null));
ob_start();
if ($q = LP_Question_Factory::get_question($post_id)) {
$q->admin_interface();
}
return ob_get_clean();
}
function learn_press_question_class($question = null)
{
if (!$question) {
$question = LP_Question_Factory::get_question(get_the_ID());
} elseif (is_numeric($question)) {
$question = LP_Question_Factory::get_question($question);
}
if ($question) {
$class = "learn-press-question-wrap question-type-{$question->type} question-{$question->id}";
$class = apply_filters('learn_press_question_class', $class, $question);
$class = explode(" ", $class);
$class = array_unique($class);
echo "class=\"" . join(' ', $class) . "\"";
}
}
/**
* __get function.
*
* @param string $key
*
* @return mixed
*/
public function __get($key)
{
if (isset($this->{$key})) {
return $this->{$key};
}
$value = null;
switch ($key) {
case 'current_question':
if (($question = learn_press_get_request('question')) && is_quiz()) {
$value = LP_Question_Factory::get_question($question);
}
break;
case 'questions':
$value = $this->get_questions();
break;
default:
if (strpos($key, '_lp_') === false) {
$key = '_lp_' . $key;
}
$value = get_post_meta($this->id, $key, true);
if ($key == '_lp_duration') {
$value = absint($value) * 60;
}
}
if (!empty($value)) {
$this->{$key} = $value;
}
return $value;
}
_e('Collapse All', 'learn_press');
?>
"></a>
</p>
</h3>
<div id="learn-press-list-questions">
<?php
if ($questions) {
$index = 0;
?>
<?php
foreach ($questions as $question) {
?>
<?php
$question = LP_Question_Factory::get_question($question);
$question_view = learn_press_get_admin_view('meta-boxes/quiz/question.php');
include $question_view;
?>
<?php
}
?>
<?php
$exclude_ids = array_keys($questions);
}
?>
</div>
<div class="question-actions">
<input type="text" class="regular-text no-submit" name="lp-new-question-name" placeholder="<?php
_e('The name of new question and hit enter', 'learn_press');
?>
static function save()
{
global $wpdb, $post;
$questions = learn_press_get_request('learn_press_question');
if ($all_questions = LP_Quiz::get_quiz($post->ID)->get_questions()) {
$all_questions = array_keys($all_questions);
}
// remove questions if it has removed from $_POST
if ($all_questions && $questions && ($remove_ids = array_diff($all_questions, array_keys($questions)))) {
$query = $wpdb->prepare("\n\t\t\t\t\tDELETE\n\t\t\t\t\tFROM {$wpdb->learnpress_quiz_questions}\n\t\t\t\t\tWHERE quiz_id = %d\n\t\t\t\t\tAND question_id IN(" . join(',', $remove_ids) . ")\n\t\t\t\t", $post->ID);
$wpdb->query($query);
do_action('learn_press_remove_quiz_questions', $remove_ids, $post->ID);
}
if (!$questions) {
return;
}
$titles = learn_press_get_request('learn-press-question-name');
// update the title of questions and save all data
foreach ($questions as $id => $data) {
$question = LP_Question_Factory::get_question($id);
if (!empty($titles[$id])) {
$wpdb->update($wpdb->posts, array('post_title' => $titles[$id]), array('ID' => $id), array('%s'));
}
$question->save($data);
}
// if there are new questions then insert into quiz
if ($new_ids = array_diff(array_keys($questions), $all_questions)) {
$values = array();
foreach ($new_ids as $id) {
$insert_data = apply_filters('learn_press_quiz_question_insert_data', array('question_id' => $id, 'quiz_id' => $post->ID, 'params' => ''));
$values[] = $wpdb->prepare("(%d, %d, %s)", $insert_data['quiz_id'], $insert_data['question_id'], $insert_data['param']);
}
$query = "\n\t\t\t\t\tINSERT INTO {$wpdb->learnpress_quiz_questions}(`quiz_id`, `question_id`, `params`)\n\t\t\t\t\tVALUES " . join(',', $values) . "\n\t\t\t\t";
$wpdb->query($query);
do_action('learn_press_insert_quiz_questions', $new_ids, $post->ID);
}
}
static function convert_question($id, $from, $to)
{
$question = LP_Question_Factory::get_question($id);
$question_meta = (array) get_post_meta($id, '_lp_question', true);
switch ($from) {
case 'true_or_false':
case 'single_choice':
if ($to == 'multi_choice') {
}
break;
case 'multi_choice':
$count = 0;
$true_option = 0;
$answers = $question->answers;
if ($to == 'true_or_false') {
$first_option = reset($answers);
$check_seconds_option = false;
if ($first_option['is_true'] != 1) {
$check_seconds_option = true;
}
foreach ($answers as $answer) {
$count++;
if ($answer['is_true'] == 1) {
$true_option++;
}
if ($true_option > 1) {
$answer['is_true'] = 0;
}
if ($count == 2 && $check_seconds_option) {
$answer['is_true'] = 0;
}
if ($count >= 2) {
break;
}
}
} elseif ($to == 'single_choice') {
foreach ($answers as $answer) {
if ($answer['is_true'] == 1) {
$true_option++;
}
if ($true_option > 2) {
$answer['is_true'] = 0;
}
}
}
$question_meta['answer'] = $answers;
}
$question_meta['type'] = $to;
update_post_meta($id, '_lpr_question', $question_meta);
}
static function init()
{
if (is_admin()) {
add_action('admin_enqueue_scripts', array(__CLASS__, 'admin_assets'));
add_action('save_post', array(__CLASS__, 'save'));
add_action('admin_print_footer_scripts', array(__CLASS__, 'admin_template'));
add_action('learn_press_convert_question_type', array(__CLASS__, 'convert_question'), 5, 4);
add_filter('learn_press_question_answers_data', array(__CLASS__, 'sanitize_answers'), 10, 2);
} else {
}
LP_Question_Factory::add_template('multi-choice-option', LP_Question_Multi_Choice::admin_js_template());
LP_Question_Factory::add_template('single-choice-option', LP_Question_Single_Choice::admin_js_template());
do_action('learn_press_question_factory_init', __CLASS__);
}
/**
* Get all types of question supported
*
* @return mixed
*/
function learn_press_question_types()
{
return LP_Question_Factory::get_types();
}
function evaluate_quiz_results($quiz_id, $progress)
{
$quiz = LP_Quiz::get_quiz($quiz_id);
$results = array('mark' => 0, 'correct' => 0, 'wrong' => 0, 'empty' => 0, 'mark_percent' => 0, 'correct_percent' => 0, 'wrong_percent' => 0, 'empty_percent' => 0, 'quiz_time' => $quiz->duration, 'quiz_mark' => $quiz->get_mark(), 'user_time' => 0, 'questions' => array());
$questions = $quiz->questions;
if ($questions) {
$questions = array_keys($questions);
}
if (!empty($questions)) {
foreach ($questions as $question_id) {
if (!empty($progress->question_answers[$question_id])) {
$question = LP_Question_Factory::get_question($question_id);
$check = $question->check($progress->question_answers[$question_id]);
if ($check['correct']) {
$results['correct']++;
} else {
$results['wrong']++;
}
$results['mark'] += $check['mark'];
} else {
$check = false;
$results['empty']++;
}
$results['questions'][$question_id] = $check;
}
}
$results['user_time'] = $progress->end - $progress->start;
return $results;
}
static function save($new, $old, $post_id, $field)
{
global $wpdb, $post;
//LP_Debug::instance()->add( __CLASS__ . '::' . __FUNCTION__ . '(' . join( ',', func_get_args() ) . ')' );
$questions = learn_press_get_request('learn_press_question');
/*if( $all_questions = LP_Quiz::get_quiz( $post->ID )->get_questions() ){
$all_questions = array_keys( $all_questions );
}*/
// Get all ids of questions stored
$remove_ids = $wpdb->get_col($wpdb->prepare("\n\t\t\t\t\tSELECT question_id\n\t\t\t\t\tFROM {$wpdb->prefix}learnpress_quiz_questions\n\t\t\t\t\tWHERE quiz_id = %d\n\t\t\t\t", $post->ID));
// delete all questions stored
$query = $wpdb->prepare("\n\t\t\t\tDELETE\n\t\t\t\tFROM {$wpdb->prefix}learnpress_quiz_questions\n\t\t\t\tWHERE quiz_id = %d\n\t\t\t", $post->ID, 1);
$wpdb->query($query);
learn_press_reset_auto_increment('learnpress_quiz_questions');
do_action('learn_press_remove_quiz_questions', $remove_ids, $post->ID);
if (!$questions) {
return;
}
$titles = learn_press_get_request('learn-press-question-name');
$values = array();
$order = 1;
// update the title of questions and save all data
foreach ($questions as $id => $data) {
$question = LP_Question_Factory::get_question($id);
if (!empty($titles[$id])) {
$wpdb->update($wpdb->posts, array('post_title' => $titles[$id]), array('ID' => $id), array('%s'));
}
$question->save($data);
$insert_data = apply_filters('learn_press_quiz_question_insert_data', array('question_id' => $id, 'quiz_id' => $post->ID, 'params' => ''));
$values[] = $wpdb->prepare("(%d, %d, %s, %d)", $insert_data['quiz_id'], $insert_data['question_id'], $insert_data['param'], $order++);
}
$query = "\n\t\t\t\tINSERT INTO {$wpdb->learnpress_quiz_questions}(`quiz_id`, `question_id`, `params`, `question_order`)\n\t\t\t\tVALUES " . join(',', $values) . "\n\t\t\t";
$wpdb->query($query);
do_action('learn_press_insert_quiz_questions', $questions, $post->ID);
}
public static function convert_question_type()
{
if (($from = learn_press_get_request('from')) && ($to = learn_press_get_request('to')) && ($question_id = learn_press_get_request('question_id'))) {
$data = array();
parse_str($_POST['data'], $data);
do_action('learn_press_convert_question_type', $question_id, $from, $to, $data);
$question = LP_Question_Factory::get_question($question_id, array('type' => $to));
learn_press_send_json(array('html' => $question->admin_interface(array('echo' => false)), 'icon' => $question->get_icon()));
} else {
throw new Exception(__('Convert question type must be specify the id, source and destination type', 'learn_press'));
}
die;
}
/**
* Load quiz question
*/
public static function load_quiz_question()
{
$quiz_id = !empty($_REQUEST['quiz_id']) ? absint($_REQUEST['quiz_id']) : 0;
$question_id = !empty($_REQUEST['question_id']) ? absint($_REQUEST['question_id']) : 0;
$user_id = !empty($_REQUEST['user_id']) ? absint($_REQUEST['user_id']) : 0;
global $quiz;
$quiz = LP_Quiz::get_quiz($quiz_id);
// save question if find it
self::save_question_if_needed();
//self::update_time_remaining();
$user = learn_press_get_current_user();
if ($user->id != $user_id) {
learn_press_send_json(array('result' => 'error', 'message' => __('Load question error. Try again!', 'learn_press')));
}
if (!$quiz_id || !$question_id) {
learn_press_send_json(array('result' => 'error', 'message' => __('Something is wrong. Try again!', 'learn_press')));
}
if ($question = LP_Question_Factory::get_question($question_id)) {
ob_start();
if ($progress = $user->get_quiz_progress($quiz->id)) {
learn_press_update_user_quiz_meta($progress->history_id, 'current_question', $question_id);
}
$question_answers = $user->get_question_answers($quiz->id, $question_id);
$question->render(array('answered' => $question_answers));
$content = ob_get_clean();
learn_press_send_json(array('result' => 'success', 'content' => $content, 'permalink' => learn_press_get_user_question_url($quiz_id, $question_id)));
}
}
