public function fetchCountQuestions()
 {
     $m = new WpProQuiz_Model_QuizMapper();
     return $m->countQuestion($this->_id);
 }
 /**
  * @deprecated
  */
 public static function ajaxLoadFormOverview($data, $func)
 {
     if (!current_user_can('wpProQuiz_show_statistics')) {
         return json_encode(array());
     }
     $statisticRefMapper = new WpProQuiz_Model_StatisticRefMapper();
     $quizMapper = new WpProQuiz_Model_QuizMapper();
     $quizId = $data['quizId'];
     $page = isset($data['page']) && $data['page'] > 0 ? $data['page'] : 1;
     $limit = $data['pageLimit'];
     $start = $limit * ($page - 1);
     $statisticModel = $statisticRefMapper->fetchFormOverview($quizId, $start, $limit, $data['onlyUser']);
     $items = array();
     $maxPoints = $quizMapper->sumQuestionPoints($quizId);
     $sumQuestion = $quizMapper->countQuestion($quizId);
     foreach ($statisticModel as $model) {
         /*@var $model WpProQuiz_Model_StatisticFormOverview */
         if (!$model->getUserId()) {
             $model->setUserName(__('Anonymous', 'wp-pro-quiz'));
         }
         $sum = $model->getCorrectCount() + $model->getIncorrectCount();
         $result = round(100 * $model->getPoints() / ($sum * $maxPoints / $sumQuestion), 2) . '%';
         $items[] = array('userName' => $model->getUserName(), 'userId' => $model->getUserId(), 'testId' => $model->getStatisticRefId(), 'date' => WpProQuiz_Helper_Until::convertTime($model->getCreateTime(), get_option('wpProQuiz_statisticTimeFormat', 'Y/m/d g:i A')), 'result' => $result);
     }
     $d = array('items' => $items);
     if (isset($data['nav']) && $data['nav']) {
         $count = $statisticRefMapper->countFormOverview($quizId, $data['onlyUser']);
         $d['page'] = ceil(($count > 0 ? $count : 1) / $limit);
     }
     return json_encode($d);
 }