public function actionLoadAjax()
 {
     Yii::$app->response->format = 'json';
     $output = array();
     $startDate = new DateTime(Yii::$app->request->get('start'));
     $endDate = new DateTime(Yii::$app->request->get('end'));
     $entries = CalendarEntry::getContainerEntriesByRange($startDate, $endDate, $this->contentContainer);
     foreach ($entries as $entry) {
         $output[] = $entry->getFullCalendarArray();
     }
     return $output;
 }