private static function getData()
 {
     if (!ContentTypes::$_data) {
         if (!(ContentTypes::$_data = Yii::$app->cache->get('ContentTypes3'))) {
             $tmp = ContentTypes::find()->asArray()->all();
             foreach ($tmp as $v) {
                 ContentTypes::$_data[$v['model_id']] = $v['model_name'];
             }
             Yii::$app->cache->set('ContentTypes', ContentTypes::$_data, 60);
         }
     }
 }