public function actionGetNewAnswers($id, $answer_id)
 {
     Yii::$app->response->format = Response::FORMAT_JSON;
     $result = ['id' => $id, 'answer_id' => $answer_id];
     try {
         $data = Thread::perform('GetLastAnswerId', ['id' => $id, 'answer_id' => $answer_id]);
         $result['answer_id'] = $data['answer_id'];
         if ($data['answer_id'] > $answer_id) {
             $dataProvider = (new ThreadSearch())->search([]);
             $dataProvider->query->joinWith('answers');
             $dataProvider->query->andWhere(['id' => $id]);
             $dataProvider->query->andWhere($this->getSearchOptions());
             $models = $dataProvider->getModels();
             $result['html'] = $this->renderPartial('_comments', ['model' => reset($models)]);
         }
     } catch (ErrorResponseException $e) {
     }
     return $result;
 }