/**
  * @param $id
  * @return null|static
  * @throws HttpException
  */
 private function findModel($id)
 {
     if (($model = Template::findOne($id)) !== null) {
         return $model;
     } else {
         throw new HttpException(404, 'The requested page does not exist.');
     }
 }
 /**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = Template::find()->client();
     $dataProvider = new ActiveDataProvider(['query' => $query]);
     $this->load($params);
     if (!$this->validate()) {
         // uncomment the following line if you do not want to any records when validation fails
         // $query->where('0=1');
         return $dataProvider;
     }
     $query->andFilterWhere(['id' => $this->id, 'is_active' => $this->is_active, 'user_id' => $this->user_id, 'created_at' => $this->created_at, 'updated_at' => $this->updated_at, 'deleted_at' => $this->deleted_at]);
     $query->andFilterWhere(['like', 'template_name', $this->template_name])->andFilterWhere(['like', 'template_type', $this->template_type]);
     return $dataProvider;
 }