public function actionOffers($catgry = 0)
 {
     $category = 'Sve ponude';
     $request = \Yii::$app->request;
     $descript = $request->post('descript') != null ? $request->post('descript') : '';
     $query = Offer::find()->where(['like', 'descript', $descript])->orderBy('priority');
     if ($catgry > 0) {
         $query = Offer::find()->where(['catgry' => $catgry])->andWhere(['like', 'descript', $descript])->orderBy('priority');
         $category = Catgry::findOne($catgry);
         $category = $category->name;
     }
     $dataProvider = new ActiveDataProvider(['query' => $query, 'pagination' => ['pageSize' => 9]]);
     return $this->render('offers', ['dataProvider' => $dataProvider, 'category' => $category]);
 }