/**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = Mobile::find();
     $dataProvider = new ActiveDataProvider(['query' => $query]);
     $this->load($params);
     if (!$this->validate()) {
         // uncomment the following line if you do not want to return any records when validation fails
         // $query->where('0=1');
         return $dataProvider;
     }
     $query->andFilterWhere(['id' => $this->id, 'price' => $this->price]);
     $query->andFilterWhere(['like', 'brand', $this->brand])->andFilterWhere(['like', 'model', $this->model])->andFilterWhere(['like', 'description', $this->description])->andFilterWhere(['like', 'category', $this->category])->andFilterWhere(['like', 'available', $this->available]);
     return $dataProvider;
 }
 public function actionMobileItem($id)
 {
     header('Content-type: application/json');
     $mobile = Mobile::find($id)->one();
     $productItem = ['id' => $mobile->id, 'brand' => $mobile->brand, 'model' => $mobile->model, 'description' => $mobile->description, 'price' => $mobile->price, 'category' => $mobile->category, 'available' => $mobile->available, 'image' => $mobile->image];
     echo json_encode($productItem);
 }