/**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = StockOpnameDtlModel::find()->with('products');
     $dataProvider = new ActiveDataProvider(['query' => $query]);
     $this->load($params);
     if (!$this->validate()) {
         $query->where('1=0');
         return $dataProvider;
     }
     $query->andFilterWhere(['id_opname' => $this->id_opname, 'id_product' => $this->id_product, 'id_uom' => $this->id_uom, 'qty' => $this->qty]);
     return $dataProvider;
 }