/**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = BaseBillableItem::find();
     $dataProvider = new ActiveDataProvider(['query' => $query, 'pagination' => array('pageSize' => 10)]);
     $this->load($params);
     if (!$this->validate()) {
         return $dataProvider;
     }
     $query->andFilterWhere(['id' => $this->id, 'status' => $this->status, 'type' => $this->type, 'amount' => $this->amount, 'created_at' => $this->created_at, 'created_by' => $this->created_by, 'updated_at' => $this->updated_at, 'updated_by' => $this->updated_by]);
     $query->andFilterWhere(['like', 'name', $this->name]);
     $query->andFilterWhere(['like', 'description', $this->description]);
     return $dataProvider;
 }