/**
  * @param array|null $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = ConquerableStation::find();
     $dataProvider = new ActiveDataProvider(['query' => $query]);
     if (!$this->load($params) && !$this->validate()) {
         return $dataProvider;
     }
     $query->andFilterWhere(['like', 'stationID', $this->stationID])->andFilterWhere(['like', 'solarSystemID', $this->solarSystemID])->andFilterWhere(['like', 'stationName', $this->stationName]);
     return $dataProvider;
 }