public function search($params)
 {
     $query = Participation::find();
     $dataProvider = new ActiveDataProvider(['query' => $query]);
     if (!($this->load($params) && $this->validate())) {
         return $dataProvider;
     }
     $query->andFilterWhere(['id' => $this->id, 'user_id' => $this->user_id, 'teamevent_id' => $this->teamevent_id, 'time_deleted' => $this->time_deleted, 'time_create' => $this->time_create]);
     $query->andFilterWhere(['like', 'status', $this->status]);
     return $dataProvider;
 }