/**
  * After save $event->sender, save log data.
  *
  * @param $event Event
  */
 public function saveLog($event)
 {
     /** @var ActiveRecord $sender */
     $sender = $event->sender;
     $this->log->entity_id = $sender->getPrimaryKey();
     if (!empty($this->log->attributes)) {
         $this->log->save();
     }
 }
 /**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = UserDbLog::find();
     $query->joinWith(['user']);
     $dataProvider = new ActiveDataProvider(['query' => $query, 'sort' => ['defaultOrder' => ['created_at' => SORT_DESC]]]);
     $this->load($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(['user_db_log.id' => $this->id, 'user_db_log.entity_id' => $this->entity_id, 'user_db_log.created_at' => $this->created_at]);
     $query->andFilterWhere(['like', 'user_db_log.entity', $this->entity])->andFilterWhere(['like', 'user.username', $this->userName])->andFilterWhere(['like', 'user_db_log.event', $this->event])->andFilterWhere(['like', 'user_db_log.attributes', $this->attributes]);
     return $dataProvider;
 }