/**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     if (Yii::$app->user->identity->rol_id == 2) {
         # code...
         $query = Correctivas::find();
     } else {
         $query = Correctivas::find()->joinWith('idEquipo')->where(['id_area' => Yii::$app->user->identity->id_departamento]);
     }
     $dataProvider = new ActiveDataProvider(['query' => $query]);
     /* $this->load($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(['id_correctiva' => $this->id_correctiva, 'id_equipo' => $this->id_equipo, 'fecha_inicio' => $this->fecha_inicio, 'dias' => $this->dias]);
     $query->andFilterWhere(['like', 'estado', $this->estado])->andFilterWhere(['like', 'diagnostico', $this->diagnostico])->andFilterWhere(['like', 'reparacion', $this->reparacion]);
     return $dataProvider;
 }