/**
  * Finds user by [[username]]
  *
  * @return User|null
  */
 public function getUser()
 {
     // if ($this->user === false) {
     if (true) {
         $this->user = Vip::find()->andWhere(['or', ['username' => $this->username], ['email' => $this->username]])->one();
     }
     return $this->user;
 }
 /**
  * Lists all Vip models.
  * @return mixed
  */
 public function actionIndex()
 {
     $dataProvider = new ActiveDataProvider(['query' => Vip::find()]);
     return $this->render('index', ['dataProvider' => $dataProvider]);
 }