public function actionTambahAliasCustomers()
 {
     $model = new Customersalias();
     if ($model->load(Yii::$app->request->post())) {
         if ($model->validate()) {
             $model->CREATED_BY = Yii::$app->user->identity->username;
             $model->CREATED_AT = date("Y-m-d H:i:s");
             $model->save();
             return $this->redirect(['index-alias']);
         }
     } else {
         return $this->renderAjax('formalias', ['model' => $model, 'cus_data' => self::aryData_Customers(), 'cus_dis' => self::aryData_Dis()]);
     }
 }