/**
  * Creates a new Code model.
  * If creation is successful, the browser will be redirected to the 'view' page.
  * @return mixed
  */
 public function actionImport()
 {
     $model = new InvitationCodeSearch();
     if (\App::$app->request->post()) {
         $num = \App::$app->request->post()['Code']['num'];
         member::set_invitation($num);
         return $this->redirect(['index']);
     } else {
         return $this->render('import', ['model' => $model]);
     }
 }