user->isGuest) { return $this->goHome(); } $model = new LoginForm(); if ($model->load(Yii::$app->request->post()) && $model->login()) { return $this->goBack(); } else { return $this->render('index', [ 'model' => $model, ]); } } public function actionLogout() { Yii::$app->user->logout(); return $this->goHome(); } }