public function actionAnswer($id) { $answer = $this->findAnswer($id); $user = Yii::$app->user->getIdentity(); list($result, $like) = Hate::Answer($user, $answer); if ($result) { return $this->message('提交成功!', 'success'); } else { return $this->message($like ? $like->getErrors() : '提交失败!'); } }