Question

我在宅基地上使用Laravel 5.3。这是我用于通过pusher和laravel echo广播事件的代码，用于实时通知用户新消息 -

 class NewMessageReceived implements ShouldBroadcast
{
    use InteractsWithSockets, SerializesModels;
    public $message;
    public $user;
    public $sender;
    /**
     * Create a new event instance.
     *
     * @return void
     */
    public function __construct(Message $message, User $user)
    {
        $this->message = $message;
        $this->user = $user;
        $this->sender = \Auth::user();
    }

    /**
     * Get the channels the event should broadcast on.
     *
     * @return Channel|array
     */
    public function broadcastOn()
    {
        return new PrivateChannel('user.'. $this->user->id);
    }

}

以下是调用此事件的代码 -

     try{
             $m = $privateChat->messages()->save($m);
                if( isset(Auth::user()->guide))
                   event ( new NewMessageReceived( $m, $m->messageable->tourist->user ));
                 else
                   event ( new NewMessageReceived( $m, $m->messageable->guide->user ));

                 return $m;
            }
            catch(Exception $e){
                return $e;
            }

在vue中有一个ajax调用，它接收上面代码生成的响应，即$ m。

问题是如果我使用下面的代码而不是上面的代码，响应速度至少快5倍。我只需要删除事件触发部分以使其运行更快（这是不希望的，因为我想实时更新用户） -

    try{
         $m = $privateChat->messages()->save($m);

             return $m;
        }
        catch(Exception $e){
            return $e;
        }

如果你能帮助我发现这种行为背后的原因以及如何实现这一切，而不是现在存在的延迟，那将会很有帮助。

Answer 1

试试这个：

将if逻辑移至事件类

class NewMessageReceived implements ShouldBroadcast
{
    use InteractsWithSockets, SerializesModels;
    public $message;
    public $user;
    public $sender;
    /**
     * Create a new event instance.
     *
     * @return void
     */
    public function __construct(Message $message)
    {
        $this->message = $message;

        $this->user = isset(Auth::user()->guide)) ? $message->messageable->tourist->user : $this->user = $message->messageable->guide->user;
        $this->sender = \Auth::user();
    }

    /**
     * Get the channels the event should broadcast on.
     *
     * @return Channel|array
     */
    public function broadcastOn()
    {
        return new PrivateChannel('user.'. $this->user->id);
    }

}

现在您的事件致电。

$m = $privateChat->messages()->save($m);
event(new NewMessageReceived($m));
return $m;

Answer 2

您应将format更改为ShouldBroadcast。这样可以延迟解决问题。

Pusher和laravel回声太慢或我的代码有问题？

2 个答案: