php Laravel 5 事件处理程序未触发
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Laravel 5 Event Handler Not Firing
提问by Ed Stephenson
So I'm trying out the new Laravel 5 Event methodology.
所以我正在尝试新的 Laravel 5 事件方法。
In my repository, I'm firing the event "KitchenStored" as so:
在我的存储库中，我正在触发事件“KitchenStored”，如下所示：
// Events
use App\Events\KitchenStored;
class EloquentKitchen implements KitchenInterface {
public function store($input) {
$kitchen = new $this->kitchen;
$kitchen->name = $input['name'];
$kitchen->save();
\Event::fire(new KitchenStored($kitchen));
return $kitchen;
}
Which successfully fires this event:
成功触发此事件：
<?php namespace App\Events;
use App\Events\Event;
use Illuminate\Queue\SerializesModels;
class KitchenStored extends Event {
use SerializesModels;
/**
* Create a new event instance.
*
* @return void
*/
public function __construct($kitchen)
{
$this->kitchen = $kitchen;
}
}
However, it doesn't link up to this handler:
但是，它不会链接到此处理程序：
<?php namespace App\Handlers\Events;
use App\Events\KitchenStored;
use Illuminate\Queue\InteractsWithQueue;
use Illuminate\Contracts\Queue\ShouldBeQueued;
class AttachCurrentUserToKitchen {
/**
* Create the event handler.
*
* @return void
*/
public function __construct()
{
dd('handler');
}
/**
* Handle the event.
*
* @param KitchenStored $event
* @return void
*/
public function handle(KitchenStored $event)
{
//
}
}
which I know because the dd('handler'); isn't fired during the request lifecycle.
我知道这是因为 dd('handler'); 在请求生命周期中不会被触发。
I have registered the event with its listener here:
我已在此处向其侦听器注册了该事件：
<?php namespace App\Providers;
use Illuminate\Contracts\Events\Dispatcher as DispatcherContract;
use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;
class EventServiceProvider extends ServiceProvider {
/**
* The event handler mappings for the application.
*
* @var array
*/
protected $listen = [
App\Events\KitchenStored::class => [
App\Handlers\Events\AttachCurrentUserToKitchen::class
]
];
/**
* Register any other events for your application.
*
* @param \Illuminate\Contracts\Events\Dispatcher $events
* @return void
*/
public function boot(DispatcherContract $events)
{
parent::boot($events);
Event::listen('App\Events\KitchenStored',
'App\Handlers\Events\AttachCurrentUserToKitchen');
}
}
Can anyone explain this process better so I can keep going with the cleanest code I have to date?
谁能更好地解释这个过程，以便我可以继续使用迄今为止最干净的代码？
Many thanks
非常感谢
回答by John Berberich
In EventServiceProvider.php, include the leading \when referencing a class using the ::classnotation:
在 中EventServiceProvider.php，\使用::class符号引用类时包括前导：
protected $listener = [
\App\Events\KitchenStored::class => [
\App\Handlers\Events\AttachCurrentUserToKitchen::class,
],
];
You could also add usestatements and keep your listener mappings short:
您还可以添加use语句并保持您的侦听器映射简短：
use App\Events\KitchenStored;
use App\Handlers\Events\AttachCurrentUserToKitchen;
...
protected $listener = [
KitchenStored::class => [
AttachCurrentUserToKitchen:class,
],
];
Or just use the string notation:
或者只使用字符串表示法：
protected $listener = [
'App\Events\KitchenStored' => [
'App\Handlers\Events\AttachCurrentUserToKitchen',
],
];
回答by Carter Fort
If you run php artisan optimize, your event handlers should start listening.
如果您运行php artisan optimize，您的事件处理程序应该开始侦听。
Credit to mattstauffer from the larachat slack channel for that one.
感谢来自 larachat slack 频道的 mattstauffer。
回答by jb360
I ran
我跑了
composer dumpautoload
followed by
其次是
php artisan clear-compiled
Then my events began firing.
然后我的事件开始发生。
回答by kururin
I had a similar issue and I fixed it by deleting the vendor\compiled.php file. Then I run "composer update" again and now the handler is firing as expected.
我有一个类似的问题，我通过删除 vendor\compiled.php 文件来修复它。然后我再次运行“composer update”，现在处理程序按预期触发。
