laravel - 如何将自定义事件添加到 Laravel 模型

Question

我有付款模式，想在付款确认后触发自定义事件。

我的型号代码:

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Payment extends Model
{
    protected $dates = [
        'created_at', 'updated_at', 'confirmed_at',
    ];

    public function confirmed(){
        $this->setAttribute('confirmed_at', now());
        $this->setAttribute('status', 'confirmed');
    }
}

Answer 1

我可以开火 confirmed事件在 Payment->confirmed()方法，像这样:

    public function confirmed(){
        // todo, throw an exception if already confirmed

        $this->setAttribute('confirmed_at', now());
        $this->setAttribute('status', 'confirmed');

        // fire custom event
        $this->fireModelEvent('confirmed');
    }

并将自定义事件注册到 $dispatchesEvents

 protected $dispatchesEvents = [
        'confirmed' =>  \App\Events\Payment\ConfirmedEvent::class
 ];

完毕。\App\Events\Payment\ConfirmedEvent::class事件将在模型 confirmed() 时调用方法被调用。

如果confirmed() 方法被调用两次，它也建议抛出一个异常。