监听 Laravel 迁移事件答案

【问题标题】：Listen Laravel migration events监听 Laravel 迁移事件
【发布时间】：2020-08-28 04:19:48
【问题描述】：

Laravel 迁移事件监听器不起作用。

config/app.php

'providers' => [ App\Providers\EventServiceProvider::class, ....

app/Providers/EventServiceProvider.php

namespace App\Providers;

use App\Listeners\DeleteUnitsImagesFromAws;
use Illuminate\Database\Events\MigrationsStarted;
use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;
use Illuminate\Support\Facades\Event;

class EventServiceProvider extends ServiceProvider
{
    /**
     * The event listener mappings for the application.
     *
     * @var array
     */
    protected $listen = [
        MigrationsStarted::class => [
            DeleteUnitsImagesFromAws::class,
        ]
    ];

    /**
     * Register any events for your application.
     *
     * @return void
     */
    public function boot()
    {
        parent::boot();
        Event::listen(MigrationsStarted::class, function($event) {
            \Log::channel('payment')->info(['class' => 'DeleteUnitsImagesFromAws']);
        });

    }
}

上面的日志不工作，但下面的工作。

namespace Illuminate\Database\Events;

use Illuminate\Contracts\Database\Events\MigrationEvent as MigrationEventContract;

class MigrationsStarted implements MigrationEventContract
{
    //
    public function __construct()
    {
        \Log::channel('daily')->info(['class' => '1000']);
    }
}

我应该如何收听这个事件？

【问题讨论】：

标签： php laravel events migration listener

【解决方案1】：

已解决

我比较了我的项目代码和新的 Laravel 代码。原因被覆盖 MigrationServiceProvider 。创建 Migrator 类时缺少 events 参数。这里是改变/工人阶级

namespace App\Providers;

use App\Migrator;
use Illuminate\Foundation\Application;
use Illuminate\Support\ServiceProvider;

class MigrationServiceProvider extends ServiceProvider
{
    /**
     * Register any application services.
     *
     * @return void
     */
    public function register()
    {
        $this->app->singleton('migrator', function (Application $app) {
            return new Migrator(
                $app->make("migration.repository"),
                $app->make("db"),
                $app->make("files"),
                $app->make('events')// missed in old code
            );
        });
    }
}

【讨论】：