logging - 如何在 Laravel 中注册 ServiceProvide 时记录消息？

Question

所以我有一个 Laravel 服务提供者，我想在应用它时创建一个 DEBUG 日志条目:

<?php

use Illuminate\Support\ServiceProvider;

class MyServiceProvider extends ServiceProvider
{
    public function register() {
        Log::debug('message'); //fails, Log facade alias isn't available yet
        $this->app['log']->debug('message'); //fails too
    }
}

如何做到这一点？

Answer 1

在laravel中，服务提供者定义在app/config/app.php

如果 MyServiceProvider 早于 LogServiceProvider 出现，它将失败，因为 LogServiceProvider 尚未注册。对面，如果后面显示MyServiceProvider，就是你想要的答案。

更多详情，ProviderRepository负责注册应用服务提供商。

<?php
return array(
    'providers' => array(
        'Illuminate\Foundation\Providers\ArtisanServiceProvider',
        'Illuminate\Auth\AuthServiceProvider',
        'Illuminate\Cache\CacheServiceProvider',
        'Illuminate\Session\CommandsServiceProvider',
        'Illuminate\Foundation\Providers\ConsoleSupportServiceProvider',
        'Illuminate\Routing\ControllerServiceProvider',
        'Illuminate\Cookie\CookieServiceProvider',
        'Illuminate\Database\DatabaseServiceProvider',
        'Illuminate\Encryption\EncryptionServiceProvider',
        'Illuminate\Filesystem\FilesystemServiceProvider',
        'Illuminate\Hashing\HashServiceProvider',
        'Illuminate\Html\HtmlServiceProvider',
        'Illuminate\Log\LogServiceProvider', // Log facade is registered here.
        'Illuminate\Mail\MailServiceProvider',
        'Illuminate\Database\MigrationServiceProvider',
        'Illuminate\Pagination\PaginationServiceProvider',
        'Illuminate\Queue\QueueServiceProvider',
        'Illuminate\Redis\RedisServiceProvider',
        'Illuminate\Remote\RemoteServiceProvider',
        'Illuminate\Auth\Reminders\ReminderServiceProvider',
        'Illuminate\Database\SeedServiceProvider',
        'Illuminate\Session\SessionServiceProvider',
        'Illuminate\Translation\TranslationServiceProvider',
        'Illuminate\Validation\ValidationServiceProvider',
        'Illuminate\View\ViewServiceProvider',
        'Illuminate\Workbench\WorkbenchServiceProvider',
        'MyServiceProvider', // You have to put this after LogServiceProvider.
    )
);