Laravel - 如何在应用服务提供商中获取用户 ID

Question

我尝试在我的应用服务提供者中获取用户 ID，但我收到一个错误，显示 ErrorException: Trying to get property of non-object，知道如何获取用户 ID 吗？

应用服务提供者:

<?php

namespace App\Providers;

use Illuminate\Support\ServiceProvider;
use App\Project;

use Log;
use Auth;

class AppServiceProvider extends ServiceProvider
{
    /**
     * Bootstrap any application services.
     *
     * @return void
     */
    public function boot()
    { 
        $userid =  Auth::user()->id;
        Log::info('userid :', [$userid]);


        $project = Project::where('user_id',Auth::user()->id)->count();

    }
}

错误:

local.ERROR: ErrorException: Trying to get property of non-object in C:\wamp64\www\test\app\Providers\AppServiceProvider.php:20 Stack trace: #0 C:\wamp64\www\test\app\Providers\AppServiceProvider.php(20): Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(8, 'Trying to get p...', 'C:\\wamp64\\www\\f...', 20, Array) #1 [internal function]: App\Providers\AppServiceProvider->boot() #2 C:\wamp64\www\test\vendor\laravel\framework\src\Illuminate\Container\Container.php(507): call_user_func_array(Array, Array) #3 C:\wamp64\www\test\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(734): Illuminate\Container\Container->call(Array) #4 C:\wamp64\www\test\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(717): Illuminate\Foundation\Application->bootProvider(Object(App\Providers\AppServiceProvider)) #5 [internal function]: Illuminate\Foundation\Application->Illuminate\Foundation\{closure}(Object(App\Providers\AppServiceProvider), 19) #6 C:\wamp64\www\test\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(718): array_walk(Array, Object(Closure)) #7 C:\wamp64\www\test\vendor\laravel\framework\src\Illuminate\Foundation\Bootstrap\BootProviders.php(17): Illuminate\Foundation\Application->boot() #8 C:\wamp64\www\test\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(203): Illuminate\Foundation\Bootstrap\BootProviders->bootstrap(Object(Illuminate\Foundation\Application)) #9 C:\wamp64\www\test\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php(222): Illuminate\Foundation\Application->bootstrapWith(Array) #10 C:\wamp64\www\test\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php(117): Illuminate\Foundation\Http\Kernel->bootstrap() #11 C:\wamp64\www\test\vendor\laravel\framework\src\Illuminate\Foundation\Http\Kernel.php(87): Illuminate\Foundation\Http\Kernel->sendRequestThroughRouter(Object(Illuminate\Http\Request)) #12 C:\wamp64

Answer 1

使用 View::composer('*',)在所有 View 中使用 Auth。

 use Illuminate\Support\Facades\View;
.........
public function boot()
{ 
     View::composer('*', function($view)
     {
         if (Auth::check()){
         $project = Project::where('user_id',Auth::id() )->count();
    }
 });

您可以将其理解为在 View 渲染之前进行身份验证后，您需要在这些之间进行检查而不是在此之前。