php artisan route :: list给我一个错误：试图获取非对象的属性

Juliatzin 发表于 Dev

朱利钦

当我打字

php artisan route:list

我懂了

 Trying to get property of non-object

当我打字

php artisan route:list -v

我懂了

Exception trace:
 () at /home/vagrant/Code/app/CategorySettings.php:31
 Illuminate\Foundation\Bootstrap\HandleExceptions->handleError() at /home/vagrant/Code/app/CategorySettings.php:31
 App\CategorySettings->getDefaultSettings() at /home/vagrant/Code/app/Http/Controllers/CategoryController.php:27
 App\Http\Controllers\CategoryController->__construct() at n/a:n/a
 ReflectionClass->newInstanceArgs() at /home/vagrant/Code/vendor/laravel/framework/src/Illuminate/Container/Container.php:776
 Illuminate\Container\Container->build() at /home/vagrant/Code/vendor/laravel/framework/src/Illuminate/Container/Container.php:627
 Illuminate\Container\Container->make() at /home/vagrant/Code/vendor/laravel/framework/src/Illuminate/Foundation/Application.php:674
 Illuminate\Foundation\Application->make() at /home/vagrant/Code/vendor/laravel/framework/src/Illuminate/Foundation/Console/RouteListCommand.php:170
 Illuminate\Foundation\Console\RouteListCommand->getControllerMiddleware() at /home/vagrant/Code/vendor/laravel/framework/src/Illuminate/Foundation/Console/RouteListCommand.php:151
 Illuminate\Foundation\Console\RouteListCommand->getMiddleware() at /home/vagrant/Code/vendor/laravel/framework/src/Illuminate/Foundation/Console/RouteListCommand.php:119
 Illuminate\Foundation\Console\RouteListCommand->getRouteInformation() at /home/vagrant/Code/vendor/laravel/framework/src/Illuminate/Foundation/Console/RouteListCommand.php:89
 Illuminate\Foundation\Console\RouteListCommand->getRoutes() at /home/vagrant/Code/vendor/laravel/framework/src/Illuminate/Foundation/Console/RouteListCommand.php:76
 Illuminate\Foundation\Console\RouteListCommand->fire() at n/a:n/a
 call_user_func_array() at /home/vagrant/Code/vendor/laravel/framework/src/Illuminate/Container/Container.php:503
 Illuminate\Container\Container->call() at /home/vagrant/Code/vendor/laravel/framework/src/Illuminate/Console/Command.php:150
 Illuminate\Console\Command->execute() at /home/vagrant/Code/vendor/symfony/console/Command/Command.php:256
 Symfony\Component\Console\Command\Command->run() at /home/vagrant/Code/vendor/laravel/framework/src/Illuminate/Console/Command.php:136
 Illuminate\Console\Command->run() at /home/vagrant/Code/vendor/symfony/console/Application.php:838
 Symfony\Component\Console\Application->doRunCommand() at /home/vagrant/Code/vendor/symfony/console/Application.php:189
 Symfony\Component\Console\Application->doRun() at /home/vagrant/Code/vendor/symfony/console/Application.php:120
 Symfony\Component\Console\Application->run() at /home/vagrant/Code/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php:107
 Illuminate\Foundation\Console\Kernel->handle() at /home/vagrant/Code/artisan:35

这是相关的代码

public function getDefaultSettings()
{
    $user = Auth::user();
    $categorySetting = $user->settings;   // <- line 31
...
}

错误消息似乎告诉我有关$ user的错误消息是当我dd $ categorySetting或$ user时，它为我提供了正确的对象...

    User {#418 ▼
  #table: "users"
  #fillable: array:16 [▶]
  #hidden: array:2 [▶]
  #connection: null
  #primaryKey: "id"
  #perPage: 15
  +incrementing: true
  +timestamps: true
  #attributes: array:20 [▶]
  #original: array:20 [▶]
  #relations: array:1 [▶]
  #visible: []
  #appends: []
  #guarded: array:1 [▶]
  #dates: []
  #dateFormat: null
  #casts: []
  #touches: []
  #observables: []
  #with: []
  #morphClass: null
  +exists: true
  +wasRecentlyCreated: false
}

你知道怎么了吗???

丹尼尔·卡斯特罗

Auth :: user（）仅在有用户登录时才返回User模型，因此当您在浏览器中dd时，将返回您的用户。

但是，当您从cli调用route：list时，$ user为null，因此“试图获取非对象的属性”。

您需要弄清楚为什么route：list会调用getDefaultSettings（）。我的猜测是您正在在route.php文件中执行某些操作，以调用该函数。

解决该问题的一种快速方法是，使用check方法检查用户模型之前是否有用户登录：

public function getDefaultSettings()
{
    if (Auth::check()) {
        $user = Auth::user();
        $categorySetting = $user->settings;
    ...
    }
}

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