(1/1)FatalErrorException在ClearanceMiddleware.php第17行中调用null上的成员函数hasPermissionTo()

时间:2018-05-17 06:09:05

标签: php laravel permissions roles spatie

https://scotch.io/tutorials/user-authorization-in-laravel-54-with-spatie-laravel-permission

我已按照上述链接提供给用户设置角色和权限的参考。

我收到错误:

(1/1) FatalErrorException
Call to a member function hasPermissionTo() on null

in ClearanceMiddleware.php line 17

我的数据库表是  This is my db table

Cleareance中间件代码是:

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\Auth;

class ClearanceMiddleware {
    /**
    * Handle an incoming request.
    *
    * @param  \Illuminate\Http\Request  $request
    * @param  \Closure  $next
    * @return mixed
    */
    public function handle($request, Closure $next) {        
        if (Auth::user()->hasPermissionTo('Administer roles & permissions')) //If user has this //permission
    {
        return $next($request);
    }

    if ($request->is('posts/create'))//If user is creating a post
    {
        if (!Auth::user()->hasPermissionTo('Create Post'))
    {
        abort('401');
    } 
    else {
             return $next($request);
         }
    }

    if ($request->is('posts/*/edit')) //If user is editing a post
    {
        if (!Auth::user()->hasPermissionTo('Edit Post')) {
            abort('401');
        } else {
            return $next($request);
        }
    }

    if ($request->isMethod('Delete')) //If user is deleting a post
    {
        if (!Auth::user()->hasPermissionTo('Delete Post')) {
             abort('401');
        } 
        else 
        {
            return $next($request);
        }
    }

    return $next($request);
    }
}

请清除这一点。

1 个答案:

答案 0 :(得分:1)

您似乎未登录自己的应用。因此user为null,并且在null上调用成员函数会产生错误。

您可以使用:

$user = Auth::user();

if(isset($user)){
  // Check for permission
}

除此之外,您必须定义角色,并将这些角色分配给您的用户 在检查权限之前。 (我假设你已经完成了这些。)

使用具有权限的用户登录,然后重试。