Question

当我尝试显示所有具有权限的帖子时，问题是未定义的偏移量。如果没有对链接进行编码和解码，则永远不会发生此问题。当我编码并尝试通过编码链接来编辑帖子时，这没问题。但是，当我尝试显示所有帖子时，发生了问题，并显示了未定义的偏移量[0]。如何解决此问题？

我的管理员来编辑帖子

@php $parameter = Hashids::connection('main')->encode($post->id); @endphp

@if(check_user_permissions($request, "BlogPost@edit", $parameter))
      <a href="{{route('admins-blogpost.edit', $parameter)}}" class="btn btn-xs btn-warning">
          <i class="fa fa-edit"></i>
      </a>
@else
       <a href="#" class="btn btn-xs btn-warning disabled">
           <i class="fa fa-edit"></i>
       </a>
@endif

我的观点

<?php
use Vinkla\Hashids\Facades\Hashids;
function check_user_permissions($request, $actionName = NULL, $id = NULL)
{
    $currentUser = $request->user();
        if($actionName)
        {
            $currentActionName = $actionName;
        }
        else{
            $currentActionName = ($request->route()->getActionName());
        }

        list($controller, $method) = explode('@', $currentActionName);
        $controller = str_replace(["App\\Http\\Controllers\\Backend\\", "Controller"], "", $controller);


        $crudPermissionsMap = [
            'crud' => ['create', 'store', 'edit', 'update', 'destroy', 'restore', 'forceDestroy', 'index', 'view']
        ];

        $classesMap = [
            'BlogPost'       => 'post',
            'CategoriesPost' => 'category',
            'Users'          => 'user'
        ];

        foreach($crudPermissionsMap as $permission => $methods){

            if(in_array($method, $methods) && isset($classesMap[$controller]))
            {
                $classesName = $classesMap[$controller];
                // dd("{$permission}-{$classesName}");
                if($classesName == 'post' && in_array($method, ['edit', 'update', 'restore', 'destroy', 'forceDestroy']))
                {
                    $id = !is_null($id) ? $id : $request->route("admins_blogpost");
                    if( $id
                        && (!$currentUser->can('update-others-post') || !$currentUser->can('delete-others-post')))
                    {

                                $post = \App\Post::withTrashed()->find(Hashids::decode($id)[0]);
                                if($post->author_id != $currentUser->id){

                                return false;

                            }
                    }
                }
                elseif(! $currentUser->can("{$permission}-{$classesName}")){
                    // abort(403, "forbidden access!");
                    return false;
                }
                break;
            }
        }
    return true;
}

检查权限的方法和方法

{"status": "success", "data": { "candles":[["2018-10-09T09:15:00+0530",6830.7,6940,6830.7,6903.6,232210],["2018-10-09T10:15:00+0530",6903.7,6905.8,6824,6833.65,126885],["2018-10-09T11:15:00+0530",6831.15,6857,6750.15,6767.95,152549]

Answer 1

对不起，这是我的错。我不检查所有帖子。必须$post = \App\Post::withTrashed()->find(Hashids::decode($id)[0]?? $id));

如何在Laravel中修复检查权限而没有未定义的偏移量？

1 个答案: