Question

其他资源路由，例如order和product控制器索引功能正在工作并显示索引页面但是当我请求类别索引页面laravel 5.8时说

方法Illuminate \ Database \ Eloquent \ Collection :: currentPage不存在视图category / index.php

这是除类别控制器之外用于所有其他路由的路由组，用于显示来自索引功能的索引页和用于索引功能的仪表板

Route::group(['prefix' => 'dashboard', 'namespace' => 'Dashboard', 'middlware' => ['auth:admin']], function () {
    Route::name('dashboard.')->group(function () {
        Route::resource('/', 'DashboardController');
        Route::resource('/products', 'ProductController'); // ->except(['create', 'index']);
        Route::resource('/categories', 'categoryController'); // ->except(['create', 'index']);
        Route::resource('/orders', 'orderController'); // ->except(['create', 'index']);
    });
});

它们工作得很好，但是当我配置多重身份验证并进行管理员身份验证时，它开始显示这些错误如果有人从事laravel5.8

，请提供帮助

Answer 1

您正在从currentPage实例而不是collection实例上使用方法来静态调用LengthAwarePaginator属性

您的控制器必须返回分页查询构建器实例Illuminate\Pagination\LengthAwarePaginator，如

class categoryController extends Controller
{
   public function index()
   {
      $categories = \DB::table('categories')->orderByDesc('id')->paginate(4);
      return view('dashboard.categories.index', compact('categories'));
   }
}

然后在您的dashboard/categories/index视图中，将currentPage()用作函数

{{ $categories->currentPage() }}

从docs

PS：不要只复制粘贴此代码，这可能会导致其他错误，因为我只是尽最大努力猜测了控制器的外观

Answer 2

zahid hasan emon bro这是我的控制器

class categorycontroller extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        //
        $data = [];
//        $data['categories'] = \DB::table('categories')->get();
        $data['categories'] = \DB::table('categories')->orderByDesc('id')->paginate(4);
        return view('dashboard.categories.index',$data);
    }

这是我的分类页面

    @section('page-subtitle','List of all categories')

@section('content')
    <div class="box">
        <div class="box-header with-border">
            <h3 class="box-title"></h3>
            <a href="{{route('dashboard.categories.create')}}" class="btn btn-primary">New Category</a>
            <div class="box-tools pull-right">
                {{(($categories->currentPage() * $categories->perPage())- $categories->perPage() )+1 }}
                of {{$categories->total()}}
            </div>
        </div>
        <div class="box-body">
            <table class="table table-condensed table-striped table-responsive">
                <tr>
                    <td>ID</td>
                    <td>Name</td>
                    <td>Action</td>
                </tr>
                @forelse($categories as $category)
                    <tr>
                        <td>{{$category->id}}</td>
                        <td>{{$category->name}}</td>
                        <td>
                            <div class="action-box">
                                <a href="{{route('dashboard.categories.edit',$category->id)}}"><i class="fa fa-edit"></i></a>
                                <a href=""><i class="fa fa-remove"></i></a>
                            </div>
                        </td>
                    </tr>
                @empty
                    <tr class="text-center warning">
                        <td colspan="3">No Record Found</td>
                    </tr>
                @endforelse
            </table>
        </div>

        <!-- /.box-body -->
        <div class="box-footer">
            @if(count($categories))
                <div class="pull-left">
                    {{$categories->links()}}
                </div>
            @endif

        </div>
        <!-- /.box-footer-->
    </div>
    <!-- /.box -->
@endsection

我认为我用来显示页数的currentpage（）方法造成了问题，但是在进行多重身份验证之前效果很好

方法Illuminate \ Database \ Eloquent \ Collection :: currentPage不存在

2 个答案:

PS：不要只复制粘贴此代码，这可能会导致其他错误，因为我只是尽最大努力猜测了控制器的外观