Php 使用Laravel 5.8中的Laravel嵌套集查询祖先

我正在使用并且很难查询我的类别模型的

祖先

这就是我想做的：

有效

（这给了我一个所有类别的列表）

（这是所有嘉年华游戏的列表）

不起作用

（这显示的是嘉年华游戏列表，而不是大型游戏类别）

我相信这只是我的理解力不足——感谢您的帮助

web.php

...
Route::get('/', 'CategoryController@index')->name('categories');
Route::get('/{category}/{slug?}', 'CategoryController@show')->name('show');
...

...
class CategoryController extends Controller
{
    public function index()

    {
        $categories = Category::get()->toTree();

        return view('categories.index', compact('categories'));
    }

    public function show(Category $category, $slug = null)
    {
        if (!is_null($slug)) {
            $categories = Category::ancestorsOf($category);
            return view('categories.show_subcategory', compact('categories', 'category', 'slug'));
        } else {
            return view('categories.show', compact('category'));
        }

    }

}

...
@foreach($category['children']->chunk(3) as $chunk)
    <div class="row">
        @foreach($chunk as $category)
            <div class="col-md-4" style="margin-bottom: 2rem">
                <div class="feature-box center media-box fbox-bg">
                    <div class="fbox-media">
                        <a href="/categories/{{$category->slug}}">
                            <img class="image_fade"
                                 src="https://*****.s3-us-west-1.amazonaws.com/{{ $category->photo }}"
                                 alt="Featured Box Image"
                                 style="opacity: 1;"></a>
                    </div>
                    <div class="fbox-desc">
                        <h3>{{$category->name}}</h3>
                        <span><a href="/categories/{{$category->slug}}">Learn More</a></span>
                    </div>
                </div>
            </div>

            Products
            @if(count($category->products) > 0)
                @foreach($category->products as $product)
                    {{$product->title}}
                @endforeach
            @endif
        @endforeach
    </div>
@endforeach
...

CategoryController.php

...
Route::get('/', 'CategoryController@index')->name('categories');
Route::get('/{category}/{slug?}', 'CategoryController@show')->name('show');
...

...
class CategoryController extends Controller
{
    public function index()

    {
        $categories = Category::get()->toTree();

        return view('categories.index', compact('categories'));
    }

    public function show(Category $category, $slug = null)
    {
        if (!is_null($slug)) {
            $categories = Category::ancestorsOf($category);
            return view('categories.show_subcategory', compact('categories', 'category', 'slug'));
        } else {
            return view('categories.show', compact('category'));
        }

    }

}

...
@foreach($category['children']->chunk(3) as $chunk)
    <div class="row">
        @foreach($chunk as $category)
            <div class="col-md-4" style="margin-bottom: 2rem">
                <div class="feature-box center media-box fbox-bg">
                    <div class="fbox-media">
                        <a href="/categories/{{$category->slug}}">
                            <img class="image_fade"
                                 src="https://*****.s3-us-west-1.amazonaws.com/{{ $category->photo }}"
                                 alt="Featured Box Image"
                                 style="opacity: 1;"></a>
                    </div>
                    <div class="fbox-desc">
                        <h3>{{$category->name}}</h3>
                        <span><a href="/categories/{{$category->slug}}">Learn More</a></span>
                    </div>
                </div>
            </div>

            Products
            @if(count($category->products) > 0)
                @foreach($category->products as $product)
                    {{$product->title}}
                @endforeach
            @endif
        @endforeach
    </div>
@endforeach
...

显示\u category.blade.php

...
Route::get('/', 'CategoryController@index')->name('categories');
Route::get('/{category}/{slug?}', 'CategoryController@show')->name('show');
...

...
class CategoryController extends Controller
{
    public function index()

    {
        $categories = Category::get()->toTree();

        return view('categories.index', compact('categories'));
    }

    public function show(Category $category, $slug = null)
    {
        if (!is_null($slug)) {
            $categories = Category::ancestorsOf($category);
            return view('categories.show_subcategory', compact('categories', 'category', 'slug'));
        } else {
            return view('categories.show', compact('category'));
        }

    }

}

...
@foreach($category['children']->chunk(3) as $chunk)
    <div class="row">
        @foreach($chunk as $category)
            <div class="col-md-4" style="margin-bottom: 2rem">
                <div class="feature-box center media-box fbox-bg">
                    <div class="fbox-media">
                        <a href="/categories/{{$category->slug}}">
                            <img class="image_fade"
                                 src="https://*****.s3-us-west-1.amazonaws.com/{{ $category->photo }}"
                                 alt="Featured Box Image"
                                 style="opacity: 1;"></a>
                    </div>
                    <div class="fbox-desc">
                        <h3>{{$category->name}}</h3>
                        <span><a href="/categories/{{$category->slug}}">Learn More</a></span>
                    </div>
                </div>
            </div>

            Products
            @if(count($category->products) > 0)
                @foreach($category->products as $product)
                    {{$product->title}}
                @endforeach
            @endif
        @endforeach
    </div>
@endforeach
...

。。。
@foreach（$category['children']->chunk（3）作为$chunk）
@foreach（$chunk作为$category）
{{$category->name}
产品
@如果（计数（$category->products）>0）
@foreach（$category->products as$product）
{{$product->title}
@endforeach
@恩迪夫
@endforeach
@endforeach
...
调用
show（）
函数时，“嘉年华游戏”的名称如何转换为
$category
模型？另外，你能展示一些样本数据吗？