Laravel 从 belongsToMany 关系中获取数据

Question

在我的网站上，我有 Products 和 ProductCategories，它们是 belongsToMany 关系，

控制器：

$products = Products::paginate(10);

查看：

@foreach($products as $product)
    {{$product->productCategories}}
@endforeach

我得到了这个结果：

[{"id":6,"category_name":"\u062f\u0645 \u0646\u0648\u0634 \u0647\u0627","lang":"fa",
  "images":{"images":{"original":"\/uploads\/post_images\/2017\/1513065012.jpeg"},
  "created_at":"2017-12-12 07:50:12",
  "updated_at":"2017-12-12 07:50:12","pivot":{"products_id":44,"product_categories_id":6}}]

现在如何访问此结果中的 category_name？

此代码对我不起作用，我收到错误消息：

{{$product->productCategories->category_name}}

错误：

Property [category_name] does not exist on this collection instance.

或

{{$product->productCategories['category_name']}}

错误：

Undefined index: category_name

Answer 1

您需要迭代集合：

@foreach($products as $product)
    @foreach($product->productCategories as $category)
        {{ $category->category_name }}
    @endforeach
@endforeach

Laravel 从 belongsToMany 关系中获取数据

Laravel get data from belongsToMany relationship

laravel

laravel-5.5