Php 使用keyby收集方法检索有说服力的api资源

我有一个端点

users/{user}

现在在用户资源中，我想返回

     public function toArray($request)
        {
            // return parent::toArray($request);

            return [
                'id' => $this->id,
                'name' => $this->name,
//                'comments' => $this->post->comments->keyBy('post_id')
                'comments' => new CommentCollection($this->post->comments->keyBy->post_id)

            ];
        }

评论收集类

public function toArray($request)
    {
        // return parent::toArray($request);

        return [
            'data' => $this->collection->transform(function($comment){
                return [
                    'id' => $comment->id,
                    'comment' => $comment->comment,
                ];
            }),
        ];
    }

<?php
namespace App\Http\Resources\Collection;

use Illuminate\Http\Resources\Json\ResourceCollection;

class CommentGroupCollection extends ResourceCollection
{
    public $collects = 'App\Http\Resources\Collection\CommentCollection';

    public $preserveKeys = true;

    public function toArray($request)
    {
        return $this->collection;
    }

}

<?php
namespace App\Http\Resources\Collection;

use Illuminate\Http\Resources\Json\ResourceCollection;

class CommentCollection extends ResourceCollection
{
    public $collects = 'App\Http\Resources\Comment';

    public $preserveKeys = true;

    public function toArray($request)
    {
        return $this->collection;
    }

}

and then 

new CommentGroupCollection($comments->groupBy('post_id')),

但是结果将不包括作为键的

post\u id

，如何使其返回具有键

post\u id

的注释集合

更新

use App\models\Post;
use App\Http\Resources\Postas PostResource;

Route::get('/posts', function () {
    return PostResource::collection(Post::all()->keyBy->slug);
});

这是正确的工作，但如果我将用户资源内的post集合用作关系，它就不工作了！这就是我在评论集中的要求。

就像这样：

公共功能待命（$request）
{
//返回父：：toArray（$request）；
返回[
'id'=>this->id，
“名称”=>$this->name，
//'comments'=>this->post->comments->keyBy（'post\u id'））
'comments'=>newcommentcollection（$this->post->comments）->keyBy（'post\u id'））
];
}

我做了什么，创建了另一个ResourceGroupCollection类

public function toArray($request)
    {
        // return parent::toArray($request);

        return [
            'data' => $this->collection->transform(function($comment){
                return [
                    'id' => $comment->id,
                    'comment' => $comment->comment,
                ];
            }),
        ];
    }

<?php
namespace App\Http\Resources\Collection;

use Illuminate\Http\Resources\Json\ResourceCollection;

class CommentGroupCollection extends ResourceCollection
{
    public $collects = 'App\Http\Resources\Collection\CommentCollection';

    public $preserveKeys = true;

    public function toArray($request)
    {
        return $this->collection;
    }

}

<?php
namespace App\Http\Resources\Collection;

use Illuminate\Http\Resources\Json\ResourceCollection;

class CommentCollection extends ResourceCollection
{
    public $collects = 'App\Http\Resources\Comment';

    public $preserveKeys = true;

    public function toArray($request)
    {
        return $this->collection;
    }

}

and then 

new CommentGroupCollection($comments->groupBy('post_id')),

---

您可以看到，我有确切的代码，但它不起作用，这就是我发布问题的原因。您可以发布CommentCollection类吗？不是toArray函数（），它不会在您的案例中使用，它是如何构造的？你有一个post_id栏吗？你能添加（新评论集（$this->post->comments））？我有一些关于我的问题的更新，你能调查一下吗，也许我们会有一些线索。我找到了一个解决方案，并发布了，也许你想检查一下。