Laravel资源和资源收集

Question

我正在学习Laravel Resource API，并设置了控制器将数据传递给我的资源和资源集合。

这是服务器列表(index method)，show method显示单个服务器

控制器

指数法

return new DedicatedServerResourceCollection($product->where('parent_id', 1)->with('dedicatedServers')->get());

显示方法

return new DedicatedServerResource(DedicatedServer::findOrfail($id));

我需要以不同的格式设置我的集合和资源。如何让我的资源集合循环遍历每一项并相应地格式化更改？

资源收集

return [
    'productTypes' => $this->map(function($data){
    return [
          'id' => $data->id,
          'title' => $data->title,
          'tagline' => $data->tagline,
          'slug' => $data->slug,
          'dedicatedServers' => DedicatedServerResource::collection($this->resource)
           // I need to pass 'dedicatedServers' === $this->dedicated_servers
     ];
    })
  ];

资源

     return [
            'id' => $this->id,
            'productId' => $this->product_id,
            'type' => $this->type,
            'price' => $this->price,
            'config' => [
                'processorLine1' => $this->processor_line_1,
                'processorLine2' => $this->processor_line_2,
                'memory' => $this->memory,
                'storageLine1' => $this->storage_line_1,
                'storageLine2' => $this->storage_line_2,
                'data' => $this->data,
                'benchmark' => [
                    'benchmark' => $this->benchmark,
                    'benchmarkPercentage' => $this->benchmark_percentage
                ]
            ]
        ];

Answer 1

您应该使用“资源文件”或"$this->map(...)"，而不是两者兼用。

指数法

return ProductCollection::make(Product::with('dedicatedServers')->get());

ProductCollection

class ProductCollection extends ResourceCollection
{
    public function toArray($request)
    {
        return [
            'productTypes' => $this->collection,
        ];
    }
}

ProductResource

class ProductResource extends JsonResource
{
    public function toArray($request)
    {
        return [
            'id' => $this->id,
            'title' => $this->title,
            'tagline' => $this->tagline,
            'slug' => $this->slug,
            'dedicated_servers' => $this->whenLoaded('dedicatedServers'),
        ];
    }
}

DedicatedServerResource

class DedicatedServerResource extends JsonResource
{
    public function toArray($request)
    {
        return [
            'id' => $this->id,
            'product_id' => $this->product_id,
            'type' => $this->type,
            'processor_line_1' => $this->processor_line_1,
            'processor_line_2' => $this->processor_line_2,
            'memory' => $this->memory,
            'storage_line_1' => $this->storage_line_1,
            'storage_line_2' => $this->storage_line_2,
            'data' => $this->data,
            'benchmark' => $this->benchmark,
            'product' => ProductResource::make($this->whenLoaded('product')),
        ];
    }
}

注意:更愿意使用$this->whenLoaded('dedicatedServers')而不是$this->dedicatedServers来避免n+1问题。

Answer 2

您可能希望为DedicatedServer模型创建一个不同的资源类，比如SecondDedicatedServerResource。