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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php
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namespace Illuminate\Http\Resources\Json;
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use Countable;
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use Illuminate\Http\Resources\CollectsResources;
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use Illuminate\Pagination\AbstractCursorPaginator;
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use Illuminate\Pagination\AbstractPaginator;
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use IteratorAggregate;
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class ResourceCollection extends JsonResource implements Countable, IteratorAggregate
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{
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    use CollectsResources;
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    /**
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     * The resource that this resource collects.
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     *
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     * @var string
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     */
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    public $collects;
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    /**
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     * The mapped collection instance.
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     *
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     * @var \Illuminate\Support\Collection
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     */
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    public $collection;
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    /**
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     * Indicates if all existing request query parameters should be added to pagination links.
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     *
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     * @var bool
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     */
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    protected $preserveAllQueryParameters = false;
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    /**
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     * The query parameters that should be added to the pagination links.
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     *
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     * @var array|null
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     */
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    protected $queryParameters;
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    /**
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     * Create a new resource instance.
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     *
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     * @param  mixed  $resource
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     * @return void
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     */
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    public function __construct($resource)
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    {
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        parent::__construct($resource);
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        $this->resource = $this->collectResource($resource);
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    }
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    /**
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     * Indicate that all current query parameters should be appended to pagination links.
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     *
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     * @return $this
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     */
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    public function preserveQuery()
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    {
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        $this->preserveAllQueryParameters = true;
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        return $this;
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    }
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    /**
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     * Specify the query string parameters that should be present on pagination links.
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     *
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     * @param  array  $query
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     * @return $this
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     */
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    public function withQuery(array $query)
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    {
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        $this->preserveAllQueryParameters = false;
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        $this->queryParameters = $query;
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        return $this;
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    }
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    /**
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     * Return the count of items in the resource collection.
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     *
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     * @return int
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     */
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    public function count(): int
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    {
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        return $this->collection->count();
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    }
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    /**
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     * Transform the resource into a JSON array.
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     *
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     * @param  \Illuminate\Http\Request  $request
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     * @return array|\Illuminate\Contracts\Support\Arrayable|\JsonSerializable
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     */
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    public function toArray($request)
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    {
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        return $this->collection->map->toArray($request)->all();
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    }
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    /**
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     * Create an HTTP response that represents the object.
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     *
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     * @param  \Illuminate\Http\Request  $request
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     * @return \Illuminate\Http\JsonResponse
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     */
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    public function toResponse($request)
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    {
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        if ($this->resource instanceof AbstractPaginator || $this->resource instanceof AbstractCursorPaginator) {
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            return $this->preparePaginatedResponse($request);
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        }
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        return parent::toResponse($request);
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    }
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    /**
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     * Create a paginate-aware HTTP response.
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     *
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     * @param  \Illuminate\Http\Request  $request
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     * @return \Illuminate\Http\JsonResponse
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     */
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    protected function preparePaginatedResponse($request)
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    {
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        if ($this->preserveAllQueryParameters) {
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            $this->resource->appends($request->query());
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        } elseif (! is_null($this->queryParameters)) {
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            $this->resource->appends($this->queryParameters);
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        }
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        return (new PaginatedResourceResponse($this))->toResponse($request);
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    }
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}