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<?php |
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namespace Huntie\JsonApi\Serializers; |
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use Request; |
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use Illuminate\Contracts\Pagination\LengthAwarePaginator; |
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class CollectionSerializer extends JsonApiSerializer |
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{ |
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/** |
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* The collection of records to transform. |
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* |
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* @var \Illuminate\Support\Collection |
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*/ |
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protected $records; |
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/** |
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* The subset of attributes to return on each record type. |
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* |
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* @var array |
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*/ |
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protected $fields; |
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/** |
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* The relationships to load and include. |
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* |
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* @var array |
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*/ |
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protected $include; |
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/** |
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* Create a new JSON API collection serializer. |
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* |
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* @param \Illuminate\Support\Collection|LengthAwarePaginator $records The collection of records to serialize |
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* @param array|null $fields Subset of fields to return by record type |
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* @param array|null $include Relations to include |
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*/ |
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public function __construct($records, array $fields = [], array $include = []) |
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{ |
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parent::__construct(); |
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if ($records instanceof LengthAwarePaginator) { |
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$this->addPaginationLinks($records); |
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$this->records = $records->getCollection(); |
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} else { |
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$this->records = $records; |
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} |
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$this->fields = array_unique($fields); |
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$this->include = array_unique($include); |
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} |
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/** |
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* Return a collection of JSON API resource objects for the record set. |
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* |
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* @return \Illuminate\Support\Collection |
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*/ |
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public function toResourceCollection() |
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{ |
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return $this->records->map(function ($record) { |
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return (new ResourceSerializer($record, $this->fields, $this->include))->toResourceObject(); |
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}); |
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} |
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/** |
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* Return primary data for the JSON API document. |
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* |
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* @return mixed |
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*/ |
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protected function getPrimaryData() |
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{ |
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return $this->toResourceCollection()->toArray(); |
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} |
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/** |
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* Return any secondary included resource objects. |
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* |
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* @throws \Huntie\JsonApi\Exceptions\InvalidRelationPathException |
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* |
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* @return \Illuminate\Support\Collection |
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*/ |
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public function getIncluded() |
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{ |
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$included = collect(); |
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foreach ($this->records as $record) { |
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$included = $included->merge( |
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(new ResourceSerializer($record, $this->fields, $this->include)) |
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->getIncluded() |
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); |
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} |
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return $included->unique(); |
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} |
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/** |
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* Add pagination links and meta information to the main document. |
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* |
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* @param LengthAwarePaginator $paginator |
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*/ |
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protected function addPaginationLinks($paginator) |
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{ |
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$this->addLinks(array_map(function ($page) use ($paginator) { |
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return $this->formatPaginationQueryString(Request::query(), $page, $paginator->perPage()); |
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}, array_filter([ |
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'first' => 1, |
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'last' => $paginator->lastPage(), |
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'prev' => $paginator->currentPage() > 1 ? $paginator->currentPage() - 1 : null, |
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'next' => $paginator->currentPage() < $paginator->lastPage() ? $paginator->currentPage() + 1 : null, |
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]))); |
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} |
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/** |
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* Add JSON API pagination parameters to request query set based on |
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* selected pagination strategy, and return the built URL query string. |
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* |
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* @param array $query |
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* @param int $number |
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* @param int $size |
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*/ |
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protected function formatPaginationQueryString(array $query = [], int $number, int $size): string |
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{ |
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if (config('jsonapi.pagination_method') === 'offset-based') { |
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$query['page'] = [ |
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'offset' => ($number - 1) * $size, |
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'limit' => $size, |
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]; |
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} |
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$query['page'] = compact('number', 'size'); |
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return '?' . urldecode(http_build_query($query)); |
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} |
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} |
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huntie /
laravel-simple-jsonapi
