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<?php |
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namespace W2w\Lib\Apie\Plugins\Pagination; |
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use erasys\OpenApi\Spec\v3\Document; |
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use erasys\OpenApi\Spec\v3\Header; |
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use erasys\OpenApi\Spec\v3\Operation; |
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use erasys\OpenApi\Spec\v3\PathItem; |
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use erasys\OpenApi\Spec\v3\Reference; |
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use erasys\OpenApi\Spec\v3\Schema; |
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use Pagerfanta\Adapter\AdapterInterface; |
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use Pagerfanta\Adapter\ArrayAdapter; |
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use Pagerfanta\Pagerfanta; |
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use W2w\Lib\Apie\Core\SearchFilters\SearchFilterHelper; |
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use W2w\Lib\Apie\Core\SearchFilters\SearchFilterRequest; |
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use W2w\Lib\Apie\Events\DecodeEvent; |
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use W2w\Lib\Apie\Events\DeleteResourceEvent; |
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use W2w\Lib\Apie\Events\ModifySingleResourceEvent; |
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use W2w\Lib\Apie\Events\NormalizeEvent; |
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use W2w\Lib\Apie\Events\ResponseAllEvent; |
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use W2w\Lib\Apie\Events\ResponseEvent; |
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use W2w\Lib\Apie\Events\RetrievePaginatedResourcesEvent; |
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use W2w\Lib\Apie\Events\RetrieveSingleResourceEvent; |
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use W2w\Lib\Apie\Events\StoreExistingResourceEvent; |
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use W2w\Lib\Apie\Events\StoreNewResourceEvent; |
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use W2w\Lib\Apie\PluginInterfaces\ApieAwareInterface; |
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use W2w\Lib\Apie\PluginInterfaces\ApieAwareTrait; |
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use W2w\Lib\Apie\PluginInterfaces\NormalizerProviderInterface; |
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use W2w\Lib\Apie\PluginInterfaces\OpenApiEventProviderInterface; |
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use W2w\Lib\Apie\PluginInterfaces\ResourceLifeCycleInterface; |
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use W2w\Lib\Apie\Plugins\Pagination\Normalizers\PaginatorNormalizer; |
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class PaginationPlugin implements ResourceLifeCycleInterface, NormalizerProviderInterface, OpenApiEventProviderInterface, ApieAwareInterface |
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{ |
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use ApieAwareTrait; |
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const PREV_HEADER = 'x-pagination-previous'; |
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const NEXT_HEADER = 'x-pagination-next'; |
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const FIRST_HEADER = 'x-pagination-first'; |
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const LAST_HEADER = 'x-pagination-last'; |
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const COUNT_HEADER = 'x-pagination-count'; |
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public function getNormalizers(): array |
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{ |
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return [new PaginatorNormalizer()]; |
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} |
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public function onOpenApiDocGenerated(Document $document): Document |
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{ |
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/** @var PathItem[] $paths */ |
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$paths = $document->paths ?? []; |
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$added = false; |
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foreach ($paths as $url => $path) { |
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if (strpos($url, '{id}', 0) === false && $path->get && $this->patch($path->get)) { |
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$added = true; |
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} |
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} |
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if ($added) { |
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$document->components->headers['Count'] = new Header('number of results', ['schema' => new Schema(['type' => 'number', 'format' => 'int'])]); |
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$document->components->headers['Url'] = new Header('pagination url', ['schema' => new Schema(['type' => 'string', 'format' => 'url']) ]); |
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} |
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return $document; |
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} |
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private function patch(Operation $operation): bool |
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{ |
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$added = false; |
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foreach ($operation->responses as &$response) { |
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if ($response instanceof Reference) { |
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continue; |
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} |
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$added = true; |
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$countSchema = new Reference('#/components/headers/Count'); |
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$urlSchema = new Reference('#/components/headers/Url'); |
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$response->headers[self::COUNT_HEADER] = $countSchema; |
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$response->headers[self::PREV_HEADER] = $urlSchema; |
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$response->headers[self::NEXT_HEADER] = $urlSchema; |
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$response->headers[self::FIRST_HEADER] = $urlSchema; |
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$response->headers[self::LAST_HEADER] = $urlSchema; |
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} |
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return $added; |
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} |
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public function onPreDeleteResource(DeleteResourceEvent $event) |
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{ |
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} |
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public function onPostDeleteResource(DeleteResourceEvent $event) |
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{ |
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} |
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public function onPreRetrieveResource(RetrieveSingleResourceEvent $event) |
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{ |
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} |
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public function onPostRetrieveResource(RetrieveSingleResourceEvent $event) |
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{ |
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} |
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public function onPreRetrieveAllResources(RetrievePaginatedResourcesEvent $event) |
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{ |
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} |
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public function onPostRetrieveAllResources(RetrievePaginatedResourcesEvent $event) |
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{ |
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} |
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public function onPrePersistExistingResource(StoreExistingResourceEvent $event) |
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{ |
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} |
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public function onPostPersistExistingResource(StoreExistingResourceEvent $event) |
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{ |
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} |
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public function onPreDecodeRequestBody(DecodeEvent $event) |
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{ |
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} |
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public function onPostDecodeRequestBody(DecodeEvent $event) |
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{ |
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} |
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public function onPreModifyResource(ModifySingleResourceEvent $event) |
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{ |
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} |
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public function onPostModifyResource(ModifySingleResourceEvent $event) |
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{ |
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} |
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public function onPreCreateResource(StoreNewResourceEvent $event) |
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{ |
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} |
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public function onPostCreateResource(StoreNewResourceEvent $event) |
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{ |
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} |
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public function onPrePersistNewResource(StoreExistingResourceEvent $event) |
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{ |
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} |
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public function onPostPersistNewResource(StoreExistingResourceEvent $event) |
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{ |
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} |
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public function onPreCreateResponse(ResponseEvent $event) |
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{ |
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} |
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public function onPostCreateResponse(ResponseEvent $event) |
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{ |
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if (!($event instanceof ResponseAllEvent)) { |
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return; |
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} |
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$resource = $event->getResource(); |
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if (!($resource instanceof Pagerfanta)) { |
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if (is_array($resource)) { |
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$resource = new Pagerfanta(new ArrayAdapter($resource)); |
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} else if (is_iterable($resource)) { |
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$resource = new Pagerfanta(new ArrayAdapter(iterator_to_array($resource))); |
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} else { |
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return; |
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} |
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$event->getSearchFilterRequest()->updatePaginator($resource); |
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} |
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$response = $event->getResponse() |
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->withHeader(self::FIRST_HEADER, $this->generateUrl($event, 0)) |
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->withHeader(self::LAST_HEADER, $this->generateUrl($event, $resource->getNbPages() - 1)) |
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->withHeader(self::COUNT_HEADER, $resource->getNbResults()); |
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if ($resource->hasPreviousPage()) { |
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$response = $response->withHeader(self::PREV_HEADER, $this->generateUrl($event, $resource->getPreviousPage() - 1)); |
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} |
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if ($resource->hasNextPage()) { |
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$response = $response->withHeader(self::NEXT_HEADER, $this->generateUrl($event, $resource->getNextPage() - 1)); |
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} |
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$event->setResponse($response); |
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} |
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private function generateUrl(ResponseAllEvent $event, int $page) |
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{ |
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$filterRequest = new SearchFilterRequest($page, $event->getSearchFilterRequest()->getNumberOfItems()); |
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return $this->getApie()->getOverviewUrlForResourceClass($event->getResourceClass(), $filterRequest); |
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} |
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public function onPreCreateNormalizedData(NormalizeEvent $event) |
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{ |
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} |
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public function onPostCreateNormalizedData(NormalizeEvent $event) |
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{ |
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} |
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} |
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In the issue above, the returned value is violating the contract defined by the mentioned interface.
Let's take a look at an example: