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<?php namespace Limoncello\Flute\Encoder; |
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/** |
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* Copyright 2015-2017 [email protected] |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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use Closure; |
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use Limoncello\Flute\Contracts\Encoder\EncoderInterface; |
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use Limoncello\Flute\Contracts\Models\PaginatedDataInterface; |
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use Limoncello\Flute\Contracts\Validation\JsonApiQueryValidatingParserInterface; |
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use Neomerx\JsonApi\Contracts\Document\DocumentInterface; |
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use Neomerx\JsonApi\Contracts\Encoder\Parameters\EncodingParametersInterface; |
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use Neomerx\JsonApi\Contracts\Http\Query\BaseQueryParserInterface; |
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use Psr\Http\Message\UriInterface; |
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/** |
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* @package Limoncello\Flute |
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*/ |
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class Encoder extends \Neomerx\JsonApi\Encoder\Encoder implements EncoderInterface |
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{ |
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/** |
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* @var UriInterface |
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*/ |
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private $originalUri; |
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/** |
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* @inheritdoc |
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*/ |
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public function forOriginalUri(UriInterface $uri): EncoderInterface |
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{ |
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$this->originalUri = $uri; |
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return $this; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function encodeData($data, EncodingParametersInterface $parameters = null): string |
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{ |
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$data = $this->handleRelationshipStorageAndPagingData($data); |
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return parent::encodeData($data, $parameters); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function encodeIdentifiers($data, EncodingParametersInterface $parameters = null): string |
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{ |
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$data = $this->handleRelationshipStorageAndPagingData($data); |
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return parent::encodeIdentifiers($data, $parameters); |
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} |
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/** |
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* @return UriInterface |
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*/ |
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protected function getOriginalUri(): UriInterface |
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{ |
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return $this->originalUri; |
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} |
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/** |
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* @param mixed $data |
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* |
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* @return mixed |
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*/ |
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private function handleRelationshipStorageAndPagingData($data) |
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{ |
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if ($data instanceof PaginatedDataInterface) { |
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/** @var PaginatedDataInterface $data */ |
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$this->addPagingLinksIfNeeded($data); |
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$data = $data->getData(); |
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} |
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/** @var mixed $data */ |
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return $data; |
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} |
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/** |
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* @param PaginatedDataInterface $data |
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* |
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* @return void |
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*/ |
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private function addPagingLinksIfNeeded(PaginatedDataInterface $data): void |
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{ |
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if ($data->isCollection() === true && |
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(0 < $data->getOffset() || $data->hasMoreItems() === true) && |
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$this->getOriginalUri() !== null |
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) { |
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$links = []; |
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$linkClosure = $this->createLinkClosure($data->getLimit()); |
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$prev = DocumentInterface::KEYWORD_PREV; |
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$next = DocumentInterface::KEYWORD_NEXT; |
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$data->getOffset() <= 0 ?: $links[$prev] = $linkClosure(max(0, $data->getOffset() - $data->getLimit())); |
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$data->hasMoreItems() === false ?: $links[$next] = $linkClosure($data->getOffset() + $data->getLimit()); |
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$this->withLinks($links); |
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} |
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} |
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/** |
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* @param int $pageSize |
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* |
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* @return Closure |
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*/ |
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private function createLinkClosure(int $pageSize): Closure |
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{ |
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assert($pageSize > 0); |
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parse_str($this->getOriginalUri()->getQuery(), $queryParams); |
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return function ($offset) use ($pageSize, $queryParams) { |
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$paramsWithPaging = array_merge($queryParams, [ |
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BaseQueryParserInterface::PARAM_PAGE => [ |
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JsonApiQueryValidatingParserInterface::PARAM_PAGING_OFFSET => $offset, |
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JsonApiQueryValidatingParserInterface::PARAM_PAGING_LIMIT => $pageSize, |
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], |
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]); |
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$newUri = $this->getOriginalUri()->withQuery(http_build_query($paramsWithPaging)); |
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$fullUrl = (string)$newUri; |
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$link = $this->getFactory()->createLink($fullUrl, null, true); |
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return $link; |
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}; |
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} |
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} |
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limoncello-php-dist /
flute
