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<?php |
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declare(strict_types = 1); |
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namespace Mikemirten\Component\JsonApi\Mapper\Handler; |
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use Mikemirten\Component\JsonApi\Document\AbstractRelationship; |
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use Mikemirten\Component\JsonApi\Document\IdentifierCollectionRelationship; |
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use Mikemirten\Component\JsonApi\Document\NoDataRelationship; |
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use Mikemirten\Component\JsonApi\Document\ResourceIdentifierObject; |
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use Mikemirten\Component\JsonApi\Document\ResourceObject; |
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use Mikemirten\Component\JsonApi\Document\SingleIdentifierRelationship; |
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use Mikemirten\Component\JsonApi\Mapper\Definition\Relationship as RelationshipDefinition; |
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use Mikemirten\Component\JsonApi\Mapper\Handler\LinkHandler\LinkHandlerInterface; |
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use Mikemirten\Component\JsonApi\Mapper\MappingContext; |
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/** |
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* Handler of relationships |
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* |
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* @package Mikemirten\Component\JsonApi\Mapper\Handler |
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*/ |
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class RelationshipHandler implements HandlerInterface |
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{ |
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/** |
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* Links' handler |
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* |
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* @var LinkHandlerInterface |
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*/ |
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protected $linkHandler; |
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/** |
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* RelationshipHandler constructor. |
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* |
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* @param LinkHandlerInterface $linkHandler |
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*/ |
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public function __construct(LinkHandlerInterface $linkHandler) |
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{ |
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$this->linkHandler = $linkHandler; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function toResource($object, ResourceObject $resource, MappingContext $context) |
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{ |
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$definitions = $context->getDefinition()->getRelationships(); |
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foreach ($definitions as $definition) |
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{ |
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$relationship = $this->createRelationship($object, $definition, $context); |
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$this->linkHandler->handleLinks($object, $definition, $relationship); |
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$resource->setRelationship($definition->getName(), $relationship); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function fromResource($object, ResourceObject $resource, MappingContext $context) |
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{ |
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// Do nothing |
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} |
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/** |
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* Create relationship contains a single resource-identifier |
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* |
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* @param mixed $object |
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* @param RelationshipDefinition $definition |
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* @param MappingContext $context |
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* @return AbstractRelationship |
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*/ |
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protected function createRelationship($object, RelationshipDefinition $definition, MappingContext $context): AbstractRelationship |
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{ |
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if (! $definition->isDataIncluded()) { |
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return new NoDataRelationship(); |
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} |
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return $definition->isCollection() |
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? $this->createIdentifierCollectionRelationship($object, $definition, $context) |
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: $this->createSingleIdentifierRelationship($object, $definition, $context); |
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} |
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/** |
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* Create relationship contains a single resource-identifier |
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* |
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* @param mixed $object |
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* @param RelationshipDefinition $definition |
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* @param MappingContext $context |
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* @return AbstractRelationship ( NoDataRelationship | NoDataRelationship ) |
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*/ |
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protected function createSingleIdentifierRelationship($object, RelationshipDefinition $definition, MappingContext $context): AbstractRelationship |
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{ |
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$relatedObject = $object->{$definition->getGetter()}(); |
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if ($relatedObject === null) { |
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return new NoDataRelationship(); |
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} |
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$resource = $context->getMapper()->toResourceIdentifier($relatedObject); |
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return new SingleIdentifierRelationship($resource); |
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} |
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/** |
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* Create relationship contains a collection of resource-identifiers |
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* |
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* @param mixed $object |
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* @param RelationshipDefinition $definition |
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* @param MappingContext $context |
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* @return IdentifierCollectionRelationship |
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*/ |
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protected function createIdentifierCollectionRelationship($object, RelationshipDefinition $definition, MappingContext $context): IdentifierCollectionRelationship |
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{ |
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$relationship = new IdentifierCollectionRelationship(); |
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$collection = $object->{$definition->getGetter()}(); |
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$dataLimit = $definition->getDataLimit(); |
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if ($dataLimit > 0) { |
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$collection = new \LimitIterator($collection, 0, $dataLimit); |
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} |
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$mapper = $context->getMapper(); |
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foreach ($collection as $relatedObject) |
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{ |
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$resource = $mapper->toResourceIdentifier($relatedObject); |
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$relationship->addIdentifier($resource); |
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} |
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return $relationship; |
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} |
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} |
mikemirten /
JsonApi
