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<?php |
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/******************************************************************************* |
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* This file is part of the GraphQL Bundle package. |
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* |
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* (c) YnloUltratech <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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******************************************************************************/ |
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namespace Ynlo\GraphQLBundle\Form\DataTransformer; |
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use Doctrine\Common\Util\ClassUtils; |
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use Doctrine\ORM\EntityManagerInterface; |
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use Symfony\Component\Form\DataTransformerInterface; |
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use Symfony\Component\Form\Exception\TransformationFailedException; |
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use Ynlo\GraphQLBundle\Definition\Registry\DefinitionManager; |
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use Ynlo\GraphQLBundle\Model\ID; |
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use Ynlo\GraphQLBundle\Model\NodeInterface; |
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/** |
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* Class IDToNodeTransformer |
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*/ |
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class IDToNodeTransformer implements DataTransformerInterface |
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{ |
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/** |
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* @var EntityManagerInterface |
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*/ |
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private $em; |
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/** |
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* @var DefinitionManager |
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*/ |
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protected $dm; |
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/** |
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* IDToNodeTransformer constructor. |
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* |
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* @param EntityManagerInterface $em |
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* @param DefinitionManager $definitionManager |
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*/ |
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public function __construct(EntityManagerInterface $em, DefinitionManager $definitionManager) |
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{ |
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$this->em = $em; |
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$this->dm = $definitionManager; |
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} |
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/** |
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* Transforms an object (issue) to a string (number). |
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* |
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* @param NodeInterface|null $node |
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* |
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* @return string |
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*/ |
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public function transform($node) |
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{ |
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if (null === $node) { |
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return ''; |
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} |
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$nodeType = $this->dm->getTypeForClass(ClassUtils::getRealClass($node)); |
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return ID::encode($nodeType, $node->getId()); |
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} |
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/** |
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* Transforms a string (id) to an object (node). |
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* |
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* @param string $globalId |
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* |
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* @return NodeInterface|null |
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* |
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* @throws TransformationFailedException if object (issue) is not found. |
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*/ |
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public function reverseTransform($globalId) |
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{ |
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if (!$globalId) { |
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return null; |
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} |
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$id = ID::createFromString($globalId); |
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if (!$id || !$id->getNodeType() || !$this->dm->hasType($id->getNodeType())) { |
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return null; |
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} |
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$node = $this->em |
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->getRepository($this->dm->getClassForType($id->getNodeType())) |
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->find($id->getDatabaseId()); |
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if (null === $node) { |
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// causes a validation error |
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// this message is not shown to the user |
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// see the invalid_message option |
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throw new TransformationFailedException( |
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sprintf( |
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'An node with id "%s" does not exist!', |
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$id |
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) |
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); |
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} |
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return $node; |
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} |
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} |
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ynloultratech /
graphql-bundle
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