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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\Filter\Common; |
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use Doctrine\ORM\Mapping\ClassMetadataInfo; |
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use Doctrine\ORM\QueryBuilder; |
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use Ynlo\GraphQLBundle\Filter\FilterContext; |
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use Ynlo\GraphQLBundle\Filter\FilterInterface; |
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use Ynlo\GraphQLBundle\Model\Filter\NodeComparisonExpression; |
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use Ynlo\GraphQLBundle\Model\NodeInterface; |
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use Ynlo\GraphQLBundle\Type\NodeComparisonOperatorType; |
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/** |
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* Node filter to filter by related nodes |
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*/ |
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class NodeFilter implements FilterInterface |
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{ |
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/** |
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* @inheritDoc |
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*/ |
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public function __invoke(FilterContext $context, QueryBuilder $qb, $condition) |
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{ |
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if (!$condition instanceof NodeComparisonExpression) { |
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throw new \RuntimeException('Invalid filter condition'); |
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} |
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if (!$context->getField() || !$context->getField()->getName()) { |
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throw new \RuntimeException('There are not valid field related to this filter.'); |
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} |
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$entity = $context->getNode()->getClass(); |
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$metadata = $qb->getEntityManager()->getClassMetadata($entity); |
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$column = $context->getField()->getOriginName(); |
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if ($context->getField()->getOriginType() === 'ReflectionMethod') { |
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$column = $context->getField()->getName(); |
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} |
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if (!$metadata->hasAssociation($column)) { |
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throw new \RuntimeException(sprintf('There are not valid association in %s called %s.', $entity, $column)); |
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} |
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$association = $metadata->getAssociationMapping($column); |
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$alias = $qb->getRootAliases()[0]; |
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$this->applyFilter($qb, $association['type'], $alias, $column, $condition); |
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} |
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/** |
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* @param QueryBuilder $qb |
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* @param string $assocType |
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* @param string $alias |
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* @param string $column |
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* @param NodeComparisonExpression $condition |
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*/ |
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protected function applyFilter(QueryBuilder $qb, $assocType, $alias, $column, NodeComparisonExpression $condition): void |
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{ |
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$ids = []; |
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foreach ($condition->getNodes() as $node) { |
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if ($node instanceof NodeInterface) { |
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$ids[] = $node->getId(); |
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} |
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} |
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$ids = array_filter($ids); |
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switch ($assocType) { |
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case ClassMetadataInfo::MANY_TO_ONE: |
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case ClassMetadataInfo::ONE_TO_ONE: |
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case ClassMetadataInfo::ONE_TO_MANY: |
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if ($condition->getOp() === NodeComparisonOperatorType::IN) { |
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if (empty($ids)) { |
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$qb->andWhere($qb->expr()->isNull("{$alias}.{$column}")); |
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} else { |
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$qb->andWhere($qb->expr()->in("{$alias}.{$column}", $ids)); |
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} |
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} else { |
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if (empty($ids)) { |
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$qb->andWhere($qb->expr()->isNotNull("{$alias}.{$column}")); |
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} else { |
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$qb->andWhere($qb->expr()->notIn("{$alias}.{$column}", $ids)); |
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} |
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} |
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break; |
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case ClassMetadataInfo::MANY_TO_MANY: |
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$paramName = sprintf('%s_ids_%s', $column, mt_rand()); |
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if ($condition->getOp() === NodeComparisonOperatorType::IN) { |
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$qb->andWhere(sprintf(':%s MEMBER OF %s.%s', $paramName, $alias, $column)) |
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->setParameter($paramName, $ids); |
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} else { |
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$qb->andWhere(sprintf(':%s NOT MEMBER OF %s.%s', $paramName, $alias, $column)) |
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->setParameter($paramName, $ids); |
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} |
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break; |
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} |
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} |
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} |
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