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<?php |
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/* |
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* This file is part of the API Platform project. |
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* |
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* (c) Kévin Dunglas <[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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declare(strict_types=1); |
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namespace ApiPlatform\Core\Bridge\Doctrine\Orm\Util; |
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use Doctrine\ORM\Query\Expr\Join; |
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use Doctrine\ORM\QueryBuilder; |
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/** |
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* @author Vincent Chalamon <[email protected]> |
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* |
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* @internal |
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*/ |
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final class QueryBuilderHelper |
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{ |
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private function __construct() |
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{ |
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} |
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/** |
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* Adds a join to the queryBuilder if none exists. |
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*/ |
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public static function addJoinOnce(QueryBuilder $queryBuilder, QueryNameGeneratorInterface $queryNameGenerator, string $alias, string $association, string $joinType = null, string $conditionType = null, string $condition = null): string |
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{ |
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$join = self::getExistingJoin($queryBuilder, $alias, $association); |
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if (null !== $join) { |
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return $join->getAlias(); |
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} |
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$associationAlias = $queryNameGenerator->generateJoinAlias($association); |
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$query = "$alias.$association"; |
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if (Join::LEFT_JOIN === $joinType || QueryChecker::hasLeftJoin($queryBuilder)) { |
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$queryBuilder->leftJoin($query, $associationAlias, $conditionType, $condition); |
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} else { |
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$queryBuilder->innerJoin($query, $associationAlias, $conditionType, $condition); |
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} |
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return $associationAlias; |
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} |
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/** |
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* Get the existing join from queryBuilder DQL parts. |
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* |
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* @return Join|null |
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*/ |
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private static function getExistingJoin(QueryBuilder $queryBuilder, string $alias, string $association) |
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{ |
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$parts = $queryBuilder->getDQLPart('join'); |
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if (!isset($parts['o'])) { |
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return null; |
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} |
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foreach ($parts['o'] as $join) { |
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/** @var Join $join */ |
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if (sprintf('%s.%s', $alias, $association) === $join->getJoin()) { |
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return $join; |
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} |
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} |
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return null; |
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} |
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} |
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