duanbarong4617 2012-10-12 12:07
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Doctrine2 LEFT JOIN异常

I've got a problem with Symfony/Doctrine2 doing SQL statement with two entites:

$qb = $this->getEntityManager()->createQueryBuilder();
    $qb->select('s')
    ->from('basecomProductionWorkflowBaseBundle:SubprocessData', 's')
    ->leftJoin('basecomProductionWorkflowBaseBundle:ReleaseDay', 'r', Expr\Join::WITH, 'r.id = s.releaseDay')
    ->where(
            $qb->expr()->andX(
                    $qb->expr()->eq('r.date', ':date'),
                    $qb->expr()->isNotNull('r.edition')
            )
    )
    ->setParameter('date', $date);

I got the following error message:

[Semantical Error] line 0, col 124 near 'r WITH r.id =': Error: Identification Variable basecomProductionWorkflowBaseBundle:ReleaseDay used in join path expression but was not defined before.

PS: Both tables have no relation to each other (it's a workaround fixing another problem). I've tested the same statement in phpmyadmin.

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  • douruyun8153 2012-10-12 12:28
    关注

    It should be:

    ->leftJoin('s.releaseDay', 'r')
    

    You could also simplify the conditions this way:

    ->where('r.date = :date')
    ->andWhere('r.edition IS NOT NULL')
    

    or:

    ->where('r.date = :date AND r.edition IS NOT NULL')
    
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