[英]How to create an inner join with Doctrine?
我的數據庫中有3個表:
我想在SQL上執行以下查詢:
SELECT a.id, a.title, u.id, u.name
FROM association AS a
INNER JOIN association_user AS au
ON au.association_id = a.id
INNER JOIN user AS u
ON u.id = au.user_id
WHERE au.user_id = ID
目前,我有這個:
return $this->createQueryBuilder('a')
->join('association.users', 'u')
->addSelect('a')
->join('user.id', 'u.id')
->addSelect('u')
->where("au.user_id = :id")
->setParameter('id', $userid)
->getQuery()
->getResult()
;
但這不起作用:
[Semantical Error] line 0, col 73 near '.users u INNER': Error: Identification Variable association used in join path expression but was not defined before.
我的querybuilder有什么問題?
工作代碼
我已將查詢更改為:
'query_builder' => function(EntityRepository $er) {
return $er->createQueryBuilder('a')
->innerJoin('a.users','u')
->where('u.id = :id')->setParameter('id', $this->getUser()->getId());
},
如果您的實體映射正確,則querybuilder將自動加入映射中指定的列,您無需在此處再次指定它們:
$qb->select("a,u")
->from('MyBundle\Association','a')
->innerJoin('a.users','u')
->where('u.id = :id')
->setParameter('id',$userid);
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