Sql 连接时出现条令查询生成器错误
如何使用条令查询生成器编写以下内容Sql 连接时出现条令查询生成器错误,sql,symfony,doctrine-orm,Sql,Symfony,Doctrine Orm,如何使用条令查询生成器编写以下内容 SELECT registry.id , registry.couple_id, registry.gift_id, Sum(purchase.amount) as totalContribution, gift.title, gift.price FROM gift, registry LEFT JOIN purchase ON purchase.registry_id = regist
SELECT
registry.id ,
registry.couple_id,
registry.gift_id,
Sum(purchase.amount) as totalContribution,
gift.title,
gift.price
FROM
gift,
registry
LEFT JOIN
purchase ON purchase.registry_id = registry.id
WHERE
registry.gift_id = gift.id
AND registry.couple_id = 1
GROUP BY
registry.couple_id,
registry.gift_id
我试过:
$qb = $this->createQueryBuilder('g') //gift
->from('\BBB\GiftBundle\Entity\Registry', 'reg')
->select('g.id , g.title, g.description, g.price, g.imageMedium')
->addSelect('SUM(p.amount) as totalContribute')
->leftJoin('\BBB\GiftBundle\Entity\Purchase', 'p', 'ON','reg.id = p.registry')
->where('reg.gift = g.id')
->AndWhere('reg.couple = :coupleID')
->orderBy('reg.id','DESC')
->groupBy('reg.couple')
->groupBy('reg.gift')
->setParameter('coupleID', $coupleID);
但它给了我以下错误:
[语义错误]第0行,第178列,靠近'p ON reg.id=':错误:标识变量BBB\GiftBundle\Entity\Purchase在联接路径表达式中使用,但之前未定义
DQL只能联接与当前实体相关的表(在此DQL中为
Registry
)。您的注册表
实体将需要具有声明的OneToMany关系
假设此关系被称为purchases
,您将这样加入:
->leftJoin('reg.purchases', 'p')
谢谢你的回复,但我只有一个关系,我有很多购买。在这种情况下,我该怎么写呢?如果你不想有一个双向的关系,那么你需要写一封信。