本文实例讲述了Symfony2联合查询实现方法。分享给大家供大家参考，具体如下：
1.yml文件
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Acme\\MspadminBundle\\Entity\\MspArticle:
type: entity
table: msp_article
manyToOne:
Channel:
targetEntity: MspChannel
inversedBy: Articles
joinColumn:
name: channel_id
referencedColumnName: channel_id
User:
targetEntity: MspUser
inversedBy: Userone
joinColumn:
name: user_id
referencedColumnName: user_id
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Acme\\MspadminBundle\\Entity\\MspChannel:
type: entity
table: msp_channel
oneToMany:
Articles:
targetEntity: MspArticle
mappedBy: Channel
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Acme\\MspadminBundle\\Entity\\MspUser:
type: entity
table: msp_user
oneToMany:
Userone:
targetEntity: MspArticle
mappedBy: User
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2.查询代码：
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$sql="SELECT a.id,a.checkStatus,a.title,a.releaseSysDate,
a.visitTotal,u.userName ,n.name FROM AcmeMspadminBundle:MspArticle a
JOIN a.User u JOIN a.Channel n";
$query = $emt->createQuery($sql." Where a.checkStatus = 0 ");
$mspArtile = $query->getResult();
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