与多义关系中的Doctrine QueryBuilder不在查询中 [英] NOT IN query with Doctrine QueryBuilder in a Many to Many relation

问题描述

在我的Symfony2项目中，我有两个实体联系人"和设置"，并且具有多对多关系:

In my Symfony2 project, I have two entities "contact" and "settings", with a many to many relationship :

/**
 * @ORM\ManyToMany(targetEntity="AppBundle\Entity\Settings", cascade={"persist"})
 * @ORM\JoinColumn(nullable=true)
 */
private $settings;

实体设置具有属性"parametre"，它是一个简单的字符串.

Entity settings have a property "parametre", which is a simple string.

现在，我想获取所有没有任何设置的联系人，其中"parametre"是"THEMES".

Now I want to get all the contacts that DON'T have any settings which "parametre" is "THEMES".

我可以在SQL中通过类似这样的查询来做到这一点:

I can do that in SQL with a query like :

SELECT DISTINCT(c.id) FROM contact c WHERE c.id
NOT IN (SELECT cs.contact_id FROM contact_settings cs
INNER JOIN Settings s ON s.id = cs.settings_id
WHERE s.parametre = "THEMES")

但是我不知道如何使用Doctrine的查询构建器来做到这一点. 到目前为止，这是我尝试过的:

But I can't figure out how to do it with Doctrine's query builder. Here's what I've tried so far :

$query = $this->createQueryBuilder('c')
    ->join('c.settings', 's');

$qb2 = $qb;

$qb2->select('s2')
    ->from('AppBundle\Entity\Settings', 's')
    ->where('s2.parametre = :parametre');

$query->where(($qb->expr()->notIn('s', $qb2->getDQL())));
$query->setParameter('parametre', 'THEMES');
$result = $query->getQuery()->getResult();

这不会返回任何结果.

谢谢！

推荐答案

您可以尝试执行以下操作:

You can try something like this:

$subQueryBuilder = $this->getEntityManager()->createQueryBuilder();
$subQuery = $subQueryBuilder
    ->select(['cs.id'])
    ->from('AcmeDemoBundle:Contact', 'cs')
    ->innerJoin('cs.settings', 's')
    ->where('s.parameter = :parameter')
    ->setParameter('parameter', 'THEMES')
    ->getQuery()
    ->getArrayResult()
;

$queryBuilder = $this->getEntityManager()->createQueryBuilder();
$query = $queryBuilder
    ->select(['c'])
    ->from('AcmeDemoBundle:Contact', 'c')
    ->where($queryBuilder->expr()->notIn('c.id', ':subQuery'))
    ->setParameter('subQuery', $subQuery)
    ->getQuery()
;

$result = $query->getResult();

这只是您的问题的一个示例.我无法提供完整的示例，因为我不知道您实体的结构...

This is just an example to your question. I can't provide complete example as I don't know the structure of your entities...

这篇关于与多义关系中的Doctrine QueryBuilder不在查询中的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！