使用 AND 和 OR 的查询构建器

Question

我在 Symfony 3.4 flex 工作，我需要像这样做一个查询生成器：

所有带有“published”的媒体为 True AND media 是 TYPE OF :type AND ((condition 1) OR (condition 2) OR (condition 3)) with a symfony doctrine query builder .这 2 个条件已经成立（已发布并且是 :instance 的实例）：

 $queryBuilder = $this->createQueryBuilder('m')
        ->chere('m.published = :published')
        ->andWhere('m INSTANCE OF :instance');

/* 
WHERE m.published = true AND m INSTANCE OF :instance

AND (
    //    ('m.startDate <= :today AND m.endDate >= :today')
    // OR ('m.startDate IS NULL AND m.endDate >= :today')
    // OR ('m.startDate IS NULL AND m.endDate IS NULL')
    // OR ('m.startDate <= :today AND m.endDate IS NULL')
*/

当我尝试类似的操作时：

$queryBuilder->andWhere($queryBuilder->expr()->andX(
            $queryBuilder->expr()->lte('m.startDate', ':today'),
            $queryBuilder->expr()->gte('m.endDate', ':today'))
   );

但它不起作用 return 像 :

WHERE (
    (m.published = 1 AND m.type IN (:type)) // I already needed this in all cond
    AND m.start_date <= :today AND m.end_date >= :today // cond 1
)

    OR (m.start_date IS NULL :today AND m.end_date IS NULL) // cond 2
    OR ... // cond 3

所以我的 ((m.published = 1 AND m.type IN (:type))) 条件需要在所有条件下不仅是第一个

你有什么想法吗？

谢谢。

Answer 1

你可以这样做：

 $queryBuilder = $this->createQueryBuilder('m')
        ->where("((m.published = true AND m INSTANCE OF :instance) AND
                      (
                          (m.startDate <= :today AND m.endDate >= :today) OR
                          (m.startDate IS NULL AND m.endDate >= :today) OR
                          (m.startDate IS NULL AND m.endDate IS NULL) OR
                          (m.startDate <= :today AND m.endDate IS NULL)
                      )
                 )"
               );

Answer 2

据你所知，使用 DQL，它会是这样的：

//Important to have it initialized alone so you can use it for expressions
$qb=$this->createQueryBuilder('m');

$qb->andWhere($qb->expr()->andX(
    "m.published=1",
    "m INSTANCE OF :instance",
    $qb->expr()->orX(
        $qb->expr()->andX("m.startDate <= :today", "m.endDate >= :today"),
        $qb->expr()->andX("m.startDate IS NULL", "m.endDate >= :today"),
        $qb->expr()->andX("m.startDate IS NULL", "m.endDate IS NULL"),
        $qb->expr()->andX("m.startDate <= :today", "m.endDate IS NULL")
    )
))
->setParameters(array(
    'instance'=>$instance,
    'today'=>$today,
))
->getQuery()
->execute();

它将为您提供以下 DQL 查询：

SELECT m
FROM AppBundle\Entity\Media m
WHERE m.published=1
    AND m INSTANCE OF :instance
    AND ((m.startDate <= :today AND m.endDate >= :today)
        OR (m.startDate IS NULL AND m.endDate >= :today)
        OR (m.startDate IS NULL AND m.endDate IS NULL)
        OR (m.startDate <= :today AND m.endDate IS NULL))

一些小技巧：

永远不要使用 where() 或 orWhere，它总有一天会给你带来麻烦
您可以阅读更多相关信息 here

始终对您的查询使用双引号。 Doctrine 只接受查询中字符串的单引号

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