Question

在此之前，我尝试了搜索功能，但没有找到关于这个的线程。继承人我的问题。我正在使用具有多对多关系的doctrine查询构建器。

$qb = $this->getDoctrine()->getRepository('SOMEBUNDLE:INSERTION')->createQueryBuilder('insertion');
      $qb->select('
        insertion.id, 
        insertion.title, 
        insertion.content, 
        insertion.insertionpicture,
        insertion.timestamp,
        insertion.isanon,
        user.firstname as user_firstname, 
        user.lastname as user_lastname,
        user.picture as user_picture,
        supertag.name as supertag_name
        ');
      $qb->from('SOMEBUNDLE:USER', 'user');
      $qb->from('SOMEBUNDLE:SUPERTAG', 'supertag');
      $qb->from('SOMEBUNDLE:TAG', 'tag');
      $qb->andWhere('insertion.user = user.id');
      $qb->andWhere('insertion.supertag = supertag.id');
      $qb->andWhere("insertion.tag = :tag");
      $qb->setParameters('tag', $tags);
      return new JsonResponse($qb->getQuery()->getArrayResult());

Insertion.php

   /**
     * @var \Doctrine\Common\Collections\Collection
     */
    private $tag;

这里的“andwhere（insertion.tag =：tag）”我的参数是一个数组。我得到了一个无效的路径表达式异常，因为我不知道如何设置Doctrine集合的参数。

THX

Answer 1

尝试替换它：

$qb->andWhere("insertion.tag = :tag");

由此：

$qb->andWhere(
    $qb->expr()->in('insertion.tag', $tags)
);

无论如何，您可以通过将调用链接到查询构建器来减少代码：

$qb = $this->getDoctrine()
    ->getRepository('SOMEBUNDLE:INSERTION')
    ->createQueryBuilder('insertion');

$query = $qb
    # select only some columns from the tables
    ->select('partial insertion.{id, title, content, '.'
        insertionpicture, timestamp, isanon}, '.
        'partial user.{id, firstname, lastname, picture}, '.
        'partial supertag.{id, name} '
    )
    # if the Doctrine association is correct, joins are easy
    ->leftJoin('insertion.user', 'user')
    ->leftJoin('insertion.supertag', 'supertag')
    ->leftJoin('insertion.tag', 'tag')
    ->andWhere(
        $qb->expr()->in('tag.name', $tags)
    );

return new JsonResponse($query->getQuery()->getArrayResult());

symfony2 doctrine多对多查询

1 个答案: