Question

这是我的存储库函数的代码：

public function findLatest($count, $page)
{
    return $this->getEntityManager()
        ->createQuery
        ('
            SELECT
              n.id, n.createdAt, n.title, n.titleCanonical, n.entry, n.movie,
              c.title as category,
              i as images,
              COUNT(com.id) as numberOfComments
            FROM WisJaCoreBundle:News n
            JOIN n.category c
            LEFT JOIN WisJaCoreBundle:Image i
              WITH i.target = \'Article\' AND i.targetId = n.id AND n.movie IS NULL
            LEFT JOIN WisJaCoreBundle:Comment com
              WITH com.target = \'Article\' AND com.targetId = n.id
            ORDER BY n.createdAt DESC
        ')
        ->setFirstResult($page * $count - $count)
        ->setMaxResults($count)
        ->getResult();
}

在表格新闻中我有一些记录，但我只得到一个......我发现了问题，这是这个片段

COUNT(com.id) as numberOfComments

当我将其替换为例如：

n.id as numberOfComments

然后一切顺利，我得到了所有结果。为什么“COUNT”会破坏我的查询？

EDIT ------------------------------------------

我仍然不知道为什么这个构造不起作用，但问题是在同一个SQL中，而只是“COUNT”放置了这样的嵌套查询：

SELECT
  n.id, n.createdAt, n.title, n.titleCanonical, n.entry, n.movie,
  c.title as category,
  i as images,
  (SELECT COUNT(com.id) FROM WisJaCoreBundle:Comment com WHERE com.target = \'Article\' AND com.targetId = n.id) as numberOfComments
FROM WisJaCoreBundle:News n
JOIN n.category c
LEFT JOIN WisJaCoreBundle:Image i
  WITH i.target = \'Article\' AND i.targetId = n.id AND n.movie IS NULL
ORDER BY n.createdAt DESC

所以，问题解决了：）

Doctrine不返回所有结果 - DQL，JOIN

0 个答案: