语义错误，Symfony DQL

Question

我有一个使用 MySQL 可以正常执行的查询：

SELECT *
FROM td_user u
JOIN td_ranking ranking ON ranking.user_id = u.id
JOIN (
 SELECT x.user_id,
 MAX(x.id) AS default_id
 FROM td_ranking x
 GROUP BY x.user_id
) y 
ON y.user_id = ranking.user_id
AND y.default_id  = ranking.id

我尝试在 DQL 中转换它以便在 Symfony 中运行它：

$query = $this->_em->createQuery('
  SELECT u.*,ranking.* 
  FROM UserBundle:User u 
  JOIN UserBundle:Ranking ranking 
  WITH ranking.user_id = u.id 
  JOIN (
    SELECT x.user_id, MAX(x.id) AS default_id 
    FROM UserBundle:Ranking x 
    GROUP BY x.user_id
  ) y 
  ON y.user_id = ranking.user_id 
  AND y.default_id  = ranking.id' 
);
$results = $query->getResult();

我有这个错误：

[Semantical Error] line 0, col 113 near '(SELECT x.user_id,': Error: Class '(' is not defined.

请问您有什么想法吗？谢谢！

Answer 1

使用原生查询

$rsm = new ResultSetMapping();
$sql = " 
    SELECT *
FROM td_user u
JOIN td_ranking ranking ON ranking.user_id = u.id
JOIN (
 SELECT x.user_id,
 MAX(x.id) AS default_id
 FROM td_ranking x
 GROUP BY x.user_id
) y 
ON y.user_id = ranking.user_id
AND y.default_id  = ranking.id
";

$result = $this->getEntityManager()->createNativeQuery($sql, $rsm)->getResult();