doctrine2嵌套联接查询构建器

Question

我有以下工作的MySQL查询：

select * from (categories as C
  JOIN category_details as CD ON C.current_category_detail_id = CD.id
  LEFT JOIN (categorized_items as CI 
             JOIN item_details as ID ON CI.item_detail_id = ID.id
             JOIN items as I ON I.current_item_detail_id = ID.id)
  ON CD.id = CI.category_detail_id)                                      
WHERE (CI.current = 1 OR CI.id is NULL)

现在我在Doctrine2 DQL或QueryBuilder中需要它。 我已经为所有实体设置了OneToMany和ManyToOne批注，但是我需要一些东西来使嵌套联接起作用。

有什么想法吗？