Doctrine orm 在条令2中进行嵌套查询的主页？

我想用条令2来说明这一点：

SELECT *, 
 (SELECT action FROM operations_history
         WHERE timesheet.id = operations_history.timesheet_id
         ORDER BY operations_history.created DESC 
          LIMIT 1) as status 
FROM timesheet; 

有什么帮助吗？我想用

createQueryBuilder（）来实现它如果可能的话。谢谢
 看。