Bisakah Anda bergabung dalam subquery dengan Doctrine 2 DQL?

Anda menanyakan servicetype sebelum bergabung. Coba:

SELECT o
FROM Entity\Order o
LEFT JOIN o.serviceRequests s
  WITH s.status = :serviceStatus
LEFT JOIN s.serviceType t
WHERE o.status = :orderStatus
AND COUNT(s) = 0
AND t.final = 1