0
我有2个模型,userProfile和relationship。用户可以相互关注,并通过关系模型进行关系。下面是代码:Django在查询中排除追随者
class UserProfile(models.Model):
slug = models.SlugField(max_length=200)
user = models.ForeignKey(User, unique =True)
relationships = models.ManyToManyField('self', through='Relationship',symmetrical=False,null=True, blank=True,related_name='related_to')
class Relationship(models.Model):
from_person = models.ForeignKey(UserProfile, related_name='from_people')
to_person = models.ForeignKey(UserProfile, related_name='to_people')
status = models.IntegerField(choices=RELATIONSHIP_STATUSES)
我试图让USERPROFILE的排除,然后某个用户USERPROFILE的名单列表。 这里是我的查询:
topUsersRecommendation = UserProfile.objects.exclude(id=profile.id,relationships__to_people__from_person = profile).extra(
select={
'num_group': """
SELECT COUNT(*) FROM axiom_alto_groupuser gu1
JOIN axiom_alto_groupuser gu2 on gu1.group_id = gu2.group_id
WHERE gu2.user_id=axiom_alto_userprofile.id
AND gu1.user_id = %d """ % profile.id,
},
).order_by('-num_group')
但是排除不似乎工作。 感谢您的帮助^^
是什么目的UserProfile模型中的'relation'字段? – 2013-04-09 07:29:21
对不起,我写错了,但在我的代码,这很好,谢谢你。 – 2013-04-09 08:27:23