1
class Person(models.Model):
name = models.CharField(max_length=128)
def __unicode__(self):
return self.name
class Group(models.Model):
name = models.CharField(max_length=128)
members = models.ManyToManyField(Person, through='Membership')
def __unicode__(self):
return self.name
class Membership(models.Model):
person = models.ForeignKey(Person)
group = models.ForeignKey(Group)
date_joined = models.DateField()
invite_reason = models.CharField(max_length=64)
reputation = models.IntegerField(default=0)
我想排序order_by模型成员身份信誉。就像这样:Django QuerySet过滤器与给定的排序列表
person_ids = Membership.objects.all().order_by('-reputation').values_list('person_id', flat=True)
persons = Person.objects.filter(id__in=person_ids) # Such as [3, 1, 2]
但结果查询集是不正确的顺序,SQL IN是一个没有秩序的搜索。
我想结果人员是一个查询集,所以我不想列出人员,并排序他们 排序函数。
我该怎么办?
谢谢,它运作良好。 – chenchiyuan