Question

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)

我想按照模型会员资格对人的order_by声誉进行排序。就像这样：

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QuerySet的顺序不正确， SQL IN 是无订单搜索。

我想结果人是一个查询集，所以我不想列出人并订购它们排序函数。

我该怎么办？

Answer 1

Person.objects.order_by（ ' - membership__reputation'）

Django QuerySet使用给定的排序列表进行过滤

1 个答案: