Question

如何订购串联的查询集？我可以进行for循环并打印每个日期

for r in requests:
    print(r.game.date)

但是我不能订购查询集。

views.py

class Games(TemplateView):
    template_name = ...

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        user = CustomUser.objects.get(pk=self.request.user.pk)
        team = Team.objects.get(team=user)
        requests_single = Request.objects.filter(content_type=ContentType.objects.get_for_model(CustomUser)).filter(object_id=self.request.user.pk)
        requests_team = Request.objects.filter(content_type=ContentType.objects.get_for_model(Team)).filter(object_id=team.pk)
        requests = requests_single | requests_team
        requests.order_by('-game.date')
        context['requests'] = request
        return context

model.py

class Forderung(models.Model):
    game = models.ForeignKey(Spiel, on_delete=models.CASCADE, null=True)
    content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
    object_id = models.PositiveIntegerField()
    content_object = GenericForeignKey('content_type', 'object_id')

Answer 1

order_by不会对查询集进行适当排序，而是返回一个新的查询集。试试：

requests = requests.order_by('-game.date')

Answer 2

您需要使用双下划线语法表示联接。

requests = requests.order_by('-game__date')

Django Order已合并查询集

2 个答案: