Django admin外键下拉列表，带排序

Question

我在django有个模特

class NotificationMapping(models.Model):
    counterId = models.ForeignKey(CounterDetails)
    groupId = models.ForeignKey(CounterGroup)


class Meta:
    unique_together = ('counterId', 'groupId',)

模型管理员：

^{pr2}$

我需要从添加新条目的地方对外键下拉列表中的值进行排序。在

Counter Id dropdown image

Answer 1

您可以这样做：

class NotificationMappingAdmin(admin.ModelAdmin):
    list_display = ['get_counterId', 'get_groupId',]
    ordering = ('id',)

    def get_form(self, request, obj=None, **kwargs):
        form = super(NotificationMappingAdmin, self).get_form(request, obj, **kwargs)
        form.base_fields['get_counterId'].queryset = CounterDetails.objects.all().order_by('-id')
        form.base_fields['get_groupId'].queryset = CounterGroup.objects.all().order_by('-id')

        return form