Django OrderingFilter 没有属性filter_queryset

我一直在努力让OrderingFilter人go 上班.从django-睡觉-framework页面中的示例来看，似乎应该相当简单:

class UserListView(generics.ListAPIView):
    queryset = User.objects.all()
    serializer_class = UserSerializer
    filter_backends = (filters.OrderingFilter,)
    ordering_fields = ('username', 'email')

然而，当我试图做到这一点时:

from django_filters.rest_framework import DjangoFilterBackend, FilterSet, OrderingFilter
...


class ListingViewSet(viewsets.ModelViewSet):
    queryset = Listing.objects.all()
    serializer_class = ListingSerializer
    filter_backends = (DjangoFilterBackend, OrderingFilter,)
    filter_class = ListFilter
    ordering_fields = ('price', 'views')
    ordering = ('price',)

我得到一个关于OrderingFilter没有filter_queryset属性的错误:

ERROR 2016-11-13 03:14:57,304 log 25913 123145338523648 (<class 'AttributeError'>, AttributeError("'OrderingFilter' object has no attribute 'filter_queryset'",), <traceback object at 0x106ef48c8>)
Traceback (most recent call last):
  File "/.../lib/python3.5/site-packages/rest_framework/views.py", line 474, in dispatch
    response = handler(request, *args, **kwargs)
  File "/.../lib/python3.5/site-packages/rest_framework/mixins.py", line 40, in list
    queryset = self.filter_queryset(self.get_queryset())
  File "/.../lib/python3.5/site-packages/rest_framework/generics.py", line 151, in filter_queryset
    queryset = backend().filter_queryset(self.request, queryset, self)
AttributeError: 'OrderingFilter' object has no attribute 'filter_queryset'

进入OrderingFilter，它确实没有filter_queryset方法，但视图期望它:

# in GenericAPIView(views.APIView)
def filter_queryset(self, queryset):
    """
    Given a queryset, filter it with whichever filter backend is in use.

    You are unlikely to want to override this method, although you may need
    to call it either from a list view, or from a custom `get_object`
    method if you want to apply the configured filtering backend to the
    default queryset.
    """
    for backend in list(self.filter_backends):
        queryset = backend().filter_queryset(self.request, queryset, self)
    return queryset

I have tried the various solutions in django rest framework queryset doesn't order, but it seems they do not work, either. I tried updating the most promising answer:

class YOUR_VIEW_SET(viewsets.ModelViewSet):
    #your code here
    ordering_filter = OrderingFilter()

    def filter_queryset(self, queryset):
        queryset = super(YOUR_VIEW_SET, self).filter_queryset(queryset)
        return self.ordering_filter.filter_queryset(self.request, queryset, self)

由于OrderingFilter没有filter_queryset方法，我将filter_queryset更改为filter(它确实有)，但此调用似乎与OrderingFilter中filter的签名冲突:

# In OrderingFilter(BaseCSVFilter, ChoiceFilter)
def filter(self, qs, value):
    if value in EMPTY_VALUES:
        return qs

    ordering = [self.get_ordering_value(param) for param in value]
    return qs.order_by(*ordering)

我不知道函数声明中的value应该是什么，所以我可以try 将其传递给函数，但似乎qs指的是queryset，所以我假设它应该是第一个参数，而不是第二个参数，但我也不完全确定value应该是什么；这似乎不是要求，因为它不可接受.

如果我错过了一些明显的东西，我将非常感激任何提示、 idea 或变通方法，如果我错过了一些明显的东西，我将深表歉意；我对Django并不是非常熟悉.