python - Django url 中的多个 pks

Question

我目前正在尝试使用 Django Rest Framework 构建 API。目前我希望能够在一个 url 中拥有多个 pks，但是当我尝试时出现错误:

django.core.exceptions.ImproperlyConfigured: "^video/(?P[0-9]+)/quiz/(?P[0-9]+)/list/$" is not a valid regular expression: redefinition of group name 'pk' as group 2; was group 1 at position 31

这是我的网址:

url(r'^video/(?P<pk>[0-9]+)/quiz/(?P<pk>[0-9]+)/list/$',
        views.QuizList.as_view(),
        name='quizzes-list'),
url(r'^video/(?P<pk>[0-9]+)/quiz/(?P<pk>[0-9]+)/detail/$',
        views.QuizDetail.as_view(),
        name='quizzes-detail'),

我将对一个视频进行多个测验，并希望能够通过我的网址中的某个 pk 到达它们。

是否有一个简单的方法可以做到这一点，或者我缺少正确的方法来做到这一点？

谢谢

编辑*以下是我的观点:

class VideoList(generics.ListCreateAPIView):
    queryset = Video.objects.all()
    serializer_class = VideoSerializer


class VideoDetail(generics.RetrieveUpdateDestroyAPIView):
    queryset = Video.objects.all()
    serializer_class = VideoSerializer


# quiz
class QuizList(generics.ListCreateAPIView):
    queryset = Quizzes.objects.all()
    serializer_class = QuizSerializer


class QuizDetail(generics.RetrieveUpdateDestroyAPIView):
    queryset = Quizzes.objects.all()
    serializer_class = QuizSerializer

更新的网址:

    ###
    # Quiz urls
    ###

    url(r'^video/(?P<pk1>[0-9]+)/quiz/(?P<pk2>[0-9]+)/list/$',
        views.QuizList.as_view(),
        name='quizzes-list'),
    url(r'^video/(?P<pk1>[0-9]+)/quiz/(?P<pk2>[0-9]+)/detail/$',
        views.QuizDetail.as_view(),
        name='quizzes-detail'),

更新的 View :

class QuizList(generics.ListCreateAPIView):
    queryset = Quizzes.objects.all()
    serializer_class = QuizSerializer

    def get(self, request, *args, **kwargs):
        pk1 = kwargs.get('pk1', None)
        pk2 = kwargs.get('pk2', None)
        print(pk1)
        print(pk2)
        return self.list(request, *args, **kwargs)

新错误:

Could not resolve URL for hyperlinked relationship using view name "quizzes-list". You may have failed to include the related model in your API, or incorrectly configured the lookup_field attribute on this field.

Answer 1

您必须为命名捕获组指定唯一的名称。

url(r'^video/(?P<pk1>[0-9]+)/quiz/(?P<pk2>[0-9]+)/list/$',
    views.QuizList.as_view(),
    name='quizzes-list'),

通过访问 View 中对应的pk*值，

pk1 = kwargs.get('pk1', None)
pk2 = kwargs.get('pk2', None)

例如:

# quiz
class QuizList(generics.ListCreateAPIView):
    queryset = Quizzes.objects.all()
    serializer_class = QuizSerializer

    def get(self, *args, **kwargs):
        pk1 = kwargs.get('pk1', None)
        pk2 = kwargs.get('pk2', None)
        print pk1
        print pk2
        return super(QuizList, self).get(*args, **kwargs)