嵌套Serializ的Django REST框架限制

Question

我有以下型号.py：

class Category(models.Model):
    created = models.DateTimeField(auto_now_add=True)
    name = models.CharField(max_length=100, blank=False)

class Movie(models.Model):

    created = models.DateTimeField(auto_now_add=True)
    name = models.CharField(max_length=100, blank=False)
    category = models.ForeignKey(Category,related_name='movies',
                               on_delete=models.CASCADE,
                               blank=True,
                               null=True)

如您所见，这两个类之间存在ForeignKey关系。一个类别可以有多部电影，但一部电影只属于一个类别。 我的序列化程序.py如下所示：

class CategorySerializer(serializers.HyperlinkedModelSerializer):

    movies = MoviesSerializer(many=True, read_only=True)
    class Meta:
        model = Category
        fields = ('url','id','created','name', 'movies')

class MovieSerializer(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = Movie
        fields = ('url','id','created','name', 'category')

所以，我有嵌套的序列化程序。当我反序列化类别的内容时，它也会像我期望的那样显示JSON输出中的嵌套电影。 但它向我显示了JSON输出中属于特定类别的所有电影。我怎么限制这个号码？你知道吗

我尝试了this解决方案，但由于我使用序列化程序.HyperlinkedModelSerializer。在提供的解决方案中，他们使用序列化程序.ModelSerializer。我在尝试这个解决方案时遇到了这个错误：

AssertionError: `HyperlinkedIdentityField` requires the request in the serializer context. Add `context={'request': request}` when instantiating the serializer.

更新： 这是我的视图.py：

class AllCategories(generics.ListAPIView):
    '''
        This class class-based view lists
        all the categories created 
    '''
    serializer_class = CategorySerializer
    queryset = Category.objects.all()

    def list(self, request, *args, **kwargs):
        '''
            standard method that we override just to
            put the string 'allCategories' before the dataset
        '''
        queryset = self.filter_queryset(self.get_queryset())
        page = self.paginate_queryset(queryset)

        if page is not None:
            serializer = self.get_serializer(page, many=True)
            return self.get_paginated_response(serializer.data)

        serializer = self.get_serializer(queryset, many=True)

        # the only part we change
        return Response({'allCategories': serializer.data})


class AllMovies(generics.ListAPIView):
    '''
        This class lists all the movies
    '''
    # define the serializer class 
    serializer_class = MovieSerializer
    queryset = Movie.objects.all()

    def list(self, request, *args, **kwargs):
        '''
            standard method that we override just to
            put the string 'allMoviesOfUser' before the dataset
        '''
        queryset = self.filter_queryset(self.get_queryset())
        page = self.paginate_queryset(queryset)

        if page is not None:
            serializer = self.get_serializer(page, many=True)
            return self.get_paginated_response(serializer.data)

        serializer = self.get_serializer(queryset, many=True)

        # the only part we change
        return Response({'allMoviesOfUser': serializer.data})