在Django Rest Framework中动态修改序列化器字段(Dynamically modifying serializer fields in Django Rest Framework)

 我正在尝试使用django rest框架文档中描述的高级序列化程序用法。 http://django-rest-framework.org/api-guide/serializers.html#advanced-serializer-usage动态修改序列化器字段 
 
 这是我的序列化程序类： 
 
class MovieSerializer(serializers.ModelSerializer):
    moviework_work = MovieWorkSerializer(many=True) 

    def __init__(self, *args, **kwargs):
        # Don't pass the 'fields' arg up to the superclass
        dropfields = kwargs.pop('dropfields', None)

        # Instantiate the superclass normally
        super(MovieSerializer, self).__init__(*args, **kwargs)

        if dropfields:
            # Drop fields specified in the `fields` argument.
            banished = set(dropfields)
            for field_name in banished:
                self.fields.pop(field_name)
    class Meta:
        model = Movie
        fields = ('field1','field2','moviework_work')
 
 这是我的观点 
 
class MovieFromInterpreterViewSet(viewsets.ModelViewSet):
    queryset = Movie.objects.all()
    serializer_class = MovieSerializer(dropfields=('moviework_work',))
 
 我收到此错误： 
 
TypeError: 'MovieSerializer' object is not callable

I'm trying to use the Advanced serializer usage described in the django rest framework documentation. http://django-rest-framework.org/api-guide/serializers.html#advanced-serializer-usage to dynamically modifying serializer field
 
Here is my serializer class:
 
class MovieSerializer(serializers.ModelSerializer):
    moviework_work = MovieWorkSerializer(many=True) 

    def __init__(self, *args, **kwargs):
        # Don't pass the 'fields' arg up to the superclass
        dropfields = kwargs.pop('dropfields', None)

        # Instantiate the superclass normally
        super(MovieSerializer, self).__init__(*args, **kwargs)

        if dropfields:
            # Drop fields specified in the `fields` argument.
            banished = set(dropfields)
            for field_name in banished:
                self.fields.pop(field_name)
    class Meta:
        model = Movie
        fields = ('field1','field2','moviework_work')
 
Here is my viewset
 
class MovieFromInterpreterViewSet(viewsets.ModelViewSet):
    queryset = Movie.objects.all()
    serializer_class = MovieSerializer(dropfields=('moviework_work',))
 
I get this error:
 
TypeError: 'MovieSerializer' object is not callable

原文：https://stackoverflow.com/questions/18696403