在Django Rest框架中使用serializer定制输出 [英] Custom output with serializer in Django Rest Framework

问题描述

在创建用户对象时，我想显示自定义输出，即 success = true 。

I'd like to display custom output, i.e success=true when a user object is created.

这是我现在可以正常工作的代码：

This is the code I have now which works fine:

class UserViewSet(viewsets.ViewSet):
    queryset = User.objects.all()

    def post(self, request, *args, **kwargs):
        # ... do some stuff
        return Response('some custom response')

我的问题是我还需要一些字段，例如用户名和密码。

My problem is that I also need to have some fields required, e.g username and password.

我假设我需要一个序列化器。在我的 ViewSet 中添加一个序列化程序，现在我有另一个问题。我不能得到它返回我的自定义输出。

I'm assuming I need a serializer for that. Adding a serializer to my ViewSet and now I have another problem. I can't get it to return my custom output.

class UserSerializer(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = User
        fields = ('url', 'username', 'email', 'is_staff')

    def restore_object(self, attrs, instance=None):
        #... do some stuff
        return Response('sadf') # obviously this won't work

我试图找到覆盖该方法来控制序列化程序的输出，但是找不到它。

I'm trying to find the method to override that controls the output of the serializer but I can't find it.

推荐答案

您正在寻找的方法是to_native。

The method you are looking for is to_native.

class UserSerializer(serializers.HyperlinkedModelSerializer):

    class Meta:
        model = User
        fields = ('url', 'username', 'email', 'is_staff')  


     def to_native(self, obj):
         return 'some custom response'

请注意， to_native 已重命名为 to_representation Django Rest Framework 3.0

Note that to_native is renamed to to_representation in Django Rest Framework 3.0

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