Django rest 框架将 dict 添加到序列化程序 [英] Django rest framework add dict to serializer

问题描述

这是我的serializers.py:

This is my serializers.py:

class SysUserSerializer(serializers.ModelSerializer):
    pk = serializers.IntegerField(read_only=True)
    login_id = serializers.CharField(required=False)
    name = serializers.CharField(required=False)

    class Meta:
        model = SysUser
        fields = ('pk','login_id','name')

这是我的views.py:

This is my views.py:

class GetUserDetail(APIView):
    def get(self, request, format=None):
        sysuser = SysUser.objects.get(id=1)
        serializer = SysUserSerializer(sysuser)
        serializer.data['gender'] = 'male' # i don't think this line is working
        return Response(serializer.data, status=200)

但我得到了这样的回应:

But i get this response:

{"pk": 1, "login_id": "john77", "name": "John"}

我想要这样的回复:

{"pk": 1, "login_id": "john77", "name": "John", "gender": "male"}

怎么做?可以这样做吗?

How it can be done? is it possible to do so?

推荐答案

这里的问题是 serializer.data 不是实例参数，而是 property 返回它.因此，您可以通过将 serializer.data 分配给变量来解决此问题.

Problem here that serializer.data is not instance argument, but property which returns it. So you can fix this by assigning serializer.data to variable.

class GetUserDetail(APIView):
    def get(self, request, format=None):
        sysuser = SysUser.objects.get(id=1)
        serializer = SysUserSerializer(sysuser)
        data = serializer.data
        data['gender'] = 'male'
        return Response(data, status=200)

您也可以在 validate 序列化器的方法

Also you can assign data to serializer.data in validate method of serializer

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