序列化程序调用显示TypeError:类型为'ListSerializer'的对象不是JSON可序列化的吗? [英] serializer call is showing an TypeError: Object of type 'ListSerializer' is not JSON serializable?

问题描述

我正在尝试在Django GET请求中调用序列化程序，但它显示了一个TypeError:"ListSerializer"类型的对象不可JSON序列化如果我在某个地方出错了，请帮助我.预先感谢.

Iam trying to call a serializer in django GET request But it shows up an TypeError: Object of type 'ListSerializer' is not JSON serializable Please help me if i went wrong somewhere. Thanks in Advance.

class Member(MemberMixin, APIView):

        serializer_class = MemberSerializers

        def get(self, request, format=None):
            objects = MemberSerializers(Members.objects.all(), many=True)
            self.meta_data = "GET"
            self.module = "Member"
            self.data = objects
            if objects is None:
                self.error = "datas are not found"
                return Response(self.response_obj, status=status.HTTP_404_NOT_FOUND)
            else:
                return Response(self.response_obj, status=status.HTTP_200_OK)
            pass

序列化器代码如下:

from .models import Members


class MemberSerializers(serializers.HyperlinkedModelSerializer):
    class Meta:
        model = Members
        fields = ('username', 'fullname', 'phone','address','memberid')
        # exclude = ['']
    pass

MemberMixins代码如下:

MemberMixins code as follows:

class MemberMixin(object):
    meta_data = dict()
    data = dict()
    error = dict()

    def __init__(self):
        self.meta_data = dict()
        self.data = dict()
        self.error = dict()
        self.json_schema = None
        super().__init__()

    @property
    def response_obj(self):
        resp = dict()
        resp['meta'] = self.meta_data
        if self.error:
            resp['error'] = self.error
        else:
            resp['data'] = {
                'detail': self.data,
            }
        return resp

    pass

推荐答案

问题是您正在将序列化器本身而不是序列化的数据发送给响应.您应该将其更改为:

The problem is that you're sending the serializer itself, rather than the serialized data, to the response. You should change it to:

self.data = objects.data

但是，话说回来，大部分代码是完全不必要的，您已经绕过了Django和DRF已经为您完成的大部分工作.删除您的mixin并使用ListAPIView.

But that said, most of this code is totally unnecessary, You're bypassing most of .he things that Django and DRF do for you already. Remove your mixin and use a ListAPIView.

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