在将数据传递给序列化程序 django api 时添加额外的上下文

Ris*_*dey 4 python api django serialization django-rest-framework

我试图在我的表中添加一个额外的字段 auth_token ,request.data但它给出了错误。错误是—— data['auth_token_id'] = auth_token TypeError: list indices must be integers or slices, not str

我的代码如下:

序列化程序.py

class AppSerializer(serializers.ModelSerializer):

  class Meta:
     model = ThirdPartyApps
     fields = ('app_name', 'package_name', 'auth_token_id')
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视图.py

@api_view(['POST'])
def add_apps(request):
    data = request.data
    auth_token = request.META.get('HTTP_AUTHTOKEN', '')
    data['auth_token_id'] = auth_token
    serializer = AppSerializer(data=data, many=True)
    if serializer.is_valid():
        serializer.save()
        return Response(serializer.data, status=status.HTTP_200_OK)
    else:
        return Response(serializer.errors)
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我正在寻找一种通过序列化程序传递额外数据的方法。我只想添加auth_token到我的模型中,request.data但它给出了这个错误 -

data['auth_token_id'] = auth_token TypeError: list indices must be integers or slices, not str

小智 11

您应该将其作为上下文传递,如下所示:

序列化程序.py

class AppSerializer(serializers.ModelSerializer):
    auth_token_id = serializers.SerializerMethodField()
    def get_auth_token_id(self, obj):
        if "auth_token_id" in self.context:
            return self.context["auth_token_id"]
        return None
    class Meta:
         model = ThirdPartyApps
         fields = ('app_name', 'package_name', 'auth_token_id')
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视图.py

@api_view(['POST'])
def add_apps(request):
    data = request.data
    auth_token = request.META.get('HTTP_AUTHTOKEN', '')
    serializer = AppSerializer(data=data, many=True, context = {"auth_token_id": auth_token})
    if serializer.is_valid():
        serializer.save()
        return Response(serializer.data, status=status.HTTP_200_OK)
    else:
        return Response(serializer.errors)
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