Question

我正在尝试找出如何将额外的参数传递给序列化器。

我的情况是这样的：

class ActivityDataHours(generics.RetrieveUpdateAPIView):

    permission_classes = (permissions.IsAuthenticated,)

    def get(self, request, *args, **kwargs):

        pa = ProjectActivity.objects.values('project_code').distinct()

        if request.GET.get('activityCode') is not None:
            is_code_filter = False
        else:
            is_code_filter = True

        return Response(ActivityDataHoursSerializer(pa, many=True, context={'is_code_filter': is_code_filter}).data)



class ActivityDataHoursSerializer(serializers.ModelSerializer):

    activity_hours = serializers.SerializerMethodField()

    @staticmethod
    def get_activity_hours(self, project_activity):
        is_code_filter = self.context.get("is_code_filter")

        wh = WorkedHours.objects.values('project_code')

        return wh

    class Meta:
        model = Project
        fields = ['activity_hours']

答案已经可用：Pass extra arguments to Serializer Class in Django Rest Framework

但是我不明白如何使用self参数。

出现在我身上的错误是：

TypeError：get_activity_hours（）缺少1个位置参数必需：“ project_activity”

Answer 1

删除 @staticmethod 即可完成工作！

Django Rest Framework将额外的参数传递给Serializer

1 个答案: