Django DRF使用CreateListModelMixin更改序列化程序数据

我有这个类视图,但无法修改序列化程序数据以插入更多数据(这是必需的,需要自动填充)。因为我一次创建了许多实例,所以序列化程序基于kwargs['many']=true。

知道如何向每个序列化程序数据添加另一个字段吗?

谢谢,

class ReservedServiceView(CreateListModelMixin, ModelViewSet):
queryset = ReservedService.objects.all()
serializer_class = ReservedServiceSerializer
authentication_classes = (authentication.TokenAuthentication,)

def perform_create(self, serializer):
    # Create an event that is a Reflection of the Reserved Service
    serializer_data = self.request.data

    for reserved_service in serializer_data:
        print("--------",reserved_service, flush=True)

        service_id = reserved_service['original_service']

        original_service = Service.objects.get(pk=service_id)

        calendar_event = CalendarEvent()
        calendar_event.name = original_service.name
        calendar_event.description = original_service.description
        calendar_event.date = reserved_service['date']
        calendar_event.type_id = 1
        calendar_event.start_time = reserved_service['start_time']
        calendar_event.end_time = reserved_service['end_time']
        calendar_event.location_id = original_service.location.id
        calendar_event.save()

        reserved_service['associated_event'] = calendar_event.id

    print("**********1", serializer_data)
    print("**********2", self.request.data)
    serializer.save()

基于:

class CreateListModelMixin(object):
def get_serializer(self, *args, **kwargs):
    """ if an array is passed, set serializer to many """
    if isinstance(kwargs.get('data', {}), list):
        kwargs['many'] = True
    return super(CreateListModelMixin, self).get_serializer(*args, **kwargs)

class ReservedServiceView(CreateListModelMixin, ModelViewSet): queryset = ReservedService.objects.all() serializer_class = ReservedServiceSerializer authentication_classes = (authentication.TokenAuthentication,) def create(self, request, *args, **kwargs): serializer = self.get_serializer(data=request.data) serializer.is_valid(raise_exception=True) my_data = {}.update(serializer.validated_data) # Now you can work over the my_data and add extra fields to it and save it # and instead of passing serializer.data we pass my_data to Response class headers = self.get_success_headers(serializer.data) return Response(my_data, status=status.HTTP_201_CREATED, headers=headers)