我有模特

class Event(models.Model):
    main_image = models.ImageField(upload_to='events/images',default="")
    event_name = models.CharField(max_length=100,default="")
    is_active = models.BooleanField(default=True)
    is_approved = models.BooleanField(default=True)
    created_at = models.DateTimeField(default=timezone.now)
    created_by = models.ForeignKey(User,on_delete=models.CASCADE,blank=True)

def __str__(self):
    return self.event_name

另一个是

class Favourite(models.Model):
    event = models.ForeignKey(
    Event,limit_choices_to={'is_active': True},related_name="fav_data",related_query_name="fav_data")
    user_token = models.TextField(blank=True)
    is_fav = models.BooleanField(default=True)

这是一个序列化程序类

class FavSerializer(serializers.ModelSerializer):
class Meta:
    model = Favourite
    fields = ['id','event','user_token','is_fav']

其他是

class eventSerializer(serializers.ModelSerializer):
    additional_images = additionalImagesSerializer(many=True,read_only=True)
    fav_data = FavSerializer(many=True,read_only=True)

    class Meta:
        model = Event
        fields = ['id','main_image','event_name','additional_images','fav_data']

我的查看方法是

class eventList(ListAPIView):
    serializer_class = eventSerializer
    filter_backends = [DjangoFilterBackend,filters.SearchFilter,filters.OrderingFilter]
    search_fields = ['event_name']
    filterset_fields = ['event_name']
    ordering_fields = '__all__'
    ordering = ['-id']



def get_queryset(self):
    token = self.kwargs['token']
    return Event.objects.all().filter(is_active=1,is_approved=1)

这给出结果

{
"count": 12,"next": "http://192.168.0.104:8000/event/allEvents/token1/?limit=10&offset=10","previous": null,"results": [
    {
        "id": 16,"main_image": "http://192.168.0.104:8000/media/events/images/1569666693-6th-pakistan-mega-leather-show.jpg","event_name": "6th Pakistan Mega leather show","event_tag": [
            5,6,7
        ],"additional_images": [],"fav_data": [
            {
                "id": 6,"event": 16,"user_token": "token1","is_fav": true
            },{
                "id": 7,"user_token": "token2",{
                "id": 8,"user_token": "token3",{
                "id": 9,"user_token": "token4","is_fav": true
            }
        ]
    },{
        "id": 15,"main_image": "http://192.168.0.104:8000/media/events/images/1573803406-tsx-02.jpeg","event_name": "The Stock Exchange","event_tag": [
            8
        ],"fav_data": [
            {
                "id": 10,"event": 15,{
                "id": 11,]
}

问题是它给出结果中的所有fav_data对象，而我只想要fav_data中给出了user_token的那些url。如果在该user_token中存在event，则仅显示相关的fav_data对象，否则显示空的fav_data。 以及令牌如何发送到序列化器方法并调整查询 我想要这样的结果

{
"count": 12,]
    },{
        "id": 14,"fav_data": []
    },]
  }