如何在序列化程序中为 DRF 中的令牌认证用户获取用户 ID

Question

How can I get the user from token in serializer? I am getting the id in views but I need in serializer for applying a filter in queryset of nested queryset.

views.py

class UserListAPIView(generics.ListAPIView):
    permission_classes = (permissions.IsAuthenticated, jwtPermissions.IsSSOAdminOrReadOnly,)
    queryset = userModels.User.objects.all()
    serializer_class = serializers.UserSerializers
    
    def get_queryset(self):
        return self.queryset.filter(id=self.request.user.id) 

serializers.py

class UserSerializers(serializers.ModelSerializer):
    class Meta:
        model = userModel.User
        fields = ('id','email','name','contact_no','address','is_active','solutions')

    def to_representation(self, instance):
        rep = super().to_representation(instance)
        rep['component'] = ComponentUserSerializers(instance.component.all(), many=True).data
        return rep

class ComponentUserSerializers(serializers.ModelSerializer):
    user_devices = serializers.SerializerMethodField()

    def get_user_devices(self, obj):
       #self.context['request'].user.id <-- getting null
        user_devices_queryset = sensorModel.UserSensorDevice.objects.filter(sensor_type=obj.id, user = self.context['request'].user.id)
        user_devices_serializer = sensorSerializers.UserSensorDeviceSerializer(user_devices_queryset, many=True)
        return user_devices_serializer.data

    class Meta:
        model = coreModel.Component
        fields = ('id','comp_code','part_no', 'user_devices')

I need to apply a filter in ComponentUserSerializer in get_user_devices API. And I am not getting user_id of the token authenticated user.

Answer 1

I think this might work

request = self.context.get('request', None)
if request.user is not None:
   print(request.user)
   print(request.user.id)