AttributeError: x object has no attribute 'GET' (DRF) - django

Question

I am trying to grab a user's list using Django Rest Framework and an Ajax request. However, I get the following error
AttributeError: 'UserListViewSet' object has no attribute 'GET'
Not sure what I am doing wrong - I am newer to DRF than vanilla Django.
Ajax call:
const showUserLists = function(map){
let userName = "Henry";
$.ajax({
type: 'GET',
url: '/api/userlist/',
data: {
'username': userName
},
success: function (data) {
data.forEach(item => {
console.log(item.list_name)
$("#userLists").append("<li class=userlist data-name=\"" + item.list_name + "\">" + item.list_name + "</li>")
})
}
});
};
urls.py:
router = DefaultRouter()
router.register('userlist', views.UserListViewSet, basename= 'userlist')
router.register('uservenue', views.UserVenueViewSet, basename= 'uservenue')
views.py
#this shows all lists for a user
class UserListViewSet(viewsets.ModelViewSet):
serializer_class = UserListSerializer
def get_queryset(request):
name = request.GET.get('username', None)
return UserList.objects.filter(user=name)
Traceback:
Traceback (most recent call last):
File "/Users/x/Desktop/Coding/anybody/avenv/lib/python3.6/site-packages/django/core/handlers/exception.py", line 47, in inner
response = get_response(request)
File "/Users/x/Desktop/Coding/anybody/avenv/lib/python3.6/site-packages/django/core/handlers/base.py", line 179, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Users/x/Desktop/Coding/anybody/avenv/lib/python3.6/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view
return view_func(*args, **kwargs)
File "/Users/x/Desktop/Coding/anybody/avenv/lib/python3.6/site-packages/rest_framework/viewsets.py", line 114, in view
return self.dispatch(request, *args, **kwargs)
File "/Users/x/Desktop/Coding/anybody/avenv/lib/python3.6/site-packages/rest_framework/views.py", line 505, in dispatch
response = self.handle_exception(exc)
File "/Users/x/Desktop/Coding/anybody/avenv/lib/python3.6/site-packages/rest_framework/views.py", line 465, in handle_exception
self.raise_uncaught_exception(exc)
File "/Users/x/Desktop/Coding/anybody/avenv/lib/python3.6/site-packages/rest_framework/views.py", line 476, in raise_uncaught_exception
raise exc
File "/Users/x/Desktop/Coding/anybody/avenv/lib/python3.6/site-packages/rest_framework/views.py", line 502, in dispatch
response = handler(request, *args, **kwargs)
File "/Users/x/Desktop/Coding/anybody/avenv/lib/python3.6/site-packages/rest_framework/mixins.py", line 38, in list
queryset = self.filter_queryset(self.get_queryset())
File "/Users/x/Desktop/Coding/anybody/anybody1/api/views.py", line 33, in get_queryset
name = request.GET.get('username', None)
AttributeError: 'UserListViewSet' object has no attribute 'GET'

Answer 1

The first parameter of get_queryset is not a request, but the UserListViewSet, so the self, you can obtain the request with self.request:
class UserListViewSet(viewsets.ModelViewSet):
serializer_class = UserListSerializer
def get_queryset(self):
name = self.request.GET.get('username', None)
return UserList.objects.filter(user=name)