add queryset_resolver to DjangoConnectionField and fix test failures

graphene_django/fields.py

@@ -66,6 +66,20 @@ class DjangoConnectionField(ConnectionField):
             return getattr(self.model, self.on)
         else:
             return self.model._default_manager
+    
+    @classmethod
+    def resolve_queryset(cls, connection, queryset, info):
+        default_queryset = maybe_queryset(connection._meta.node.get_queryset(info))
+        if queryset:
+            return cls.merge_querysets(default_queryset, queryset)
+        return default_queryset
+    
+    def get_queryset_resolver(self):
+        return partial(
+            self.resolve_queryset,
+            self.type,
+            maybe_queryset(getattr(self.model, self.on)) if self.on else None,
+        )
 
     @classmethod
     def merge_querysets(cls, default_queryset, queryset):
@@ -106,7 +120,7 @@ class DjangoConnectionField(ConnectionField):
         cls,
         resolver,
         connection,
-        default_manager,
+        queryset_resolver,
         max_limit,
         enforce_first_or_last,
         root,
@@ -135,7 +149,13 @@ class DjangoConnectionField(ConnectionField):
                 args["last"] = min(last, max_limit)
 
         iterable = resolver(root, info, **args)
-        queryset = connection._meta.node.get_queryset(info)
+        if callable(queryset_resolver):
+            queryset = queryset_resolver(info) 
+        else:
+            assert isinstance(queryset_resolver, QuerySet), "The type {} is not a QuerySet".format(
+                type(queryset_resolver)
+            )
+            queryset = queryset_resolver
         on_resolve = partial(cls.resolve_connection, connection, queryset, args)
 
         if Promise.is_thenable(iterable):
@@ -148,7 +168,7 @@ class DjangoConnectionField(ConnectionField):
             self.connection_resolver,
             parent_resolver,
             self.type,
-            self.get_manager(),
+            self.get_queryset_resolver(),
             self.max_limit,
             self.enforce_first_or_last,
         )