Support foriegn key connections running async

Author: jaw9c

graphene_django/converter.py

@@ -1,10 +1,12 @@
 from collections import OrderedDict
 from functools import singledispatch, wraps
+from asyncio import get_running_loop
 
 from django.db import models
 from django.utils.encoding import force_str
 from django.utils.functional import Promise
 from django.utils.module_loading import import_string
+from asgiref.sync import sync_to_async
 
 from graphene import (
     ID,
@@ -323,6 +325,13 @@ def wrap_resolve(self, parent_resolver):
                 """
                 resolver = super().wrap_resolve(parent_resolver)
 
+                try: 
+                    get_running_loop()
+                except RuntimeError:
+                        pass
+                else:
+                    resolver=sync_to_async(resolver)
+
                 def custom_resolver(root, info, **args):
                     fk_obj = resolver(root, info, **args)
                     if not isinstance(fk_obj, model):