update permission user & group lookup as suggested

Author: ryanmerolle

startup_scripts/015_object_permissions.py

@@ -43,15 +43,15 @@
 
     if permission_details.get("groups", 0):
         for groupname in permission_details["groups"]:
-            group = AdminGroup.objects.get(name=groupname)
+            group = AdminGroup.objects.filter(name=groupname).first()
 
             if group:
                 object_permission.groups.add(group)
                 print(" 👥 Assigned group %s object permission of %s" % (groupname, groupname))
 
     if permission_details.get("users", 0):
         for username in permission_details["users"]:
-            user = AdminUser.objects.get(username=username)
+            user = AdminUser.objects.filter(username=username).first()
 
             if user:
                 object_permission.users.add(user)