Attempted hotfix for #134 and likely #127

Reverts #119 in an attempt to prevent infinite group creation on Discord server.

services/managers/discord_manager.py

@@ -287,12 +287,11 @@ class DiscordManager:
         if len(groups) == 0:
             group_ids = []
         else:
-            roles = api.get_roles()
             for g in groups:
-                if g in roles:
-                    group_ids.append(roles[g]['id'])
-                else:
-                    # need to create role on server for group
+                try:
+                    group_id = api.get_group_id(g)
+                    group_ids.append(group_id)
+                except:
                     group_ids.append(DiscordManager.create_group(g))
         api.set_roles(user_id, group_ids)