check if mod_mam is loaded before calling mod_mam:is_empty_for_room

2019-02-18 12:03:16 +01:00 · 2019-02-18 12:03:16 +01:00 · f987db5a39
parent a47c566b39
commit f987db5a39
1 changed files with 6 additions and 1 deletions
--- a/src/mod_muc_admin.erl
+++ b/src/mod_muc_admin.erl
@ -839,7 +839,12 @@ decide_room(unused, {_Room_name, _Host, Room_pid}, ServerHost, Last_allowed) ->
 	    false
    end;
 decide_room(empty, {Room_name, Host, _Room_pid}, ServerHost, _Last_allowed) ->
-	mod_mam:is_empty_for_room(ServerHost, Room_name, Host).
+    case gen_mod:is_loaded(ServerHost, mod_mam) of
+        true ->
+        mod_mam:is_empty_for_room(ServerHost, Room_name, Host);
+        _ ->
+        false
+    end.

 seconds_to_days(S) ->
    S div (60*60*24).