From c2ab23894b2365640bdc54a6defee178a876d3c1 Mon Sep 17 00:00:00 2001
From: Charles Fulton <mackensen@gmail.com>
Date: Sun, 4 Mar 2012 09:32:22 -0800
Subject: [PATCH] MDL-29909 wiki: do not show groups when no groups present

---
 mod/wiki/renderer.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mod/wiki/renderer.php b/mod/wiki/renderer.php
index 26ea0ff49a7..365d5bc1d69 100644
--- a/mod/wiki/renderer.php
+++ b/mod/wiki/renderer.php
@@ -390,6 +390,9 @@ class mod_wiki_renderer extends plugin_renderer_base {
                     }
                 } else {
                     $group = groups_get_group($subwiki->groupid);
+                    if (!$group) {
+                        return;
+                    }
                     $users = groups_get_members($subwiki->groupid);
                     foreach ($users as $user) {
                         $options[$group->id][$group->name][$group->id . '-' . $user->id] = fullname($user);