From bc92aace899cd172d697b98ffa6c4fbd5e36c5bb Mon Sep 17 00:00:00 2001
From: David Monllao <davidm@moodle.com>
Date: Thu, 27 Nov 2014 11:32:58 +0800
Subject: [PATCH] MDL-22309 enrol_self: Fixing get_role_users usage

---
 enrol/self/lib.php | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/enrol/self/lib.php b/enrol/self/lib.php
index b65b473826d..41fec2c5812 100644
--- a/enrol/self/lib.php
+++ b/enrol/self/lib.php
@@ -432,7 +432,13 @@ class enrol_self_plugin extends enrol_plugin {
         if (!empty($CFG->coursecontact)) {
             $croles = explode(',', $CFG->coursecontact);
             list($sort, $sortparams) = users_order_by_sql('u');
-            $rusers = get_role_users($croles, $context, true, '', 'r.sortorder ASC, ' . $sort, null, '', '', '', '', $sortparams);
+            // We only use the first user.
+            $i = 0;
+            do {
+                $rusers = get_role_users($croles[$i], $context, true, '',
+                    'r.sortorder ASC, ' . $sort, null, '', '', '', '', $sortparams);
+                $i++;
+            } while (empty($rusers) && !empty($croles[$i]));
         }
         if ($rusers) {
             $contact = reset($rusers);