From f4fc5cd1a616e9dc014e3ed2e921c43ee7389939 Mon Sep 17 00:00:00 2001
From: Dan Marsden <dan@danmarsden.com>
Date: Wed, 18 Sep 2019 20:16:17 +1200
Subject: [PATCH] Fix #422 - Only ask for fields once. fixes issue with Oracle.

---
 classes/structure.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/classes/structure.php b/classes/structure.php
index d6d1ab9..022bda6 100644
--- a/classes/structure.php
+++ b/classes/structure.php
@@ -808,7 +808,7 @@ class mod_attendance_structure {
                     $groups = $groupid;
                 }
                 $users = get_users_by_capability($this->context, 'mod/attendance:canbelisted',
-                    $userfields.',u.id, u.firstname, u.lastname, u.email',
+                    $userfields,
                     $orderby, $startusers, $usersperpage, $groups,
                     '', false, true);
             } else {
@@ -824,7 +824,7 @@ class mod_attendance_structure {
                     $groups = $groupid;
                 }
                 $users = get_users_by_capability($this->context, 'mod/attendance:canbelisted',
-                    $userfields.',u.id, u.firstname, u.lastname, u.email',
+                    $userfields,
                     $orderby, '', '', $groups,
                     '', false, true);
             } else {