From 05746e64f2e1250e4cce2052d601739028fc6f2e Mon Sep 17 00:00:00 2001
From: mjollnir_ <mjollnir_>
Date: Wed, 17 Aug 2005 23:16:34 +0000
Subject: [PATCH] Fixing a postgres error. You can't sort by a field that isn't
 in the select list when you have distinct

---
 lib/datalib.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/lib/datalib.php b/lib/datalib.php
index 128d09d786a..e12ea2a6878 100644
--- a/lib/datalib.php
+++ b/lib/datalib.php
@@ -1963,7 +1963,14 @@ function get_group_users($groupid, $sort='u.lastaccess DESC', $exceptions='', $f
     } else {
         $except = '';
     }
-    return get_records_sql("SELECT DISTINCT $fields
+    // in postgres, you can't have things in sort that aren't in the select, so...
+    $extrafield = str_replace('ASC','',$sort);
+    $extrafield = str_replace('DESC','',$sort);
+    $extrafield = trim($extrafield);
+    if (!empty($extrafield)) {
+        $extrafield = ','.$extrafield;
+    }
+    return get_records_sql("SELECT DISTINCT $fields $extrafield
                               FROM {$CFG->prefix}user u,
                                    {$CFG->prefix}groups_members m
                              WHERE m.groupid = '$groupid'