From fbd65fabb27d16710a063f3db5d9bda79fff9dcb Mon Sep 17 00:00:00 2001
From: Andreas Grabs <moodle@grabs-edv.de>
Date: Fri, 7 Feb 2020 18:47:37 +0100
Subject: [PATCH] MDL-67894 mod_feedback: database error on show responses

---
 mod/feedback/classes/responses_table.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mod/feedback/classes/responses_table.php b/mod/feedback/classes/responses_table.php
index af1ae2c1764..9ce2b392e57 100644
--- a/mod/feedback/classes/responses_table.php
+++ b/mod/feedback/classes/responses_table.php
@@ -157,6 +157,7 @@ class mod_feedback_responses_table extends table_sql {
         $this->define_headers($tableheaders);
 
         $this->sortable(true, 'lastname', SORT_ASC);
+        $this->no_sorting('groups');
         $this->collapsible(true);
         $this->set_attribute('id', 'showentrytable');