Index: moodle/mod/lamslesson/lib.php
===================================================================
diff -u -r606bc0215a34c4af3f93611e71553d8020d47036 -r585c2e273fb963a8c0299f704499a71298c22b58
--- moodle/mod/lamslesson/lib.php	(.../lib.php)	(revision 606bc0215a34c4af3f93611e71553d8020d47036)
+++ moodle/mod/lamslesson/lib.php	(.../lib.php)	(revision 585c2e273fb963a8c0299f704499a71298c22b58)
@@ -244,7 +244,7 @@
 function lamslesson_scale_used_anywhere($scaleid) {
     global $DB;
 
-    if ($scaleid and $DB->record_exists('lamslesson', 'grade', -$scaleid)) {
+    if ($scaleid and $DB->record_exists('lamslesson', array('grade' => -$scaleid))) {
         return true;
     } else {
         return false;