Index: moodle/mod/lamslesson/lib.php
===================================================================
RCS file: /usr/local/cvsroot/moodle/mod/lamslesson/lib.php,v
diff -u -r1.7 -r1.8
--- moodle/mod/lamslesson/lib.php	5 May 2011 06:14:28 -0000	1.7
+++ moodle/mod/lamslesson/lib.php	4 Dec 2011 18:36:44 -0000	1.8
@@ -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;