Concurrent edition fix

diff --git a/includes/systypes.inc b/includes/systypes.inc
index e9aa69871d677a51010e54944a05dba232f3f4e2..3d45981038f15f3d61bc53b50b5e26c666036d3d 100644 (file)
--- a/includes/systypes.inc
+++ b/includes/systypes.inc
@@ -14,7 +14,8 @@ Function get_next_trans_no ($trans_type){
 
     $next_number = $myrow[0] + 1;
 
-    $sql = "UPDATE ".TB_PREF."sys_types SET type_no = $next_number WHERE type_id = $trans_type";
+    $sql = "UPDATE ".TB_PREF."sys_types SET type_no = $next_number WHERE type_id = $trans_type
+       AND type_no = ". $myrow[0]; //concurrency paranoic protection
 
     db_query($sql,"The next transaction number for $trans_type could not be updated");