Added Purchase Invice edition.

[fa-stable.git] / includes / references.inc

diff --git a/includes/references.inc b/includes/references.inc
index 0c11ebee3defacaa1d96bcdfb61a25a862f08160..b67267c5ca41baad6c04e6aaa2e43a863c142865 100644 (file)
--- a/includes/references.inc
+++ b/includes/references.inc
@@ -101,8 +101,10 @@ class references
 }
 
 //----------------------------------------------------------------------------
-
-function is_new_reference($ref, $type)
+//
+//     Check if reference was not used so far (for other transaction than $trans_no)
+//
+function is_new_reference($ref, $type, $trans_no=0)
 {
        $db_info = get_systype_db_info($type);
        $db_name = $db_info[0];
@@ -133,6 +135,10 @@ function is_new_reference($ref, $type)
                        WHERE $db_ref=$ref AND ISNULL(v.id)";
        }
 
+       if ($trans_no)
+       {
+               $sql .= " AND $db_name.$db_trans != ".db_escape($trans_no);
+       }
        $result = db_query($sql, "could not test for unique reference");
 
        return (db_num_rows($result) == 0);