From 503f006019ed8fd0de39f8ea4c631b0d675409fb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Wed, 23 Jul 2008 16:08:52 +0200
Subject: [PATCH] Fix remove on xxx2many for empty list

---
 trytond/osv/fields.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/trytond/osv/fields.py b/trytond/osv/fields.py
index bdd7fc064e..4dcac3f037 100644
--- a/trytond/osv/fields.py
+++ b/trytond/osv/fields.py
@@ -440,6 +440,8 @@ class One2Many(Column):
                     ids = [act[1]]
                 else:
                     ids = list(act[1])
+                if not ids:
+                    continue
                 cursor.execute('UPDATE "' + _table + '" ' \
                         'SET "' + self._field + '" = NULL ' \
                         'WHERE id IN (' \
@@ -551,6 +553,8 @@ class Many2Many(Column):
                     ids = [act[1]]
                 else:
                     ids = list(act[1])
+                if not ids:
+                    continue
                 cursor.execute('DELETE FROM "' + self._rel + '" ' \
                         'WHERE "' + self._id1 + '" = %s ' \
                             'AND "'+ self._id2 + '" IN (' \