From c36ff651f2ee97e7975e94e0361525cff9bc8e10 Mon Sep 17 00:00:00 2001
From: "Jay (Open ERP)" <jvo@tinyerp.com>
Date: Wed, 11 Nov 2009 11:20:28 +0530
Subject: [PATCH] [FIX] M2M : values filtering on set()

lp bug: https://launchpad.net/bugs/480301 fixed

bzr revid: jvo@tinyerp.com-20091111055028-lza87cnyffvwxy4i
---
 bin/osv/fields.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/bin/osv/fields.py b/bin/osv/fields.py
index cde2a0e8ff4..dc5e2a9fd4a 100644
--- a/bin/osv/fields.py
+++ b/bin/osv/fields.py
@@ -528,6 +528,8 @@ class many2many(_column):
             return
         obj = obj.pool.get(self._obj)
         for act in values:
+            if not (isinstance(act, list) or isinstance(act, tuple)) or not act:
+                continue
             if act[0] == 0:
                 idnew = obj.create(cr, user, act[2])
                 cr.execute('insert into '+self._rel+' ('+self._id1+','+self._id2+') values (%s,%s)', (id, idnew))