From 84b0c7ebbf3cc7770cd90a1519d47b4f6e531f58 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Wed, 17 Mar 2010 17:54:16 +0100
Subject: [PATCH] Allow to have boolean as states value

---
 trytond/model/fields/field.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/trytond/model/fields/field.py b/trytond/model/fields/field.py
index 556671be36..4c40b339f8 100644
--- a/trytond/model/fields/field.py
+++ b/trytond/model/fields/field.py
@@ -28,10 +28,11 @@ def states_validate(value):
     for state in value:
         if state == 'icon':
             continue
-        assert isinstance(value[state], PYSON), \
+        assert isinstance(value[state], (bool, PYSON)), \
                 'values of states must be PYSON'
-        assert value[state].types() == set([bool]), \
-                'values of states must return boolean'
+        if hasattr(value[state], 'types'):
+            assert value[state].types() == set([bool]), \
+                    'values of states must return boolean'
 
 def on_change_validate(value):
     if value: