From 9f50ff257e0ffac3f138e9dd10cfab1aea70d219 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Sun, 22 Mar 2009 23:36:25 +0100
Subject: [PATCH] Prevent exception in on_change_party of move if party has not
 receivable nor payable account for issue891

---
 move.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/move.py b/move.py
index 1bfb6b7250..0f890c03ab 100644
--- a/move.py
+++ b/move.py
@@ -812,6 +812,10 @@ class Line(ModelSQL, ModelView):
         party = party_obj.browse(cursor, user, vals.get('party'),
                 context=context)
 
+        if not party.account_receivable \
+                or not party.account_payable:
+            return res
+
         if party and (not vals.get('debit')) and (not vals.get('credit')):
             query = 'SELECT ' \
                         'COALESCE(SUM(' \