From 7a7612523f34c85af4a35ec7115e18d898dfdccf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Tue, 4 Oct 2011 19:13:23 +0200
Subject: [PATCH] Don't try to read Binary field for non-saved records

---
 tryton/gui/window/view_form/model/field.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tryton/gui/window/view_form/model/field.py b/tryton/gui/window/view_form/model/field.py
index 79e34016b4..f6ad89911b 100644
--- a/tryton/gui/window/view_form/model/field.py
+++ b/tryton/gui/window/view_form/model/field.py
@@ -828,6 +828,8 @@ class BinaryField(CharField):
 
     def get_data(self, record):
         if not isinstance(record.value.get(self.name), (basestring, buffer)):
+            if record.id < 0:
+                return ''
             ctx = rpc.CONTEXT.copy()
             ctx.update(record.context_get())
             rpcprogress = RPCProgress('execute', ('model', record.model_name,