From 966079c1d55f778a7be9d71ceb8a09c610afdf88 Mon Sep 17 00:00:00 2001
From: Max Holtzberg <max@holtzberg.de>
Date: Thu, 29 Dec 2011 11:57:44 +0100
Subject: [PATCH] Correct handling of NULL values in user defined split_part
 function on SQLite

issue2370
review214001
(transplanted from 81d21490c70b90168877a7a5a7572330b84100f0)
---
 trytond/backend/sqlite/database.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/trytond/backend/sqlite/database.py b/trytond/backend/sqlite/database.py
index d01d7dd961..1a809ddfc8 100644
--- a/trytond/backend/sqlite/database.py
+++ b/trytond/backend/sqlite/database.py
@@ -81,6 +81,8 @@ def date_trunc(_type, date):
                 tm_tuple.tm_mday)
 
 def split_part(text, delimiter, count):
+    if text is None:
+        return None
     return (text.split(delimiter) + [''] * (count - 1))[count - 1]
 
 def replace(text, pattern, replacement):