From c0663561a4ca2f3c36881c19066feeff70bb5c51 Mon Sep 17 00:00:00 2001
From: Sebastien Robin <seb@nexedi.com>
Date: Wed, 28 Sep 2005 14:12:37 +0000
Subject: [PATCH] do not assume there is always a solve and diverge method

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@3897 20353a03-c40f-0410-a6d1-a30d3c3de9de
---
 product/ERP5/Document/Delivery.py | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/product/ERP5/Document/Delivery.py b/product/ERP5/Document/Delivery.py
index 0d6e8d1037..f81aa6cdbf 100755
--- a/product/ERP5/Document/Delivery.py
+++ b/product/ERP5/Document/Delivery.py
@@ -279,10 +279,11 @@ class Delivery(XMLObject):
       deliver is convergent, and if so it will put the delivery
       in a solved state, if not convergent in a diverged state
       """
-      if self.isDivergent():
-        self.diverge()
-      else:
-        self.converge()
+      if hasattr(self,'diverge') and hasattr(self,'converge'):
+        if self.isDivergent():
+          self.diverge()
+        else:
+          self.converge()
 
     #######################################################
     # Defer indexing process
-- 
2.30.9