[Zope-Checkins] CVS: Zope/lib/python/OFS - History.py:1.14.6.1

[Chris McDonough]

Update of /cvs-repository/Zope/lib/python/OFS
In directory cvs.zope.org:/tmp/cvs-serv10714

Modified Files:
      Tag: Zope-2_6-branch
	History.py 
Log Message:
Change manage_change_history method to not fail with IndexError when underlying storage does not support history.


=== Zope/lib/python/OFS/History.py 1.14 => 1.14.6.1 ===
--- Zope/lib/python/OFS/History.py:1.14	Wed Aug 14 17:42:56 2002
+++ Zope/lib/python/OFS/History.py	Mon Dec 16 12:24:29 2002
@@ -113,6 +113,9 @@
 
 
         r=self._p_jar.db().history(self._p_oid, None, last)
+        if r is None:
+            # storage doesn't support history
+            return ()
         r=r[first:]
 
         for d in r: