do not fail at uninstall if we don't find the object

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@11692 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/BusinessTemplate.py

@@ -2174,8 +2174,11 @@ class PortalTypeRolesTemplateItem(BaseTemplateItem):
       keys = self._objects.keys()
     for roles_path in keys:
       path = 'portal_types/%s' % roles_path.split('/', 1)[1]
+      try:
         obj = p.unrestrictedTraverse(path)
         setattr(obj, '_roles', [])
+      except (NotFound, KeyError):
+        pass
       
 class SitePropertyTemplateItem(BaseTemplateItem):