make the manage_renameObject method working even if the activity tool is not installed

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@11431 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/CopySupport.py

@@ -127,7 +127,12 @@ class CopyContainer:
       """
       ob=self.restrictedTraverse(id)
       # Make sure there is no activities pending on that object
+      try:
         portal_activities = getToolByName(self, 'portal_activities')
+      except AttributeError:
+        # There is no activity tool
+        portal_activities = None
+      if portal_activities is not None:
         if portal_activities.countMessage(path=ob.getPath())>0:
           raise ValueError, 'Sorry, some message are pending'