code: def show(self):
          
          url = self.request.getURL()
          # XXX: Hack to show the viewlet only on the AR base_view
          if not any(map(url.endswith, ["base_view", "manage_results"])):
              return False
          return self.attachments_view.user_can_add_attachments() or \
                 self.attachments_view.user_can_update_attachments()
docs: Controls if the viewlet should be rendered