code: def get_uri(self, action, obj=None, date=None):
          
          if date is None:
              date = action.timestamp
          date = datetime_safe.new_datetime(date).strftime('%Y-%m-%d')
          return 'tag:%s,%s:%s' % (Site.objects.get_current().domain, date,
                                   self.get_url(action, obj, False))
docs: Returns an RFC3987 IRI ID for the given object, action and date.