code: def daft_link(self):
          
          try:
              if self._data_from_search:
                  link = self._data_from_search.find('a', href=True)
                  return 'http://www.daft.ie' + link['href']
              else:
                  return self._ad_page_content.find('link', {'rel': 'canonical'})['href']
          except Exception as e:
              if self._debug:
                  logging.error(
                      "Error getting daft_link. Error message: " + e.args[0])
              return
docs: This method returns the url of the listing.
          :return: