$this->_quote((string)self::hashurl($url)),
$this->_quote((string)$url),
$this->_quote((string)$this->urlhash)));
if ($result === false) {
common_log_db_error($this, 'UPDATE', __FILE__);
$this->_quote((string)self::hashurl($url)),
$this->_quote((string)$url),
$this->_quote((string)$this->urlhash)));
if ($result === false) {
common_log_db_error($this, 'UPDATE', __FILE__);