public function backToHere($url, $extraParams = array())
{
// Add $extraParams to current URL
$backtoUrl = Url::mergeQueryParams($this->request->getUrl(), $extraParams);
// Add merged current URL as backto param to $url
return Url::mergeQueryParams($url, array('backto' => $backtoUrl));
}
public function addLocationParams($params)
{
$this->redirect->setLocation(Url::mergeQueryParams($this->redirect->getLocation(), $params));
}
