How to Make Zend_Controller_Router resets un-wanted parameter by default - php

Question

I'm using Zend-Framework 1.9.5 to make a web-application, But it's Url_Helper was quite tricky to me in the matter of parameter reset!, I know it's a good feature (parameter preserving) but in most cases I don't need it!.
So I'm thinking of overriding the default Router to force it loosing parameters Unless I ask for it or maybe specifying a certain parameters that it keeps like (lang, or something like that).
Also I want to make it the default router so I don't have to edit my Controllers, Views to get that done!
Any suggestions?
Update:
I spent the whole morning trying to write my url helper Admin_View_Helper_Xurl, But I couldn't do anything that solves the problem:
<?php
class Admin_View_Helper_Xurl extends Zend_View_Helper_Abstract
{
public function xurl(array $urlOptions = array(), $name = 'default', $reset = false, $encode = true)
{
$router = Zend_Controller_Front::getInstance()->getRouter();
$wanted_params = array('module', 'controller', 'action', 'lang', 'page', 'search');
$route = $router->getCurrentRoute();
$something = anyWayToGetThatObjectOrClass();
$params = $something->getParams();
foreach($params as $key => $val) {
if (!in_array($key, $wanted_params)) {
$params[$key] = null; // OR uset($params[$key]);
}
}
$something->clearParams();
$something->setParams($params);
return $router->assemble($urlOptions, $name, $reset, $encode);
}
}
I tried to get current URL parameters and filter them and clear the current parameters and pass my filtered ones but I couldn't do anything that does it without hard-code editing one Zend_Framework code :(.
Thanks

Answer 1

When generating a link a view, you can ask the helper to get rid of all aparamters with a simple boolean :
<?php echo $this->url(array('controller' => 'index', action => 'action'), 'default', true); ?>
The last parameter tells whether to reset parameters or not.

Answer 2

I came up with this solution. It took 7 hours to be functional.
class Zend_View_Helper_Xurl extends Zend_View_Helper_Abstract
{
const RESET_ALL = 'all';
const RESET_CUSTOM = 'normal';
const RESET_NON_MVC = 'mvc';
const RESET_NONE = 'none';
protected $_wantedParams = array('module', 'controller', 'action', 'lang', 'page', 'search');
protected $_router;
/**
* Generates an url given the name of a route.
*
* #access public
*
* #param array $urlOptions Options passed to the assemble method of the Route object.
* #param mixed $name The name of a Route to use. If null it will use the current Route
* #param bool $reset Whether or not to reset the route defaults with those provided
* #return string Url for the link href attribute.
*/
public function __construct()
{
$router = Zend_Controller_Front::getInstance()->getRouter();
$this->_router = clone $router;
}
public function xurl(array $urlOptions = array(), $reset = 'mvc', $encode = true)
{
$urlOptions = $this->_getFilteredParams($urlOptions, $reset);
return $this->_router->assemble($urlOptions, $name, true, $encode);
}
protected function _getFilteredParams($data = array(), $level)
{
// $filteredValues = array();
$request = Zend_Controller_Front::getInstance()->getRequest();
$filteredValues = $request->getUserParams();
$$filteredValues['module'] = $request->getModuleName();
$$filteredValues['controller'] = $request->getControllerName();
$$filteredValues['action'] = $request->getActionName();
switch ($level) {
case self::RESET_ALL:
$filteredValues['module'] = null;
$filteredValues['controller'] = null;
$filteredValues['action'] = null;
// break omitted intentionally
case self::RESET_NON_MVC:
$filteredValues['page'] = null;
$filteredValues['lang'] = null;
$filteredValues['search'] = null;
// break omitted intentionally
case self::RESET_CUSTOM:
foreach ($filteredValues as $key=>$val) {
if (!in_array($key, $this->_wantedParams)) {
$filteredValues[$key] = null;
}
}
break;
case self::RESET_NONE:
break;
default:
throw new RuntimeException('Unsuppoted Xurl URL helper reset level.');
break;
}
foreach ($filteredValues as $key => $val) {
if (!array_key_exists($key, $data)) {
$data[$key] = $val;
}
}
return $data;
}
}
Clearly it's a View Helper class, may be not the best solution but it works fine with me for now.