Rob Allen's DevNotes

Some of our Zend Framework applications have to run on IIS without ISAPI_Rewrite installed. In these cases we need urls of the form http://www.example.com/index.php?module=mod&controller=con&action=act. I couldn't get this to work out of the box with Zend Framework 1.5, so wrote my own router called App_Controller_Router_Route_RequestVars.

This code obviously only supports what I needed and I've only tested it on IIS for Windows 2003 Server, so you may need to tweak to make it do what you want! Feel free to share any fixes :)

This is the code:

<?php

/** Zend_Controller_Router_Exception */
require_once 'Zend/Controller/Router/Exception.php';

/** Zend_Controller_Router_Route_Interface */
require_once 'Zend/Controller/Router/Route/Interface.php';

/**
 * Route
 *
 * @package    App_Controller
 * @subpackage Router
 * @copyright  Copyright (c) 2008 Rob Allen (rob@akrabat.com)
 */
class App_Controller_Router_Route_RequestVars implements Zend_Controller_Router_Route_Interface
{
    protected $_current = array();

    /**
     * Instantiates route based on passed Zend_Config structure
     */
    public static function getInstance(Zend_Config $config)
    {
        return new self();
    }

    /**
     * Matches a user submitted path with a previously defined route.
     * Assigns and returns an array of defaults on a successful match.
     *
     * @param string Path used to match against this routing map
     * @return array|false An array of assigned values or a false on a mismatch
     */
    public function match($path)
    {
        $frontController = Zend_Controller_Front::getInstance();
        $request = $frontController->getRequest();
        /* @var $request Zend_Controller_Request_Http */
        
        $baseUrl = $request->getBaseUrl();
        if (strpos($baseUrl, 'index.php') !== false) {
            $url = str_replace('index.php', '', $baseUrl);
            $request->setBaseUrl($url);
        }
        
        $params = $request->getParams();
        
        if (array_key_exists('module', $params)
                || array_key_exists('controller', $params)
                || array_key_exists('action', $params)) {
            
            $module = $request->getParam('module', $frontController->getDefaultModule());
            $controller = $request->getParam('controller', $frontController->getDefaultControllerName());
            $action = $request->getParam('action', $frontController->getDefaultAction());

            $result = array('module' => $module, 
                'controller' => $controller, 
                'action' => $action, 
                );
            $this->_current = $result;
            return $result;
        }
        return false;
    }

    /**
     * Assembles a URL path defined by this route
     *
     * @param array An array of variable and value pairs used as parameters
     * @return string Route path with user submitted parameters
     */
    public function assemble($data = array(), $reset=false)
    {
        $frontController = Zend_Controller_Front::getInstance();
        
        if(!array_key_exists('module', $data) && !$reset 
            && array_key_exists('module', $this->_current)
            && $this->_current['module'] != $frontController->getDefaultModule()) {
            $data = array_merge(array('module'=>$this->_current['module']), $data);
        }
        if(!array_key_exists('controller', $data) && !$reset 
            && array_key_exists('controller', $this->_current) 
            && $this->_current['controller'] != $frontController->getDefaultControllerName()) {
            $data = array_merge(array('controller'=>$this->_current['controller']), $data);
        }
        if(!array_key_exists('action', $data) && !$reset 
            && array_key_exists('action', $this->_current)
            && $this->_current['action'] != $frontController->getDefaultAction()) {
            $data = array_merge(array('action'=>$this->_current['action']), $data);
        }
        
        $url = '';
        if(!empty($data)) {
            $urlParts = array();
            foreach($data as $key=>$value) {
                $urlParts[] = $key . '=' . $value;
            }
            $url = '?' . implode('&', $urlParts);
        }

        return $url;
    }
}

This route is then added to the Front Controller's router in my bootstrap like this:

$frontController = Zend_Controller_Front::getInstance();
$router = $frontController->getRouter();
$router->addRoute('requestVars', new App_Controller_Router_Route_RequestVars());

Hopefully this is a useful starting point for others who can't use mod_rewrite with Zend Framework.

This entry was posted on Tuesday, 3rd June 2008 at 12:45 and is filed under Zend Framework.