Source for file change.act.php

<?php
/**
 * @since 7/21/05
 * @package polyphony.language
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: change.act.php,v 1.10 2007/09/19 14:04:56 adamfranco Exp $
 */ 
 
require_once(POLYPHONY."/main/library/AbstractActions/Action.class.php");
 
/**
 * Change the language to the one specified by the user
 * 
 * @since 7/21/05
 * @package polyphony.language
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: change.act.php,v 1.10 2007/09/19 14:04:56 adamfranco Exp $
 */
class changeAction
    extends Action
{
        
    /**
     * Check Authorizations
     * 
     * @return boolean 
     * @access public
     * @since 4/26/05
     */
    function isAuthorizedToExecute () {
        return TRUE;
    }
    
    /**
     * Execute this action.
     * 
     * @param object Harmoni $harmoni 
     * @return mixed 
     * @access public
     * @since 4/25/05
     */
    function execute ( $harmoni ) {
        // Set the new language
        $langLoc = Services::getService('Lang');
        $harmoni->request->startNamespace("polyphony");
        $langLoc->setLanguage($harmoni->request->get("language"));
        $harmoni->request->endNamespace();
        
        debug::output("Setting the language to ".$harmoni->request->get("polyphony/language"));
        debug::output("SESSION: ".printpre($_SESSION, TRUE));
        
        $harmoni->history->goBack("polyphony/language/change");
        
        $null = null;
        return $null;
    }
    
}
 
?>