Source for file up.act.php

<?php
/**
 * @package polyphony.basket
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: up.act.php,v 1.6 2007/09/19 14:04:54 adamfranco Exp $
 */ 
 
require_once(POLYPHONY."/main/library/AbstractActions/MainWindowAction.class.php");
require_once(POLYPHONY."/main/library/Basket/Basket.class.php");
 
/**
 * 
 * 
 * @package polyphony.basket
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: up.act.php,v 1.6 2007/09/19 14:04:54 adamfranco Exp $
 */
class upAction 
    extends MainWindowAction
{
    /**
     * Check Authorizations
     * 
     * @return boolean 
     * @access public
     * @since 4/26/05
     */
    function isAuthorizedToExecute () {
        // Check that the user can access this collection
        return TRUE;
    }
    
    /**
     * Return the heading text for this action, or an empty string.
     * 
     * @return string 
     * @access public
     * @since 4/26/05
     */
    function getHeadingText () {
        return _("Move an Item in Your Selection");
    }
    
    /**
     * Build the content for this action
     * 
     * @return boolean 
     * @access public
     * @since 4/26/05
     */
    function buildContent () {
        $actionRows =$this->getActionRows();
        $harmoni = Harmoni::instance();
        $harmoni->request->startNamespace("basket");
        
        $idManager = Services::getService("Id");
        $authZ = Services::getService("AuthZ");
        
        $basket = Basket::instance();
        $assetId =$idManager->getId(RequestContext::value("asset_id"));
 
        $basket->moveUp($assetId);
 
        $harmoni->request->endNamespace();
        RequestContext::locationHeader($harmoni->request->quickURL("basket", "view"));
    }
}