Source for file remove_from_group.act.php

<?php
/**
 * @package polyphony.agents
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: remove_from_group.act.php,v 1.11 2007/09/19 14:04:52 adamfranco Exp $
 */ 
 
/**
 * add_to_group.act.php
 * This action will add the agent and group ids passed to it to the specified group.
 * 11/10/04 Adam Franco
 *
 * @package polyphony.agents
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: remove_from_group.act.php,v 1.11 2007/09/19 14:04:52 adamfranco Exp $
 */
 
require_once(POLYPHONY."/main/library/AbstractActions/MainWindowAction.class.php");
 
/**
 * This action will allow for the modification of group Membership.
 *
 * @since 11/10/04
 * 
 * @package polyphony.agents
 * 
 * @copyright Copyright &copy; 2005, Middlebury College
 * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License (GPL)
 *
 * @version $Id: remove_from_group.act.php,v 1.11 2007/09/19 14:04:52 adamfranco Exp $
 */
class remove_from_groupAction 
    extends MainWindowAction
{
    /**
     * Check Authorizations
     * 
     * @return boolean 
     * @access public
     * @since 4/26/05
     */
    function isAuthorizedToExecute () {
        $idManager = Services::getService("Id");
        $agentManager = Services::getService("Agent");
        $harmoni = Harmoni::instance();
        
        $harmoni->request->startNamespace("polyphony-agents");
        $destinationId =$idManager->getId(RequestContext::value('destinationgroup'));
        $harmoni->request->endNamespace();
 
        // Check for authorization
        $authZManager = Services::getService("AuthZ");
        $idManager = Services::getService("IdManager");
        if ($authZManager->isUserAuthorized(
                    $idManager->getId("edu.middlebury.authorization.remove_children"),
                    $destinationId))
        {
            return TRUE;
        } else
            return FALSE;
    }
    
    /**
     * Build the content for this action
     * 
     * @return void 
     * @access public
     * @since 4/26/05
     */
    function buildContent () {
 
        $idManager = Services::getService("Id");
        $agentManager = Services::getService("Agent");
        $harmoni = Harmoni::instance();
        
        $harmoni->request->startNamespace("polyphony-agents");
                
        $id =$idManager->getId(RequestContext::value('destinationgroup'));
        $destGroup =$agentManager->getGroup($id);
        
        foreach ($harmoni->request->getKeys() as $idString) {
        
            $type = RequestContext::value($idString);
            
            if ($type == "group" || $type == "agent") {
                $id =$idManager->getId(strval($idString));
                
                if ($type == "group") {
                    $member =$agentManager->getGroup($id);
                } else {
                    $member =$agentManager->getAgent($id);
                }
                    $destGroup->remove($member);
            }
            
            
        }
        
        $harmoni->request->endNamespace();
        
        // Send us back to where we were
        $harmoni->history->goBack("polyphony/agents/add_to_group");
    }
}