Source for file add_delete_group.act.php

<?php
 
/**
 * group_membership.act.php
 * This action will allow for the creation/deletion of groups
 * 11/29/04 Ryan Richards, some code from 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: add_delete_group.act.php,v 1.15 2007/09/19 14:04:52 adamfranco Exp $
 */
 
require_once(HARMONI."/GUIManager/Layouts/YLayout.class.php");
require_once(HARMONI."/GUIManager/Components/Heading.class.php");
 
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: add_delete_group.act.php,v 1.15 2007/09/19 14:04:52 adamfranco Exp $
 */
class add_delete_groupAction 
    extends MainWindowAction
{
    /**
     * Check Authorizations
     * 
     * @return boolean 
     * @access public
     * @since 4/26/05
     */
    function isAuthorizedToExecute () {
        // Check for authorization
         $authZManager = Services::getService("AuthZ");
         $idManager = Services::getService("IdManager");
         if ($authZManager->isUserAuthorized(
                     $idManager->getId("edu.middlebury.authorization.view"),
                     $idManager->getId("edu.middlebury.authorization.root")))
         {
            return TRUE;
         } else {
 
             return FALSE;
        }
    }
 
    /**
     * Return the heading text for this action, or an empty string.
     * 
     * @return string 
     * @access public
     * @since 4/26/05
     */
    function getHeadingText () {
        return dgettext("polyphony", "Add and Delete Groups");
    }
 
    /**
     * Build the content for this action
     * 
     * @return void 
     * @access public
     * @since 4/26/05
     */
    function buildContent () {
        $harmoni = Harmoni::instance();
        $harmoni->request->startNamespace("polyphony-agents");
        $harmoni->history->markReturnURL("polyphony/agents/delete_group", $harmoni->request->mkURLWithPassthrough());
 
        // Our
        $actionRows =$this->getActionRows();
 
        $agentManager = Services::getService("Agent");
 
        // pass our search variables through to new URLs
        $harmoni->request->passthrough();
 
        /*********************************************************
         * Deleting a Group
         *********************************************************/
 
         // 'Delete a Group' header
/*        $deleteHeader = new Heading(_("Delete a Group"), 3);
        $actionRows->add($deleteHeader, "100%", null, null, LEFT, CENTER);
*/
 
        ob_start();
        $addURL = $harmoni->request->quickURL("agents","add_group");
        $harmoni->history->markReturnURL("polyphony/agents/add_group", $harmoni->request->mkURLWithPassthrough());
        print sprintf(_("On this page you may delete existing groups with the interface below, or %s."), "<input type='button' value='"._("Add a New Group")."' onclick='javascript: window.location = \"$addURL\"'/>");
        
        $actionRows->add(new Block(ob_get_contents(), 4));
        ob_end_clean();
 
        // Loop through all of the Root Groups 
        $groups =$agentManager->getGroupsBySearch($null = null, new Type("Agent & Group Search", "edu.middlebury.harmoni", "RootGroups"));
        while ($groups->hasNext()) {
            $group =$groups->next();
            $groupId =$group->getId();
            
            // Create a layout for this group using the GroupPrinter
            ob_start();
 
            GroupPrinter::printGroup($group, $harmoni,
                                            2,
                                            "add_delete_groupAction::printGroup",
                                            "add_delete_groupAction::printMember");
            $groupLayout = new Block(ob_get_contents(), 4);
            ob_end_clean();
            $actionRows->add($groupLayout, "100%", null, LEFT, CENTER);
        }
 
        $harmoni->request->endNamespace();
 
        /*********************************************************
         * Return the main layout.
         *********************************************************/
        return $actionRows;
    }
 
 
 
    /*******************************************************
     * Functions used for the GroupPrinter
     *********************************************************/
 
    /**
     * Callback function for printing a group
     * 
     * @param object Group $group 
     * @return void 
     * @access public
     * @ignore
     */
    function printGroup($group) {
        $id =$group->getId();
        $groupType =$group->getType();
 
        $harmoni = Harmoni::instance();
        $toggleURL = $harmoni->request->quickURL("agents","delete_group",
                array("groupId"=>$id->getIdString()));
 
        print "\n<input type='button' value='"._('delete')."' ";
        print " onclick=\"javascript:window.location='".$toggleURL."'\" />";
        print "\n<a title='".$groupType->getAuthority()." :: ".$groupType->getDomain()." :: ".$groupType->getKeyword()." - ".$groupType->getDescription()."'>";
        print "\n<span style='text-decoration: underline; font-weight: bold;'>".$id->getIdString()." - ".$group->getDisplayName()."</span></a>";
    }
 
    /**
     * Callback function for printing an agent
     * 
     * @param object Agent $member 
     * @return void 
     * @access public
     * @ignore
     */
    function printMember($member) {
        $id =$member->getId();
        $memberType =$member->getType();
        print "\n<a title='".$memberType->getDomain()." :: ".$memberType->getAuthority()." :: ".$memberType->getKeyword()." - ".$memberType->getDescription()."'>";
        print "\n<span style='text-decoration: underline;'>".$id->getIdString()." - ".$member->getDisplayName()."</span>";
 
        // print out the properties of the Agent
        print "\n<em>";
        $propertiesIterator =$member->getProperties();
        while($propertiesIterator->hasNext()) {
            $properties =$propertiesIterator->next();
            $propertiesType =$properties->getType();
            print "\n\t(<a title='".$propertiesType->getDomain()." :: ".$propertiesType->getAuthority()." :: ".$propertiesType->getKeyword()." - ".$propertiesType->getDescription()."'>";
 
            $keys =$properties->getKeys();
            $i = 0;
            while ($keys->hasNext()) {
                $key =$keys->next();            
                print "\n\t\t".(($i)?", ":"").$key.": ".$properties->getProperty($key);
                $i++;
            }
 
            print "\n\t</a>)";
        }
        print "\n</em>";
    }
}