<?php
# License:
# Copyright (c) 2009, Open Source Geospatial Foundation
# This program is dual licensed under the GNU General Public License 
# and Simplified BSD license.  
# http://svn.osgeo.org/mapbender/trunk/mapbender/license/license.txt

require_once(dirname(__FILE__)."/../../core/globalSettings.php");
require_once(dirname(__FILE__)."/../classes/class_group.php");

/**
 * A Mapbender user as described in the table mb_group.
 */
abstract class GroupById extends Group implements RPCObject {
	public static $mb_group_id;

	public function __construct () {
		$this->id = self::$mb_group_id;
		try{
			$this->load();
		}
		catch(Exception $e) {
			new mb_exception($e->getMessage());
			return;
		}
	}
	
	public function create () {
		if ($this->exists()) {
			return false;
		}
		return parent::create();
	}
	
	public static function getList($filter) {
		return array($this);
    }

	public function isValid () {
		if (!is_null($this->name) && $this->id === self::$mb_group_id) {
			return true;
		}
		new mb_exception("Group with ID " . $this->id . " does not exist.");
		return false;
	}
	
	public static function byName($name) {
		if($name === $this->name) { 
			return $this;
		}
		return null;
	}
	
	public static function getGroupsByUser ($id) {
		$user = new User($id);
		if (!$user->isValid()) {
			new mb_exception("User ID " . $id . " invalid.");
			return array();		
		}
		$groups = $user->getGroupsByUser();
		if (!is_array($groups)) {
			new mb_notice("User " . $id . " is not member in any group.");
			return array();
		}
		new mb_notice("User " . $id . " is member of " . count($groups) . " groups.");
		
		if (in_array(self::$mb_group_id, $groups)) {
			return array(self::$mb_group_id);
		}
			
		return array();
	}
}
?>