<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

/*
* Helper class for local user accounts (in categories)
*
* @author Stefan Meyer <meyer@leifos.com>
* @version $Id: class.ilLocalUser.php 28582 2011-04-19 08:58:59Z smeyer $
*
*/

class ilLocalUser
{
	var $db;
	
	var $parent_id;
		
	/**
	* Constructor
	* @access	public
	* @param	string	scriptname
	* @param    int user_id
	*/
	function ilLocalUser($a_parent_id)
	{
		global $ilDB;

		$this->db =& $ilDB;
		$this->parent_id = $a_parent_id;
		
	}

	function setParentId($a_parent_id)
	{
		$this->parent_id = $a_parent_id;
	}
	function getParentId()
	{
		return $this->parent_id;
	}

	// STATIC
	function _getUserData($a_filter)
	{
		include_once './Services/User/classes/class.ilObjUser.php';

		$users_data = ilObjUser::_getAllUserData(array("login","firstname","lastname","time_limit_owner"),-1);

		foreach($users_data as $usr_data)
		{
			if(!$a_filter or $a_filter == $usr_data['time_limit_owner'])
			{
				$users[] = $usr_data;
			}
		}
		return $users ? $users : array();
	}

	public static function _getFolderIds()
	{
		global $ilDB,$rbacsystem;

		$query = "SELECT DISTINCT(time_limit_owner) as parent_id FROM usr_data ";

		$res = $ilDB->query($query);
		while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
		{
			// Workaround for users with time limit owner "0". 
			if(!$row->parent_id)
			{
				if($rbacsystem->checkAccess('read_users',USER_FOLDER_ID))
				{
					$parent[] = $row->parent_id;
				}
				continue;
			}

			if($rbacsystem->checkAccess('read_users',$row->parent_id) or $rbacsystem->checkAccess('cat_administrate_users',$row->parent_id))
			{
				if($row->parent_id)
				{
					$parent[] = $row->parent_id;
				}
			}
		}
		return $parent ? $parent : array();
	}
	function _getAllUserIds($a_filter = 0)
	{
		global $ilDB;
		switch($a_filter)
		{
			case 0:
				if(ilLocalUser::_getFolderIds())
				{
					$where = "WHERE ".$ilDB->in("time_limit_owner", ilLocalUser::_getFolderIds(), false, "integer")." ";
					//$where .= '(';
					//$where .= implode(",",ilUtil::quoteArray(ilLocalUser::_getFolderIds()));
					//$where .= ')';

				}
				else
				{
					//$where = "WHERE time_limit_owner IN ('')";
					return array();
				}

				break;

			default:
				$where = "WHERE time_limit_owner = ".$ilDB->quote($a_filter, "integer")." ";

				break;
		}
		
		$query = "SELECT usr_id FROM usr_data ".$where;
		$res = $ilDB->query($query);

		while($row = $ilDB->fetchObject($res))
		{
			$users[] = $row->usr_id;
		}

		return $users ? $users : array();
	}

	function _getUserFolderId()
	{
		return 7;
	}
		
			

		

} // CLASS ilLocalUser
?>
