<?php
/*
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2008 Bharat Mediratta
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * $Id: UserDB.php 17806 2008-08-06 16:16:29Z JensT $
 */

if (! class_exists('Abstract_UserDB')) {
	exit;
}

class PostNuke_UserDB extends Abstract_UserDB {
	var $db;
	var $prefix;

	function PostNuke_UserDB() {
		$this->nobody = new NobodyUser();
		$this->everybody = new EverybodyUser();
		$this->loggedIn = new LoggedInUser();
	}

	function getUidList() {
		global $GALLERY_POSTNUKE_VERSION;
		$uidList = array();

		if (substr($GALLERY_POSTNUKE_VERSION, 0, 7) < "0.7.5.0") {
			list($dbconn) = pnDBGetConn();
			$pntable = pnDBGetTables();
		} else {
			$dbconn =& pnDBGetConn(true);
			$pntable =& pnDBGetTables();
		}

		$userstable = $pntable['users'];
		$userscolumn = &$pntable['users_column'];

		$sql = "SELECT $userscolumn[uid] FROM $userstable";
		$result = $dbconn->Execute($sql);

		while(!$result->EOF) {
			list($uid) = $result->fields;
			$uidList[] = $uid;
			$result->MoveNext();
		}

		$result->Close();

		array_push($uidList, $this->nobody->getUid());
		array_push($uidList, $this->everybody->getUid());
		array_push($uidList, $this->loggedIn->getUid());

		sort($uidList);
		return $uidList;
	}

	function getUserByUsername($username) {
		if (!strcmp($username, $this->nobody->getUsername())) {
			return $this->nobody;
		} else if (!strcmp($username, $this->everybody->getUsername())) {
			return $this->everybody;
		} else if (!strcmp($username, $this->loggedIn->getUsername())) {
			return $this->loggedIn;
		}

		$user = new PostNuke_User();
		$user->loadByUsername($username);
		return $user;
	}

	function getUserByUid($uid) {
		if (!$uid || !strcmp($uid, $this->nobody->getUid())) {
			return $this->nobody;
		} else if (!strcmp($uid, $this->everybody->getUid())) {
			return $this->everybody;
		} else if (!strcmp($uid, $this->loggedIn->getUid())) {
			return $this->loggedIn;
		}

		$user = new PostNuke_User();
		$user->loadByUid($uid);
		return $user;
	}
}

?>
