3 * StatusNet - the distributed open-source microblogging tool
4 * Copyright (C) 2011, StatusNet, Inc.
6 * Notice stream that's good for threading lists
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU Affero General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Affero General Public License for more details.
20 * You should have received a copy of the GNU Affero General Public License
21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
23 * @category Notice stream
25 * @author Evan Prodromou <evan@status.net>
26 * @copyright 2011 StatusNet, Inc.
27 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
28 * @link http://status.net/
31 if (!defined('STATUSNET')) {
32 // This check helps protect against security problems;
33 // your code file can't be executed directly from the web.
38 * This notice stream filters notices by whether their conversation
39 * has been seen before. It's a good (well, OK) way to get streams
40 * for a ThreadedNoticeList display.
42 * @category Notice stream
44 * @author Evan Prodromou <evan@status.net>
45 * @copyright 2011 StatusNet, Inc.
46 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
47 * @link http://status.net/
50 class ThreadingNoticeStream extends FilteringNoticeStream
52 protected $seen = array();
54 function getNotices($offset, $limit, $sinceId=null, $maxId=null)
56 // Clear this each time we're called
57 $this->seen = array();
58 return parent::getNotices($offset, $limit, $sinceId, $maxId);
61 function filter($notice)
63 if (!array_key_exists($notice->conversation, $this->seen)) {
64 $this->seen[$notice->conversation] = true;