3 * StatusNet - the distributed open-source microblogging tool
4 * Copyright (C) 2011, StatusNet, Inc.
6 * Stream of notices sorted by popularity
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/>.
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 * Stream of notices sorted by popularity
42 * @author Evan Prodromou <evan@status.net>
43 * @copyright 2011 StatusNet, Inc.
44 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
45 * @link http://status.net/
48 class PopularNoticeStream extends ScopingNoticeStream
50 function __construct($profile=null)
52 parent::__construct(new CachingNoticeStream(new RawPopularNoticeStream(),
59 class RawPopularNoticeStream extends NoticeStream
61 function getNoticeIds($offset, $limit, $since_id, $max_id)
63 $weightexpr = common_sql_weight('modified', common_config('popular', 'dropoff'));
64 $cutoff = sprintf("modified > '%s'",
65 common_sql_date(time() - common_config('popular', 'cutoff')));
69 $fave->selectAdd('notice_id');
70 $fave->selectAdd("$weightexpr as weight");
71 $fave->whereAdd($cutoff);
72 $fave->orderBy('weight DESC');
73 $fave->groupBy('notice_id');
75 if (!is_null($offset)) {
76 $fave->limit($offset, $limit);
79 // FIXME: $since_id, $max_id are ignored
84 while ($fave->fetch()) {
85 $ids[] = $fave->notice_id;