3 * Laconica, the distributed open-source microblogging tool
5 * Base class for sections showing lists of notices
9 * LICENCE: This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU Affero General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Affero General Public License for more details.
19 * You should have received a copy of the GNU Affero General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * @author Evan Prodromou <evan@controlyourself.ca>
25 * @copyright 2009 Control Yourself, Inc.
26 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
27 * @link http://laconi.ca/
30 if (!defined('LACONICA')) {
34 define('NOTICES_PER_SECTION', 6);
37 * Base class for sections showing lists of notices
39 * These are the widgets that show interesting data about a person
44 * @author Evan Prodromou <evan@controlyourself.ca>
45 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
46 * @link http://laconi.ca/
49 class PopularNoticeSection extends NoticeSection
53 $qry = 'SELECT notice.*, '.
54 'sum(exp(-(now() - fave.modified) / %s)) as weight ' .
55 'FROM notice JOIN fave ON notice.id = fave.notice_id ' .
56 'GROUP BY fave.notice_id ' .
57 'ORDER BY weight DESC';
60 $limit = NOTICES_PER_SECTION + 1;
62 if (common_config('db', 'type') == 'pgsql') {
63 $qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
65 $qry .= ' LIMIT ' . $offset . ', ' . $limit;
68 $notice = Memcached_DataObject::cachedQuery('Notice',
69 sprintf($qry, common_config('popular', 'dropoff')),
76 return _('Popular notices');
81 return 'popular_notices';