forked from GNUsocial/gnu-social
100 lines
3.3 KiB
PHP
100 lines
3.3 KiB
PHP
<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Base class for sections showing lists of notices
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*
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* PHP version 5
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Widget
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2009 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET') && !defined('LACONICA')) {
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exit(1);
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}
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/**
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* Base class for sections showing lists of notices
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*
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* These are the widgets that show interesting data about a person
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* group, or site.
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*
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* @category Widget
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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class PopularNoticeSection extends NoticeSection
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{
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function getNotices()
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{
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if (common_config('db', 'type') == 'pgsql') {
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$weightexpr='sum(exp(-extract(epoch from (now() - fave.modified)) / %s))';
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if (!empty($this->out->tag)) {
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$tag = pg_escape_string($this->out->tag);
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}
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} else {
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$weightexpr='sum(exp(-(now() - fave.modified) / %s))';
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if (!empty($this->out->tag)) {
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$tag = mysql_escape_string($this->out->tag);
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}
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}
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$qry = "SELECT notice.*, $weightexpr as weight ";
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if(isset($tag)) {
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$qry .= 'FROM notice_tag, notice JOIN fave ON notice.id = fave.notice_id ' .
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"WHERE notice.id = notice_tag.notice_id and '$tag' = notice_tag.tag";
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} else {
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$qry .= 'FROM notice JOIN fave ON notice.id = fave.notice_id';
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}
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$qry .= ' GROUP BY notice.id,notice.profile_id,notice.content,notice.uri,' .
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'notice.rendered,notice.url,notice.created,notice.modified,' .
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'notice.reply_to,notice.is_local,notice.source,notice.conversation ' .
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'ORDER BY weight DESC';
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$offset = 0;
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$limit = NOTICES_PER_SECTION + 1;
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$qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
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$notice = Memcached_DataObject::cachedQuery('Notice',
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sprintf($qry, common_config('popular', 'dropoff')),
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1200);
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return $notice;
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}
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function title()
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{
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return _('Popular notices');
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}
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function divId()
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{
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return 'popular_notices';
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}
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function moreUrl()
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{
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return common_local_url('favorited');
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}
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}
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