92 lines
2.5 KiB
PHP
92 lines
2.5 KiB
PHP
<?php
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// This file is part of GNU social - https://www.gnu.org/software/social
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//
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// GNU social 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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// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Stream of notices sorted by popularity
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*
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* @category Popular
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* @package GNUsocial
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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defined('GNUSOCIAL') || die();
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/**
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* Stream of notices sorted by popularity
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*
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* @category Popular
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* @package GNUsocial
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
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*/
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class PopularNoticeStream extends ScopingNoticeStream
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{
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public function __construct(Profile $scoped=null)
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{
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parent::__construct(
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new CachingNoticeStream(
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new RawPopularNoticeStream(),
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'popular',
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false
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),
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$scoped
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);
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}
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}
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class RawPopularNoticeStream extends NoticeStream
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{
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public function getNoticeIds($offset, $limit, $since_id, $max_id)
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{
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$weightexpr = common_sql_weight(
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'modified',
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common_config('popular', 'dropoff')
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);
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$cutoff = sprintf(
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"modified > CURRENT_TIMESTAMP - INTERVAL '%d' SECOND",
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common_config('popular', 'cutoff')
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);
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$fave = new Fave();
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$fave->selectAdd();
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$fave->selectAdd('notice_id');
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$fave->selectAdd("{$weightexpr} AS weight");
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$fave->whereAdd($cutoff);
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$fave->groupBy('notice_id');
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$fave->orderBy('weight DESC');
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if (!is_null($offset)) {
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$fave->limit($offset, $limit);
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}
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// FIXME: $since_id, $max_id are ignored
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$ids = array();
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if ($fave->find()) {
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while ($fave->fetch()) {
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$ids[] = $fave->notice_id;
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}
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}
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return $ids;
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}
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}
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