<?php // This file is part of GNU social - https://www.gnu.org/software/social // // GNU social is free software: you can redistribute it and/or modify // it under the terms of the GNU Affero General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // GNU social is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU Affero General Public License for more details. // // You should have received a copy of the GNU Affero General Public License // along with GNU social. If not, see <http://www.gnu.org/licenses/>. /** * List of popular notices * * @category Public * @package GNUsocial * @author Zach Copley <zach@status.net> * @author Evan Prodromou <evan@status.net> * @copyright 2008-2009 StatusNet, Inc. * @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later */ defined('GNUSOCIAL') || die(); class FavoritedSliceAction extends FavoritedAction { private $includeUsers = []; private $excludeUsers = []; /** * Take arguments for running * * @param array $args $_REQUEST args * * @return boolean success flag * * @todo move queries from showContent() to here */ public function prepare(array $args = []) { parent::prepare($args); $this->slice = $this->arg('slice', 'default'); $data = array(); if (Event::handle('SlicedFavoritesGetSettings', array($this->slice, &$data))) { // TRANS: Client exception. throw new ClientException(_m('Unknown favorites slice.')); } if (isset($data['include'])) { $this->includeUsers = $data['include']; } if (isset($data['exclude'])) { $this->excludeUsers = $data['exclude']; } return true; } /** * Content area * * Shows the list of popular notices * * @return void */ public function showContent() { $slice = $this->sliceWhereClause(); if (!$slice) { return parent::showContent(); } $weightexpr = common_sql_weight('fave.modified', common_config('popular', 'dropoff')); $cutoff = sprintf( "fave.modified > CURRENT_TIMESTAMP - INTERVAL '%d' SECOND", common_config('popular', 'cutoff') ); $offset = ($this->page - 1) * NOTICES_PER_PAGE; $limit = NOTICES_PER_PAGE + 1; $qry = <<<END SELECT * FROM notice INNER JOIN ( SELECT notice.id, {$weightexpr} AS weight FROM notice INNER JOIN fave ON notice.id = fave.notice_id WHERE {$cutoff} AND {$slice} GROUP BY notice.id ) AS t1 USING (id) ORDER BY weight DESC LIMIT {$limit} OFFSET {$offset}; END; $notice = Memcached_DataObject::cachedQuery('Notice', $qry, 600); $nl = new NoticeList($notice, $this); $cnt = $nl->show(); if ($cnt == 0) { $this->showEmptyList(); } $this->pagination( $this->page > 1, $cnt > NOTICES_PER_PAGE, $this->page, 'favorited' ); } private function sliceWhereClause() { $include = $this->nicknamesToIds($this->includeUsers); $exclude = $this->nicknamesToIds($this->excludeUsers); $sql = []; if (count($include) > 0) { $sql[] = 'notice.profile_id IN (' . implode(',', $include) . ')'; } if (count($exclude) > 0) { $sql[] = 'notice.profile_id NOT IN (' . implode(',', $exclude) . ')'; } return implode(' AND ', $sql) ?: false; } /** * * @param array $nicks array of user nicknames * @return array of profile/user IDs */ private function nicknamesToIds($nicks) { $ids = array(); foreach ($nicks as $nick) { // not the most efficient way for a big list! $user = User::getKV('nickname', $nick); if ($user) { $ids[] = intval($user->id); } } return $ids; } }