forked from GNUsocial/gnu-social
118 lines
3.4 KiB
PHP
118 lines
3.4 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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* Public tag cloud section
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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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* Public tag cloud section
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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 PublicTagCloudSection extends TagCloudSection
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{
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function __construct($out=null)
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{
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parent::__construct($out);
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}
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function title()
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{
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// TRANS: Title for inbox tag cloud section.
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return _m('TITLE', 'Trends');
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}
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function getTags()
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{
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$profile = Profile::current();
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if (empty($profile)) {
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$keypart = sprintf('Notice:public_tag_cloud:null');
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} else {
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$keypart = sprintf('Notice:public_tag_cloud:%d', $profile->id);
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}
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$tag = Memcached_DataObject::cacheGet($keypart);
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if ($tag === false) {
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$stream = new PublicNoticeStream($profile);
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$ids = $stream->getNoticeIds(0, 500, null, null);
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if (empty($ids)) {
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$tag = array();
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} else {
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$weightexpr = common_sql_weight('notice_tag.created', common_config('tag', 'dropoff'));
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// @fixme should we use the cutoff too? Doesn't help with indexing per-user.
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$qry = 'SELECT notice_tag.tag, '.
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$weightexpr . ' as weight ' .
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'FROM notice_tag JOIN notice ' .
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'ON notice_tag.notice_id = notice.id ' .
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'WHERE notice.id in (' . implode(',', $ids) . ') '.
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'GROUP BY notice_tag.tag ' .
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'ORDER BY weight DESC ';
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$limit = TAGS_PER_SECTION;
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$offset = 0;
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if (common_config('db','type') == 'pgsql') {
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$qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
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} else {
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$qry .= ' LIMIT ' . $offset . ', ' . $limit;
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}
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$t = new Notice_tag();
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$t->query($qry);
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$tag = array();
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while ($t->fetch()) {
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$tag[] = clone($t);
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}
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}
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Memcached_DataObject::cacheSet($keypart, $tag, 60 * 60 * 24);
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}
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return new ArrayWrapper($tag);
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}
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function showMore()
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{
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}
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}
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