forked from GNUsocial/gnu-social
109 lines
3.4 KiB
PHP
109 lines
3.4 KiB
PHP
<?php
|
|
/**
|
|
* StatusNet, the distributed open-source microblogging tool
|
|
*
|
|
* Personal tag cloud section
|
|
*
|
|
* PHP version 5
|
|
*
|
|
* LICENCE: This program 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.
|
|
*
|
|
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* @category Widget
|
|
* @package StatusNet
|
|
* @author Evan Prodromou <evan@status.net>
|
|
* @copyright 2009 StatusNet, Inc.
|
|
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
|
|
* @link http://status.net/
|
|
*/
|
|
|
|
if (!defined('STATUSNET') && !defined('LACONICA')) {
|
|
exit(1);
|
|
}
|
|
|
|
/**
|
|
* Group tag cloud section
|
|
*
|
|
* @category Widget
|
|
* @package StatusNet
|
|
* @author Evan Prodromou <evan@status.net>
|
|
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
|
|
* @link http://status.net/
|
|
*/
|
|
|
|
class GroupTagCloudSection extends TagCloudSection
|
|
{
|
|
var $group = null;
|
|
|
|
function __construct($out=null, $group=null)
|
|
{
|
|
parent::__construct($out);
|
|
$this->group = $group;
|
|
}
|
|
|
|
function title()
|
|
{
|
|
return sprintf(_('Tags in %s group\'s notices'), $this->group->nickname);
|
|
}
|
|
|
|
function getTags()
|
|
{
|
|
if (common_config('db', 'type') == 'pgsql') {
|
|
$weightexpr='sum(exp(-extract(epoch from (now() - notice_tag.created)) / %s))';
|
|
} else {
|
|
$weightexpr='sum(exp(-(now() - notice_tag.created) / %s))';
|
|
}
|
|
|
|
$names = $this->group->getAliases();
|
|
|
|
$names = array_merge(array($this->group->nickname), $names);
|
|
|
|
// XXX This is dumb.
|
|
|
|
$quoted = array();
|
|
|
|
foreach ($names as $name) {
|
|
$quoted[] = "'$name'";
|
|
}
|
|
|
|
$namestring = implode(',', $quoted);
|
|
|
|
$qry = 'SELECT notice_tag.tag, '.
|
|
$weightexpr . ' as weight ' .
|
|
'FROM notice_tag JOIN notice ' .
|
|
'ON notice_tag.notice_id = notice.id ' .
|
|
'JOIN group_inbox on group_inbox.notice_id = notice.id ' .
|
|
'WHERE group_inbox.group_id = %d ' .
|
|
'AND notice_tag.tag not in (%s) '.
|
|
'GROUP BY notice_tag.tag ' .
|
|
'ORDER BY weight DESC ';
|
|
|
|
$limit = TAGS_PER_SECTION;
|
|
$offset = 0;
|
|
|
|
if (common_config('db','type') == 'pgsql') {
|
|
$qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
|
|
} else {
|
|
$qry .= ' LIMIT ' . $offset . ', ' . $limit;
|
|
}
|
|
|
|
$tag = Memcached_DataObject::cachedQuery('Notice_tag',
|
|
sprintf($qry,
|
|
common_config('tag', 'dropoff'),
|
|
$this->group->id,
|
|
$namestring),
|
|
3600);
|
|
return $tag;
|
|
}
|
|
}
|