92 lines
3.4 KiB
PHP
92 lines
3.4 KiB
PHP
<?php
|
|
/**
|
|
* StatusNet, the distributed open-source microblogging tool
|
|
*
|
|
* Wrapper for fetching lists of popular notices.
|
|
*
|
|
* 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>
|
|
* @author Brion Vibber <brion@status.net>
|
|
* @copyright 2010 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);
|
|
}
|
|
|
|
/**
|
|
* Wrapper for fetching notices ranked according to popularity,
|
|
* broken out so it can be called from multiple actions with
|
|
* less code duplication.
|
|
*/
|
|
class Popularity
|
|
{
|
|
public $limit = NOTICES_PER_PAGE;
|
|
public $offset = 0;
|
|
public $tag = false;
|
|
public $expiry = 600;
|
|
|
|
/**
|
|
* Run a cached query to fetch notices, whee!
|
|
*
|
|
* @return Notice
|
|
*/
|
|
function getNotices()
|
|
{
|
|
// @fixme there should be a common func for this
|
|
if (common_config('db', 'type') == 'pgsql') {
|
|
if (!empty($this->tag)) {
|
|
$tag = pg_escape_string($this->tag);
|
|
}
|
|
} else {
|
|
if (!empty($this->tag)) {
|
|
$tag = mysql_escape_string($this->tag);
|
|
}
|
|
}
|
|
$weightexpr = common_sql_weight('fave.modified', common_config('popular', 'dropoff'));
|
|
$cutoff = sprintf("fave.modified > '%s'",
|
|
common_sql_date(time() - common_config('popular', 'cutoff')));
|
|
$qry = "SELECT notice.*, $weightexpr as weight ";
|
|
if(isset($tag)) {
|
|
$qry .= 'FROM notice_tag, notice JOIN fave ON notice.id = fave.notice_id ' .
|
|
"WHERE $cutoff and notice.id = notice_tag.notice_id and '$tag' = notice_tag.tag";
|
|
} else {
|
|
$qry .= 'FROM notice JOIN fave ON notice.id = fave.notice_id ' .
|
|
"WHERE $cutoff";
|
|
}
|
|
$qry .= ' GROUP BY notice.id,notice.profile_id,notice.content,notice.uri,' .
|
|
'notice.rendered,notice.url,notice.created,notice.modified,' .
|
|
'notice.reply_to,notice.is_local,notice.source,notice.conversation, ' .
|
|
'notice.lat,notice.lon,location_id,location_ns,notice.repeat_of';
|
|
$qry .= ' HAVING \'silenced\' NOT IN (SELECT role FROM profile_role WHERE profile_id=notice.profile_id)';
|
|
$qry .= ' ORDER BY weight DESC';
|
|
|
|
$offset = $this->offset;
|
|
$limit = $this->limit + 1;
|
|
|
|
$qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
|
|
|
|
$notice = Memcached_DataObject::cachedQuery('Notice',
|
|
$qry,
|
|
1200);
|
|
return $notice;
|
|
}
|
|
} |