gnu-social/plugins/SlicedFavorites/actions/favoritedslice.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* List 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 Public
* @package StatusNet
* @author Zach Copley <zach@status.net>
* @author Evan Prodromou <evan@status.net>
* @copyright 2008-2009 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);
}
class FavoritedSliceAction extends FavoritedAction
{
private $includeUsers = array(), $excludeUsers = array();
/**
* Take arguments for running
*
* @param array $args $_REQUEST args
*
* @return boolean success flag
*
* @todo move queries from showContent() to here
*/
function prepare(array $args = array())
{
parent::prepare($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
*/
function showContent()
{
$slice = $this->sliceWhereClause();
if (!$slice) {
return parent::showContent();
}
$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 ' .
'FROM notice JOIN fave ON notice.id = fave.notice_id ' .
"WHERE $cutoff AND $slice " .
'GROUP BY id,profile_id,uri,content,rendered,url,created,notice.modified,reply_to,is_local,source,notice.conversation ' .
'ORDER BY weight DESC';
$offset = ($this->page - 1) * NOTICES_PER_PAGE;
$limit = NOTICES_PER_PAGE + 1;
if (common_config('db', 'type') == 'pgsql') {
$qry .= ' LIMIT ' . $limit . ' OFFSET ' . $offset;
} else {
$qry .= ' LIMIT ' . $offset . ', ' . $limit;
}
$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);
if (count($include) == 1) {
return "profile_id = " . intval($include[0]);
} else if (count($include) > 1) {
return "profile_id IN (" . implode(',', $include) . ")";
} else if (count($exclude) == 1) {
return "profile_id != " . intval($exclude[0]);
} else if (count($exclude) > 1) {
return "profile_id NOT IN (" . implode(',', $exclude) . ")";
} else {
return 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;
}
}