gnu-social/lib/favenoticestream.php
Evan Prodromou 84984fdbfe All notice streams check notice scope
Added filtering code so that notice streams check notice scope.

Added new class to implement filtering a stream, FilteringNoticeStream.

Added a subclass that does the logic for checking Notice scope.

And made all the streams use ScopingNoticeStream.
2011-03-25 12:22:22 -04:00

143 lines
3.8 KiB
PHP

<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2011, StatusNet, Inc.
*
* Notice stream for favorites
*
* PHP version 5
*
* 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 Stream
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
// This check helps protect against security problems;
// your code file can't be executed directly from the web.
exit(1);
}
/**
* Notice stream for favorites
*
* @category Stream
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class FaveNoticeStream extends ScopingNoticeStream
{
function __construct($user_id, $own)
{
$stream = new RawFaveNoticeStream($user_id, $own);
if ($own) {
$key = 'fave:ids_by_user_own:'.$user_id;
} else {
$key = 'fave:ids_by_user:'.$user_id;
}
parent::__construct(new CachingNoticeStream($stream, $key));
}
}
/**
* Raw notice stream for favorites
*
* @category Stream
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class RawFaveNoticeStream extends NoticeStream
{
protected $user_id;
protected $own;
function __construct($user_id, $own)
{
$this->user_id = $user_id;
$this->own = $own;
}
/**
* Note that the sorting for this is by order of *fave* not order of *notice*.
*
* @fixme add since_id, max_id support?
*
* @param <type> $user_id
* @param <type> $own
* @param <type> $offset
* @param <type> $limit
* @param <type> $since_id
* @param <type> $max_id
* @return <type>
*/
function getNoticeIds($offset, $limit, $since_id, $max_id)
{
$fav = new Fave();
$qry = null;
if ($this->own) {
$qry = 'SELECT fave.* FROM fave ';
$qry .= 'WHERE fave.user_id = ' . $this->user_id . ' ';
} else {
$qry = 'SELECT fave.* FROM fave ';
$qry .= 'INNER JOIN notice ON fave.notice_id = notice.id ';
$qry .= 'WHERE fave.user_id = ' . $this->user_id . ' ';
$qry .= 'AND notice.is_local != ' . Notice::GATEWAY . ' ';
}
if ($since_id != 0) {
$qry .= 'AND notice_id > ' . $since_id . ' ';
}
if ($max_id != 0) {
$qry .= 'AND notice_id <= ' . $max_id . ' ';
}
// NOTE: we sort by fave time, not by notice time!
$qry .= 'ORDER BY modified DESC ';
if (!is_null($offset)) {
$qry .= "LIMIT $limit OFFSET $offset";
}
$fav->query($qry);
$ids = array();
while ($fav->fetch()) {
$ids[] = $fav->notice_id;
}
$fav->free();
unset($fav);
return $ids;
}
}