gnu-social/lib/inboxnoticestream.php
Mikael Nordfeldth 4b2a66ed29 New mechanism for "all" feed (InboxNoticeStream)
Also cleaned up and made typing stricter for the stream, so only
profiles can be submitted. This reasonably also means we can create
"inbox" or "all" streams for foreign profiles as well using the same
stream handler (but of course only for messages we already know about).

To avoid looking up posts for a long time in a large notice database,
the lookback period for the inbox is no longer than the profile creation
date. (this matches the behaviour of Inbox)

Inbox class can probably be removed now.
2014-03-06 04:18:54 +01:00

151 lines
4.6 KiB
PHP

<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2011, StatusNet, Inc.
*
* Stream of notices for a profile's "all" feed
*
* 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 NoticeStream
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Mikael Nordfeldth <mmn@hethane.se>
* @copyright 2011 StatusNet, Inc.
* @copyright 2014 Free Software Foundation, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('GNUSOCIAL') && !defined('STATUSNET')) { exit(1); }
/**
* Stream of notices for a profile's "all" feed
*
* @category General
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Mikael Nordfeldth <mmn@hethane.se>
* @copyright 2011 StatusNet, Inc.
* @copyright 2014 Free Software Foundation, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class InboxNoticeStream extends ScopingNoticeStream
{
/**
* Constructor
*
* @param Profile $target Profile to get a stream for
* @param Profile $scoped Currently scoped profile (if null, it is fetched)
*/
function __construct(Profile $target, Profile $scoped=null)
{
if ($scoped === null) {
$scoped = Profile::current();
}
// Note: we don't use CachingNoticeStream since RawInboxNoticeStream
// uses Inbox::getKV(), which is cached.
parent::__construct(new RawInboxNoticeStream($target), $scoped);
}
}
/**
* Raw stream of notices for the target's inbox
*
* @category General
* @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 RawInboxNoticeStream extends NoticeStream
{
protected $target = null;
protected $inbox = null;
/**
* Constructor
*
* @param Profile $target Profile to get a stream for
*/
function __construct(Profile $target)
{
$this->target = $target;
}
/**
* Get IDs in a range
*
* @param int $offset Offset from start
* @param int $limit Limit of number to get
* @param int $since_id Since this notice
* @param int $max_id Before this notice
*
* @return Array IDs found
*/
function getNoticeIds($offset, $limit, $since_id, $max_id)
{
$notice = new Notice();
$notice->selectAdd();
$notice->selectAdd('id');
$notice->whereAdd(sprintf('notice.created > "%s"', $notice->escape($this->target->created)));
// Reply:: is a table of mentions
// Subscription:: is a table of subscriptions (every user is subscribed to themselves)
$notice->whereAdd(
sprintf('notice.id IN (SELECT notice_id FROM reply WHERE profile_id=%1$d) ' .
'OR notice.profile_id IN (SELECT subscribed FROM subscription WHERE subscriber=%d)', $this->target->id)
);
$notice->limit($offset, $limit);
$notice->orderBy('notice.created DESC');
if (!$notice->find()) {
return array();
}
$ids = $notice->fetchAll('id');
return $ids;
}
function getNotices($offset, $limit, $sinceId, $maxId)
{
$all = array();
do {
$ids = $this->getNoticeIds($offset, $limit, $sinceId, $maxId);
$notices = Notice::pivotGet('id', $ids);
// By default, takes out false values
$notices = array_filter($notices);
$all = array_merge($all, $notices);
if (count($notices < count($ids))) {
$offset += $limit;
$limit -= count($notices);
}
} while (count($notices) < count($ids) && count($ids) > 0);
return new ArrayWrapper($all);
}
}