gnu-social/lib/peopletagnoticestream.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2011, StatusNet, Inc.
*
* Stream of notices for a people tag
*
* 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);
}
/**
* Stream of notices for a people tag
*
* @category Stream
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Shashi Gowda <connect2shashi@gmail.com>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class PeopletagNoticeStream extends ScopingNoticeStream
{
function __construct($plist, $profile = -1)
{
if (is_int($profile) && $profile == -1) {
$profile = Profile::current();
}
parent::__construct(new CachingNoticeStream(new RawPeopletagNoticeStream($plist),
'profile_tag:notice_ids:' . $plist->id),
$profile);
}
}
/**
* Stream of notices for a people tag
*
* @category Stream
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Shashi Gowda <connect2shashi@gmail.com>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class RawPeopletagNoticeStream extends NoticeStream
{
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protected $profile_list;
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function __construct($profile_list)
{
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$this->profile_list = $profile_list;
}
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/**
* Query notices by users associated with this tag from the database.
*
* @param integer $offset offset
* @param integer $limit maximum no of results
* @param integer $since_id=null since this id
* @param integer $max_id=null maximum id in result
*
* @return array array of notice ids.
*/
function getNoticeIds($offset, $limit, $since_id, $max_id)
{
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$notice = new Notice();
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$notice->selectAdd();
$notice->selectAdd('notice.id');
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$ptag = new Profile_tag();
$ptag->tag = $this->profile_list->tag;
$ptag->tagger = $this->profile_list->tagger;
$notice->joinAdd($ptag);
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if ($since_id != 0) {
$notice->whereAdd('notice.id > ' . $since_id);
}
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if ($max_id != 0) {
$notice->whereAdd('notice.id <= ' . $max_id);
}
$notice->orderBy('notice.id DESC');
if (!is_null($offset)) {
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$notice->limit($offset, $limit);
}
$ids = array();
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if ($notice->find()) {
while ($notice->fetch()) {
$ids[] = $notice->id;
}
}
return $ids;
}
}