forked from GNUsocial/gnu-social
109 lines
3.1 KiB
PHP
109 lines
3.1 KiB
PHP
<?php
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/**
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2011, StatusNet, Inc.
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*
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* Stream of notices that reference an URL
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*
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* PHP version 5
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Stream
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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// This check helps protect against security problems;
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// your code file can't be executed directly from the web.
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exit(1);
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}
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class FileNoticeStream extends ScopingNoticeStream
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{
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function __construct($file, $profile = -1)
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{
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if (is_int($profile) && $profile == -1) {
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$profile = Profile::current();
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}
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parent::__construct(new CachingNoticeStream(new RawFileNoticeStream($file),
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'file:notice-ids:'.$file->id),
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$profile);
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}
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}
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/**
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* Raw stream for a file
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*
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* @category Stream
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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class RawFileNoticeStream extends NoticeStream
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{
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protected $file = null;
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function __construct($file)
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{
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$this->file = $file;
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}
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/**
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* Stream of notices linking to this URL
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*
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* @param integer $offset Offset to show; default is 0
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* @param integer $limit Limit of notices to show
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* @param integer $since_id Since this notice
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* @param integer $max_id Before this notice
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*
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* @return array ids of notices that link to this file
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*/
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function getNoticeIds($offset, $limit, $since_id, $max_id)
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{
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$f2p = new File_to_post();
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$f2p->selectAdd();
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$f2p->selectAdd('post_id');
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$f2p->file_id = $this->file->id;
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Notice::addWhereSinceId($f2p, $since_id, 'post_id', 'modified');
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Notice::addWhereMaxId($f2p, $max_id, 'post_id', 'modified');
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$f2p->orderBy('modified DESC, post_id DESC');
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if (!is_null($offset)) {
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$f2p->limit($offset, $limit);
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}
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$ids = array();
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if ($f2p->find()) {
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while ($f2p->fetch()) {
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$ids[] = $f2p->post_id;
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}
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}
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return $ids;
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}
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}
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