71 lines
		
	
	
		
			2.2 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			71 lines
		
	
	
		
			2.2 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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 * Notice stream that's good for threading lists
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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  Notice 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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/**
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 * This notice stream filters notices by whether their conversation
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 * has been seen before. It's a good (well, OK) way to get streams
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 * for a ThreadedNoticeList display.
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 *
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 * @category  Notice 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 ThreadingNoticeStream extends FilteringNoticeStream
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{
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    protected $seen = array();
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    function getNotices($offset, $limit, $sinceId=null, $maxId=null)
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    {
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        // Clear this each time we're called
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        $this->seen = array();
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        return parent::getNotices($offset, $limit, $sinceId, $maxId);
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    }
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    function filter($notice)
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    {
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        if (!array_key_exists($notice->conversation, $this->seen)) {
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            $this->seen[$notice->conversation] = true;
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            return true;
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        } else {
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            return false;
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        }
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    }
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}
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