class.ilSearchCommandQueue.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program is free software; you can redistribute it and/or               |
        | modify it under the terms of the GNU General Public License                 |
        | as published by the Free Software Foundation; either version 2              |
        | 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 General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/
 
include_once './Services/Search/classes/class.ilSearchCommandQueueElement.php';
class ilSearchCommandQueue
{
        private static $instance = null;
 
 
        protected function __construct()
        {
                
        }
        
        public function factory()
        {
                if(isset(self::$instance) and self::$instance)
                {
                        return self::$instance;
                }
                return self::$instance = new ilSearchCommandQueue();
        }
        
        public function store(ilSearchCommandQueueElement $element)
        {
                global $ilDB;
                
                $query = "SELECT obj_id, obj_type FROM search_command_queue ".
                        "WHERE obj_id = ".$ilDB->quote($element->getObjId() ,'integer')." ".
                        "AND obj_type = ".$ilDB->quote($element->getObjType() ,'text');
                $res = $ilDB->query($query);
                if($res->numRows())
                {
                        $this->update($element);
                }
                else
                {
                        $this->insert($element);
                }
        }
        
        protected function insert(ilSearchCommandQueueElement $element)
        {
                global $ilDB;
                
                $query = "INSERT INTO search_command_queue (obj_id,obj_type,sub_id,sub_type,command,last_update,finished) ".
                        "VALUES( ".
                        $ilDB->quote($element->getObjId() ,'integer').", ".
                        $ilDB->quote($element->getObjType() ,'text').", ".
                        "0, ".
                        "'',".
                        $ilDB->quote($element->getCommand() ,'text').", ".
                        $ilDB->now().", ".
                        "0 ".
                        ")";
                $res = $ilDB->manipulate($query);
                return true;
        }
        
        protected function update(ilSearchCommandQueueElement $element)
        {
                global $ilDB;
                
                $query = "UPDATE search_command_queue ".
                        "SET command = ".$ilDB->quote($element->getCommand() ,'text').", ".
                        "last_update = ".$ilDB->now().", ".
                        "finished = ".$ilDB->quote(0 ,'integer')." ".
                        "WHERE obj_id = ".$ilDB->quote($element->getObjId() ,'integer')." ".
                        "AND obj_type = ".$ilDB->quote($element->getObjType() ,'text');
                $res = $ilDB->manipulate($query);
                return true;
        }
        
        
        
        
}
?>