class.ilECSParticipantSettings.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. |
    +-----------------------------------------------------------------------------+
*/

class ilECSParticipantSettings
{
    private static $instances = null;

    private $export = array();
    private $import = array();
    private $export_type = array();
    
    private function __construct($a_server_id)
    {
        $this->server_id = $a_server_id;
        $this->read();
    }
    
    public static function _getInstance()
    {
        $GLOBALS['ilLog']->write(__METHOD__ . ': Using deprecated call');
        $GLOBALS['ilLog']->logStack();
        return self::getInstanceByServerId(15);
    }

    public static function getInstanceByServerId($a_server_id)
    {
        if (isset(self::$instances[$a_server_id])) {
            return self::$instances[$a_server_id];
        }
        return self::$instances[$a_server_id] = new ilECSParticipantSettings($a_server_id);
    }
    
    public static function getAvailabeMids($a_server_id)
    {
        global $ilDB;
        
        $query = 'SELECT mid FROM ecs_part_settings ' .
                'WHERE sid = ' . $ilDB->quote($a_server_id, 'integer');
        $res = $ilDB->query($query);
        
        $mids = array();
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $mids[] = $row->mid;
        }
        return $mids;
    }
    

    public static function getExportableParticipants($a_type)
    {
        global $ilDB;

        $query = 'SELECT sid,mid,export_types FROM ecs_part_settings ep ' .
            'JOIN ecs_server es ON ep.sid = es.server_id ' .
            'WHERE export = ' . $ilDB->quote(1, 'integer') . ' ' .
            'AND active = ' . $ilDB->quote(1, 'integer') . ' ' .
            'ORDER BY cname,es.title';
        
        $res = $ilDB->query($query);
        $mids = array();
        $counter = 0;
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            if (in_array($a_type, (array) unserialize($row->export_types))) {
                $mids[$counter]['sid'] = $row->sid;
                $mids[$counter]['mid'] = $row->mid;
                $counter++;
            }
        }
        return $mids;
    }

    public static function getExportServers()
    {
        global $ilDB;

        $query = 'SELECT DISTINCT(sid) FROM ecs_part_settings  ep ' .
            'JOIN ecs_server es ON ep.sid = es.server_id ' .
            'WHERE export = ' . $ilDB->quote(1, 'integer') . ' ' .
            'AND active = ' . $ilDB->quote(1, 'integer') . ' ';
        $res = $ilDB->query($query);
        $sids = array();
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $sids[] = $row->sid;
        }
        return $sids;
    }

    public static function deleteByServer($a_server_id)
    {
        global $ilDB;

        $query = 'DELETE from ecs_part_settings ' .
            'WHERE sid = ' . $ilDB->quote($a_server_id, 'integer');
        $ilDB->manipulate($query);
    }
    
    public static function loookupCmsMid($a_server_id)
    {
        global $ilDB;
        
        include_once './Services/WebServices/ECS/classes/class.ilECSParticipantSetting.php';
        
        $query = 'SELECT mid FROM ecs_part_settings ' .
                'WHERE sid = ' . $ilDB->quote($a_server_id, 'integer') . ' ' .
                'AND import_type = ' . $ilDB->quote(ilECSParticipantSetting::IMPORT_CMS);
        $res = $ilDB->query($query);
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            return $row->mid;
        }
        return 0;
    }

    public function getServerId()
    {
        return $this->server_id;
    }


    public function read()
    {
        global $ilDB;

        $query = 'SELECT * FROM ecs_part_settings ' .
            'WHERE sid = ' . $ilDB->quote($this->getServerId(), 'integer') . ' ';
        $res = $ilDB->query($query);
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $this->export[$row->mid] = $row->export;
            $this->import[$row->mid] = $row->import;
            $this->import_type[$row->mid] = $row->import_type;
            $this->export_types[$row->mid] = (array) unserialize($row->export_types);
            $this->import_types[$row->mid] = (array) unserialize($row->import_types);
        }
        return true;
    }

    public function isImportAllowed(array $a_mids)
    {
        foreach ($a_mids as $mid) {
            if ($this->import[$mid]) {
                return true;
            }
        }
        return false;
    }

    public function getEnabledParticipants()
    {
        $ret = array();
        foreach ($this->export as $mid => $enabled) {
            if ($enabled) {
                $ret[] = $mid;
            }
        }
        return $ret;
        #return $this->enabled ? $this->enabled : array();
    }
    
    public function isEnabled($a_mid)
    {
        return $this->export[$a_mid] ? true : false;
    }
    
    public function setEnabledParticipants($a_parts)
    {
        $this->enabled = (array) $a_parts;
    }
}