class.ilTimingCache.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 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/Object/classes/class.ilObjectActivation.php';
include_once 'Modules/Course/classes/Timings/class.ilTimingPlaned.php';

class ilTimingCache
{
        static function &_getTimings($a_ref_id)
        {
                static $cache = array();

                if(isset($cache[$a_ref_id]))
                {
                        return $cache[$a_ref_id];
                }
                $cache[$a_ref_id]['item'] = ilObjectActivation::getItem($a_ref_id);
                $cache[$a_ref_id]['user'] = ilTimingPlaned::_getPlanedTimingsByItem($a_ref_id);

                return $cache[$a_ref_id];
        }
                
        static function _showWarning($a_ref_id, $a_usr_id)
        {
                global $ilObjDataCache;
                
                $obj_id = $ilObjDataCache->lookupObjId($a_ref_id);
                                                                
                // if completed no warning
                include_once './Services/Tracking/classes/class.ilLPStatus.php';
                if(ilLPStatus::_hasUserCompleted($obj_id, $a_usr_id))
                {
                        return false;
                }
                
                // if editing time reached => show warning
                $timings =& ilTimingCache::_getTimings($a_ref_id);
                if($timings['item']['timing_type'] == ilObjectActivation::TIMINGS_PRESETTING)
                {
                        if($timings['item']['changeable'] and $timings['user'][$a_usr_id]['end'])
                        {
                                $end = $timings['user'][$a_usr_id]['end'];
                        }
                        else
                        {
                                $end = $timings['item']['suggestion_end'];
                        }
                        if($end < time())
                        {
                                return true;
                        }
                }

                include_once './Services/Object/classes/class.ilObjectLP.php';
                $olp = ilObjectLP::getInstance($obj_id);
                $collection = $olp->getCollectionInstance();    
        if($collection instanceof ilLPCollectionOfRepositoryObjects)
        {
                        foreach($collection->getItems() as $item)
                        {
                                if(ilTimingCache::_showWarning($item, $a_usr_id))
                                {
                                        return true;
                                }
                        }
                }
                
                // Really ???
                return false;
        }                       
}
?>