class.ilCalendarRecurrences.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/Calendar/classes/class.ilCalendarRecurrence.php');

class ilCalendarRecurrences
{
    public static function _getRecurrences($a_cal_id)
    {
        global $DIC;

        $ilDB = $DIC['ilDB'];
        
        $query = "SELECT rule_id FROM cal_recurrence_rules " .
            "WHERE cal_id = " . $ilDB->quote($a_cal_id, 'integer') . " ";
        $res = $ilDB->query($query);
        $recurrences = [];
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $recurrences[] = new ilCalendarRecurrence($row->rule_id);
        }
        return $recurrences;
    }
    
    public static function _getFirstRecurrence($a_cal_id)
    {
        if ($recs = self::_getRecurrences($a_cal_id)) {
            return $recs[0];
        }
        $new_rec = new ilCalendarRecurrence();
        $new_rec->setEntryId($a_cal_id);
        return $new_rec;
    }
}