course/classes/Event/class.ilEventItems.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. |
        +-----------------------------------------------------------------------------+
*/


class ilEventItems
{
        var $ilErr;
        var $ilDB;
        var $tree;
        var $lng;

        var $event_id = null;
        var $items = array();


        function ilEventItems($a_event_id)
        {
                global $ilErr,$ilDB,$lng,$tree;

                $this->ilErr =& $ilErr;
                $this->db  =& $ilDB;
                $this->lng =& $lng;

                $this->event_id = $a_event_id;
                $this->__read();
        }

        function getEventId()
        {
                return $this->event_id;
        }
        function setEventId($a_event_id)
        {
                $this->event_id = $a_event_id;
        }
        function getItems()
        {
                return $this->items ? $this->items : array();
        }
        function setItems($a_items)
        {
                $this->items = array();
                foreach($a_items as $item_id)
                {
                        $this->items[] = (int) $item_id;
                }
        }
        function delete()
        {
                return ilEventItems::_delete($this->getEventId());
        }
        function _delete($a_event_id)
        {
                global $ilDB;

                $query = "DELETE FROM event_items ".
                        "WHERE event_id = '".$a_event_id."'";
                $ilDB->query($query);
                return true;
        }
        function update()
        {
                $this->delete();
                
                foreach($this->items as $item)
                {
                        $query = "INSERT INTO event_items ".
                                "SET event_id = '".$this->getEventId()."', ".
                                "item_id = '".$item."'";
                        $this->db->query($query);
                }
                return true;
        }
        
        function _getItemsOfContainer($a_obj_id)
        {
                global $ilDB;

                $query = "SELECT * FROM event AS e ".
                        "JOIN event_items AS ei ON e.event_id = ei.event_id ".
                        "WHERE obj_id = '".$a_obj_id."'";

                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $items[] = $row->item_id;
                }
                return $items ? $items : array();
        }

        function _isAssigned($a_item_id)
        {
                global $ilDB;

                $query = "SELECT * FROM event_items ".
                        "WHERE item_id = '".$a_item_id."'";
                $res = $ilDB->query($query);

                return $res->numRows() ? true : false;
        }


        // PRIVATE
        function __read()
        {
                $query = "SELECT * FROM event_items ".
                        "WHERE event_id = '".$this->getEventId()."'";

                $res = $this->db->query($query);
                $this->items = array();
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        $this->items[] = (int) $row->item_id;
                }
                return true;
        }
                
}
?>