Services/Tracking/classes/class.ilLPEventCollections.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 ilLPEventCollections
{
        var $db = null;

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

        function ilLPEventCollections($a_obj_id)
        {
                global $ilObjDataCache,$ilDB;

                $this->db =& $ilDB;

                $this->obj_id = $a_obj_id;

                $this->__read();
        }

        function getObjId()
        {
                return (int) $this->obj_id;
        }

        function getItems()
        {
                return $this->items;
        }

        function isAssigned($a_obj_id)
        {
                return (bool) in_array($a_obj_id,$this->items);
        }

        function add($item_id)
        {
                if($this->isAssigned($item_id))
                {
                        return false;
                }

                $query = "INSERT INTO ut_lp_event_collections ".
                        "SET obj_id = '".$this->obj_id."', ".
                        "item_id = '".(int) $item_id."'";
                $this->db->query($query);
                
                $this->__read();

                return true;
        }

        function delete($item_id)
        {
                $query = "DELETE FROM ut_lp_event_collections ".
                        "WHERE item_id = '".$item_id."' ".
                        "AND obj_id = '".$this->obj_id."'";
                $this->db->query($query);

                $this->__read();

                return true;
        }


        function _deleteAll($a_obj_id)
        {
                global $ilDB;

                $query = "DELETE FROM ut_lp_collections ".
                        "WHERE obj_id = '".$a_obj_id."'";
                $ilDB->query($query);

                return true;
        }

        function _getItems($a_obj_id)
        {
                include_once 'course/classes/Event/class.ilEvent.php';

                global $ilObjDataCache;
                global $ilDB;

                $query = "SELECT * FROM ut_lp_event_collections WHERE obj_id = '".(int) $a_obj_id."'";
                $res = $ilDB->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        if(!ilEvent::_exists($row->item_id))
                        {
                                $query = "DELETE FROM ut_lp_event_collections ".
                                        "WHERE obj_id = '".$a_obj_id."' ".
                                        "AND item_id = '".$row->item_id."'";
                                $ilDB->query($query);
                                continue;
                        }
                        $items[] = $row->item_id;
                }
                return $items ? $items : array();
        }

        // Private
        function __read()
        {
                include_once 'course/classes/Event/class.ilEvent.php';

                global $ilObjDataCache;

                $query = "SELECT * FROM ut_lp_event_collections WHERE obj_id = '".$this->db->quote($this->obj_id)."'";
                $res = $this->db->query($query);
                while($row = $res->fetchRow(DB_FETCHMODE_OBJECT))
                {
                        if(!ilEvent::_exists($row->item_id))
                        {
                                $query = "DELETE FROM ut_lp_event_collections ".
                                        "WHERE obj_id = '".$a_obj_id."' ".
                                        "AND item_id = '".$row->item_id."'";
                                $this->db->query($query);
                                continue;
                        }
                        $this->items[] = $row->item_id;
                }
                
        }
}
?>