class.ilObjectCustomUserFieldHistory.php

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<?php
/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilObjectCustomUserFieldHistory
{
    private $obj_id = 0;
    private $user_id = 0;
    private $update_user = 0;
    private $editing_time = null;
    
    public function __construct($a_obj_id, $a_user_id)
    {
        $this->obj_id = $a_obj_id;
        $this->user_id = $a_user_id;
        $this->read();
    }
    
    public static function lookupEntriesByObjectId($a_obj_id)
    {
        global $DIC;

        $ilDB = $DIC['ilDB'];
        
        $query = 'SELECT * FROM obj_user_data_hist ' .
                'WHERE obj_id = ' . $ilDB->quote($a_obj_id, 'integer');
        $res = $ilDB->query($query);
        
        $users = array();
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $users[$row->usr_id]['update_user'] = $row->update_user;
            $users[$row->usr_id]['editing_time'] = new ilDateTime($row->editing_time, IL_CAL_DATETIME, ilTimeZone::UTC);
        }
        return $users;
    }

    public function setUpdateUser($a_id)
    {
        $this->update_user = $a_id;
    }
    
    public function getUpdateUser()
    {
        return $this->update_user;
    }
    
    public function setEditingTime(ilDateTime $dt)
    {
        $this->editing_time = $dt;
    }
    
    public function getEditingTime()
    {
        return $this->editing_time;
    }
    
    public function save()
    {
        global $DIC;

        $ilDB = $DIC['ilDB'];
        
        $this->delete();
        
        $query = 'INSERT INTO obj_user_data_hist (obj_id, usr_id, update_user, editing_time) ' .
                'VALUES( ' .
                $ilDB->quote($this->obj_id, 'integer') . ', ' .
                $ilDB->quote($this->user_id, 'integer') . ', ' .
                $ilDB->quote($this->getUpdateUser(), 'integer') . ', ' .
                $ilDB->quote($this->getEditingTime()->get(IL_CAL_DATETIME, '', ilTimeZone::UTC)) . ' ' .
                ')';
        $ilDB->manipulate($query);
    }
    
    public function delete()
    {
        global $DIC;

        $ilDB = $DIC['ilDB'];
        
        $query = 'DELETE FROM obj_user_data_hist ' .
                'WHERE obj_id = ' . $ilDB->quote($this->obj_id, 'integer') . ' ' .
                'AND usr_id = ' . $ilDB->quote($this->user_id, 'integer');
        $ilDB->manipulate($query);
    }
    
    protected function read()
    {
        global $DIC;

        $ilDB = $DIC['ilDB'];
        
        $query = 'SELECT * FROM obj_user_data_hist ' .
                'WHERE obj_id = ' . $ilDB->quote($this->obj_id, 'integer') . ' ' .
                'AND usr_id = ' . $ilDB->quote($this->user_id, 'integer');
        $res = $ilDB->query($query);
        while ($row = $res->fetchRow(ilDBConstants::FETCHMODE_OBJECT)) {
            $this->setEditingTime(new ilDateTime($row->editing_time, IL_CAL_DATETIME, ilTimeZone::UTC));
            $this->setUpdateUser($row->update_user);
        }
    }
}