protected function _updateParentDependFields()
    {
        $oDb = \OxidEsales\Eshop\Core\DatabaseProvider::getDb();

        foreach ($this->_getCopyParentFields() as $sField) {
            $sValue = isset($this->$sField->value) ? $this->$sField->value : 0;
            $sSqlSets[] = '`' . str_replace('oxarticles__', '', $sField) . '` = ' . $oDb->quote($sValue);
        }

        $sSql = "UPDATE `oxarticles` SET ";
        $sSql .= implode(', ', $sSqlSets) . '';
        $sSql .= " WHERE `oxparentid` = " . $oDb->quote($this->getId());

        return $oDb->execute($sSql);
    }