public function getDirtyColumns()
    {
        $ret = array_keys($this->_cleanData);
        foreach ($this->_getSiblingRows() as $r) {
            $ret = array_merge($ret, $r->getDirtyColumns());
        }
        return $ret;
    }
public function getDirtyColumns()
    {
        $ret = array_keys($this->_cleanData);
        foreach ($this->_getSiblingRows() as $r) {
            $ret = array_merge($ret, $r->getDirtyColumns());
        }
        return $ret;
    }
public function getDirtyColumns ( ) { $ ret = array_keys ( $ this -> _cleanData ) ; foreach ( $ this -> _getSiblingRows ( ) as $ r ) { $ ret = array_merge ( $ ret , $ r -> getDirtyColumns ( ) ) ; } return $ ret ; }
dirty columns der row und der sibling rows
dirty columns der row und der sibling rows