private function _getColumns()
    {
        $columns = [];
        foreach ($this->_config['columns'] as $data) {
            $columns[] = new Column($data, $this->_config['view_name']);
        }
        return $columns;
    }
private function _getColumns()
    {
        $columns = [];
        foreach ($this->_config['columns'] as $data) {
            $columns[] = new Column($data, $this->_config['view_name']);
        }
        return $columns;
    }
private function _getColumns ( ) { $ columns = [ ] ; foreach ( $ this -> _config [ 'columns' ] as $ data ) { $ columns [ ] = new Column ( $ data , $ this -> _config [ 'view_name' ] ) ; } return $ columns ; }
Returns array with Column objects

@return array
Returns array with Column objects