public function getAddColumnsDDL($columns)
    {
        $lines = '';
        foreach ($columns as $column) {
            $lines .= $this->getAddColumnDDL($column);
        }

        return $lines;
    }
public function getAddColumnsDDL($columns)
    {
        $lines = '';
        foreach ($columns as $column) {
            $lines .= $this->getAddColumnDDL($column);
        }

        return $lines;
    }
public function getAddColumnsDDL ( $ columns ) { $ lines = '' ; foreach ( $ columns as $ column ) { $ lines .= $ this -> getAddColumnDDL ( $ column ) ; } return $ lines ; }
Builds the DDL SQL to add a list of columns

@param  Column[] $columns

@return string
Builds the DDL SQL to add a list of columns