public static function _creationSchema(Array $options = array())
    {
        $class = self::_tableNameForClass(get_called_class());

        // default options
        $options = array_merge(self::_defaultCreateOptions(),$options);

        return

            <<<EOD

CREATE TABLE IF NOT EXISTS `{$class}` (
  `id`          bigint(11) NOT NULL AUTO_INCREMENT,
  `slug`        varchar(100) NOT NULL,
  `title`       varchar(100) NOT NULL,
  `content`     text NOT NULL,
  `created_at`  datetime DEFAULT NULL,
  `updated_at`  datetime DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE={$options['engine']} DEFAULT CHARSET={$options['charset']} AUTO_INCREMENT=1 ;

EOD;

    }