Assets で pathを指定する

Assets でのパス指定に少し躓いたのでメモ書き

Asset::add_path('assets/data', array('css', 'img', 'js'));

/*
    [_asset_paths:protected] => Array
        (
            [css] => Array
                (
                    [0] => assets\data\css\
                    [1] => assets\css\
                )

            [js] => Array
                (
                    [0] => assets\data\js\
                    [1] => assets\js\
                )

            [img] => Array
                (
                    [0] => assets\data\img\
                    [1] => assets\img\
                )

        )

*/

Asset::add_path('assets/data', array('css' => '', 'img' => '', 'js' => ''));

/*
    [_asset_paths:protected] => Array
        (
            [css] => Array
                (
                    [0] => assets\data\
                    [1] => assets\css\
                )

            [js] => Array
                (
                    [0] => assets\data\
                    [1] => assets\js\
                )

            [img] => Array
                (
                    [0] => assets\data\
                    [1] => assets\img\
                )

        )
*/