yaml, xml and json formats are usually used for APIs or exporting. If you
can't see the benefit of adding a format probably you don't need it.
--
Sergio Cambra .:: entreCables S.L. ::.
Mariana Pineda 23, 50.018 Zaragoza
T) 902 021 404 F) 976 52 98 07 E) ser...@entrecables.com
<action>.formats add formats to respond_to method