From: "Bartosz Dziewoński" <matma.rex@...>
Date: 2012-01-05T06:58:11+09:00
Subject: Re: Including/selecting modules based on the methods they define

2012/1/4 Jon Hart <jhart@spoofed.org>:
> As it stands today, if you specify an action that the vendor product does
> not support (for example Foo::Bar.drink), an exception is thrown.  Again, I
> want to handle that more gracefully (which is easy enough with
> begin/rescue) and then show all the vendor products that do support drink.
>
> I feel like the answer lies somewhere around responds_to?, however I'd need
> to have access to the module name to call responds_to?, and as currently
> implemented this code doesn't know the module name.

But you do in fact know the module name (as long as it's consistent
with the file name):

irb(main):013:0> vendor, product = 'foo', 'bar'
irb(main):019:0> module =
Go.const_get(vendor.capitalize).const_get(product.capitalize)
=> Go::Foo::Bar

I think you'll be able to work from here :)


-- Matma Rex