[Radiant] ActiveResource and CMS

[roland]

Hi
I would like to set up an ActiveResource Model so that a data entered  
in a form set
up with the mailer extension can be stored in a remote second webapp  
written in rails.

I used the radiant_on_rails extension to enable rails in paralell to  
radiant.
I created an active Reseource model like this:

class Reservation < ActiveResource::Base
    self.site ="http://localhost:3001/"
end

Then I wanted to play around wit the active resource model in irb

   res = Reservation.new

   and got this Error

   NameError: uninitialized constant ActiveResource

I guess radiant does not load ActiveResource? Or am i missing something.
But maybe a hint to an alternative approach to solve this would helpful.

Thanx Roland