Optional Dynamic Prepended Route via scope

Hello,

Say I have the following in my routes file:

scope "(/:organization)" do   resources :systems, :except => [:destroy] do     member do       get :packages     end   end end

  resources :dashboard do     collection do       get :notices   end

The organization can be changed by the user and various resources such as systems are scoped off of the organization. So, the organization can change dynamically and so as to be restful we want to prepend the organization to each route within that scope. Following the Rails guides, I attempted to use:

default_url_options()   { :organization => current_organization.name } end

Which generated URLs in the way desired, e.g. /Organization1/system/ However, the URLs generated (via _path() calls, e.g. dashboard_path()) include the extra paramter ?organization=Organization1 which is not the behavior desired for this application.

My question then is - is it possible to have the organization set and included for only those routes that declare a scope of /:organization.