Fixed: BUT ! Re: Help: Restful link_to

I think I finally got this to work but wouldn't mind some confirmation
that this is the right and RESTFUL way.

map.resources :positions, :collection => {:member => :get}

controller:
def description
    @position = Position.find(params[:id])
    respond_to do |format|
      format.html
      format.xml {render :xml => @position.to_xml }
      end
  end

link:
<%= link_to "Preview Description", :controller => 'positions', :action
=> 'description', :id => @position.id %>

This make sense and any potential issues ?

TIA
Stuart