Polymorphic URLs from script/console?

In my routes.rb, I have:

map.resources :users, :member =>
{:edit_business_card => :get,
:update_business_card => :put }

In a view, I can say

<%= update_business_card_url %>

And from my browser, I can post to
http://localhost:3000/users/update_business_card.

But not from script/console:

app.update_business_card_user_url

ActionController::RoutingError: update_business_card_user_url failed to
generate from {:controller=>“users”, :action=>“update_business_card”} -
you may have ambiguous routes, or you may need to supply additional
parameters for this route. content_url has the following required
parameters: [“users”, :id, “update_business_card”] - are they all
satisfied?

I don’t actually care about doing this from console, but rspec has the
same
difficulty resolving the route. I’m stumped - url_for is getting the
same
parameters in each case.

Jay L.