Given a route :
ActionController::Routing::Routes.draw do |map|
map.foo "foo/:first/:second", :controller => "foo", :action => "something"
end
Obviously you can pass in :first and :second via:
foo_path(:first => "the first param", :second => "the second param")
However, for a more concise call, you can accomplish the same via:
foo_path("the first param", "the second param")
It’s not explicitly documented, but you end up doing the same thing with nested resource paths