Default path names ignored

Well Michael, I think this little change do not need a indiviual test case in the rails tests. This change is a refactoring, not an addition of features. As you see in the example in this ticket, the "if" statement is redundant and make something like this:

# considering as resources_path_names = { :new => 'nuevo', :edit => 'editar' } and
# the resource definition is map.resources :things, :as => 'cosas'

# if action here is, for example, 'edit', it is asigned to action_path
action_path = action
# options[:path_names] is not defined in the resource declaration, threrefore the action_path remains as 'edit'
if resource.options[:path_names]
   action_path = resource.options[:path_names][action]
   # Here resides the bug
   # The apperance of "action" here is redundant, since it was asigned to action_path before
   # Base.resource_path_names[action] is not evaluated unless the resource declaration has the :path_names parameter defined directly, 
   action_path ||= Base.resources_path_names[action] || action
end

# in rake:routes the route appears as 'cosas/thing_id/edit'

Well, now, with my refactorization:

# Only evalue resource.options[:path_names] if exists
action_path = resource.options[:path_names][action] if resource.options[:path_names]
# Perform default asignment
# If previous line was evaluated, this line do nothing
# If previous line was not evaluated and exists a Base.resources_path_names for this action, the value is asigned
# If none of the previous examples were evaluated, then the action_path is the action itslef (as ocurrs with the first line the original code)
action_path ||= Base.resources_path_names[action] || action

# considering the same definitions in the previous example, here the rake:routes shows 'cosa/thing_id/editar' as spected

I've created a new patch with a new test reflecting the bug I've found and ensuring the correct use of ActionController::Base.resources_path_names. I've followed the guide for contributing to rails.

If you finally apply this patch and you want to reference me, my GitHub profile is yizzreel

Cheers