Rails-3.0.3 gives Completed 406 Not Acceptable

Just mouse over the links and you will see the difference in the generated urls.

I cannot reproduce this. Can you try to isolate the issue to a minimal application that exhibits the problem? Thanks!

I will try. The difficulty being that we are about to deploy the next release of our application. So, I might be a little while getting to it.

I have done a little more investigation and I do not think that I can get things much simpler than this:

Routes as given above.

3.0.3 behaviour ( same as 3.0.2 )

$ rails c
Using AdapterExtensions
Loading development environment (Rails 3.0.3)
ruby-1.8.7-p302 > app.user_roles_path
 => "/user/roles" 
ruby-1.8.7-p302 > app.user_roles_path( 1 )
 => "/user/roles.1" 
ruby-1.8.7-p302 > exit

3.0.1 behaviour

$ rails c
Using AdapterExtensions
Loading development environment (Rails 3.0.1)
ruby-1.8.7-p302 > app.user_roles_path
ActionController::RoutingError: No route matches {:controller=>"user_roles", :action=>"create"}
        from /home/byrnejb/.rvm/gems/ruby-1.8.7-p302/gems/actionpack-3.0.1/lib/action_dispatch/routing/route_set.rb:424:in `raise_routing_error'
        from /home/byrnejb/.rvm/gems/ruby-1.8.7-p302/gems/actionpack-3.0.1/lib/action_dispatch/routing/route_set.rb:397:in `generate'
        from /home/byrnejb/.rvm/gems/ruby-1.8.7-p302/gems/actionpack-3.0.1/lib/action_dispatch/routing/route_set.rb:453:in `generate'
        from /home/byrnejb/.rvm/gems/ruby-1.8.7-p302/gems/actionpack-3.0.1/lib/action_dispatch/routing/route_set.rb:481:in `url_for'
        from /home/byrnejb/.rvm/gems/ruby-1.8.7-p302/gems/actionpack-3.0.1/lib/action_dispatch/routing/url_for.rb:132:in `url_for'
        from /home/byrnejb/.rvm/gems/ruby-1.8.7-p302/gems/actionpack-3.0.1/lib/action_dispatch/routing/route_set.rb:195:in `user_roles_path'
        from (irb):2
ruby-1.8.7-p302 > app.user_roles_path( 1 )
 => "/users/1/roles"

I should point out that this behaviour is exhibited after I did the following simplifications:

1. The entire route.rb file looks like this:

Proforma::Application.routes.draw do

  resource :user do
    resources :roles
  end

  resources :users do
    resources  :roles, 
      :controller => 'user_roles'
  end

end

The Gemfile contains only this:

source 'http://rubygems.org'
gem "rails", "= 3.0.3"
gem 'pg

I generated a new rails-3.0.3 project and added the suspect routes only. The problem is instantly reproducible:

$ rails c
Loading development environment (Rails 3.0.3)
ruby-1.8.7-p302 > 
ruby-1.8.7-p302 >   app.user_roles_path( 1 )
 => "/user/roles.1"

Reordering the resources did resolve the problem.