从rails 3.1升级到rails 3.2时，由于模块名称空间中的下划线导致路由错误

Question

我们有一个rails应用程序，我们有一个API命名空间定义为API::V1, API::V1_2, API::V1_3等。

在路线。Rb，我们已经设置了以下

namespace :api do
  ["v1", "v1.2", "v1.3", "latest"].each do |name|
    namespace name, {:module => name.gsub(".","__"), :as => name.gsub(".","_") } do
      constraints :format => /json/ do
      # user scoped views
      resources :some_endpoint, :only => [:create, :index, :show, :update, :delete], :path => "scheduler" do
        member do
          put 'edit'
          post 'duplicate'
        end
      end
    end
  end
end

在Rails 3.1下运行时可以正常工作，但是在Rails 3.2中我们得到一个路由错误:

[INFO  pid: 17025: 14-07-28 19:06:15 ] Started GET "/api/v1.2/commands/1" for 192.168.1.130 at Mon Jul 28 19:06:15 -0700 2014
[FATAL pid: 17025: 14-07-28 19:06:15 ]
ActionController::RoutingError (uninitialized constant Api::V12):
  activesupport (3.2.17) lib/active_support/inflector/methods.rb:219:in `constantize'
  activesupport (3.2.17) lib/active_support/inflector/methods.rb:218:in `each'
  activesupport (3.2.17) lib/active_support/inflector/methods.rb:218:in `constantize'
  actionpack (3.2.17) lib/action_dispatch/routing/route_set.rb:69:in `controller_reference'
  actionpack (3.2.17) lib/action_dispatch/routing/route_set.rb:54:in `controller'
  actionpack (3.2.17) lib/action_dispatch/routing/route_set.rb:32:in `call'
  journey (1.0.4) lib/journey/router.rb:68:in `call'
  journey (1.0.4) lib/journey/router.rb:56:in `each'
  journey (1.0.4) lib/journey/router.rb:56:in `call'
  actionpack (3.2.17) lib/action_dispatch/routing/route_set.rb:608:in `call'
  omniauth (1.1.1) lib/omniauth/strategy.rb:177:in `call!'
  omniauth (1.1.1) lib/omniauth/strategy.rb:157:in `call'
  sass (3.2.6) lib/sass/./sass/plugin/rack.rb:54:in `call'
  warden (1.2.1) lib/warden/manager.rb:35:in `call'
  warden (1.2.1) lib/warden/manager.rb:34:in `catch'
  warden (1.2.1) lib/warden/manager.rb:34:in `call'
  actionpack (3.2.17) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
  rack (1.4.5) lib/rack/etag.rb:23:in `call'
  rack (1.4.5) lib/rack/conditionalget.rb:25:in `call'

当我们在rails 3.1上运行它时，上面的代码转换为Api:: v12。

任何想法可能是错误在这里，我如何修复它?代码在所有其他情况下都可以正常工作，包括渲染资产等。只有在这种情况下，rails才会抛出错误

Answer 1

曾经遇到过同样的事情。他们的github问题列表中有这个bug

https://github.com/rails/rails/issues/5849

然后一个pull request

https://github.com/rails/rails/pull/6105

但是讨论没有达成任何解决方案。常见的语句是

不喜欢模块中的uncores

所以你需要从模块名中去掉下划线