Upgrading concern named Filter in rails 4.1

Question

I have the following structure:

- app
  - models
    ...
    user.rb
    - concerns
      ...   
      - user 
        ...
        filters.rb

And the following two classes

#app/models/user.rb:
class User < ActiveRecord::Base 
  ...
  include User::Filters
  ...
end

#app/models/concerns/user/filters.rb:
module User::Filters 
  extend ActiveSupport::Concern

  module ClassMethods 
    def filter_on_xxx
      ...
    end
  end
end

However, I now run: User.filter_on_xxx but i Get

NoMethodError: undefined method `filter_on_xxx' for User

This worked fine in rails 4.0.x

Not sure how to work around this without removing the concern and just moving it into the main class and using concerning which I'd like to avoid.

Answer 1

Turns out the upgrade to rails 4.1 meant that the name Filters was no longer allowed. Rename the file and the module to Filtering

i.e.

#app/models/concerns/filtering.rb
module User:Filtering
...
end

#app/models/user.rb
class User < ActiveRecord::Base
  include User::Filtering
  ...
end