[Include all Rails helpers] If you need access to helpers, even private ones (for a decorator, say), try this. #tags: ruby, rails, helpers, decorators, liquid

helper_proxy.rb

module HelperProxy
  HELPER_DIRECTORY = Dir[Rails.root.join('app', 'helpers', '**', '*.rb')]

  HELPER_DIRECTORY.each do |file|
    include file.split(/\/helpers\/(.*?)\.rb/)[1].classify.safe_constantize
  end
end