Translated Constants

translated_constants.rb

# A
class TrackThing
  # The module can either be inline, or in its own file
  module TranslatedConstants
    def track_types
      { 'request_updates'  => _('Individual requests'),
        'all_new_requests' => _('Many requests') }
    end
  end
end

class TrackThing < ActiveRecord::Base
  extend TranslatedConstants

  def some_method(key)
    self.class.track_types[key]
  end
end

# B
class TrackThing < ActiveRecord::Base
  def some_method(key)
    TranslatedConstants.track_types[key]
  end
end

class TrackThing
  module TranslatedConstants
    def self.track_types
      { 'request_updates'  => _('Individual requests'),
        'all_new_requests' => _('Many requests') }
    end
  end
end

# C
class TrackThing < ActiveRecord::Base
  def some_method(key)
    TranslatedConstants.track_types(key)
  end
end

class TrackThing
  module TranslatedConstants
    TRACK_TYPES =
      { 'request_updates'  => Proc.new(_('Individual requests')),
        'all_new_requests' => Proc.new(_('Many requests')) }

    def self.track_types(key)
      TRACK_TYPES[key].call
    end
  end
end