gdpelican/inline_translation

module InlineTranslation
  module Concerns
    module ActsAsTranslatable
      extend ActiveSupport::Concern

      module ClassMethods
        def acts_as_translatable(on: [], load_via: :find, id_field: :id, language_field: :language)
          include InlineTranslation::Concerns::Translatable
          define_singleton_method :translatable_fields, -> { Array on }
          define_singleton_method :get_instance,        ->(id) { send load_via, id }
          define_method :id_field,                      -> { send id_field }
          define_method :language_field,                -> { send language_field }
        end
      end
    end
  end
end