app/models/idioma/phrase.rb
def update_backend
      if Idioma.configuration.redis_backend
        if i18n_value.present?
          Idioma::RedisBackend.update_phrase(self)
        else
          Idioma::RedisBackend.delete_phrase(self)
        end
      end
    end
def update_backend
      if Idioma.configuration.redis_backend
        if i18n_value.present?
          Idioma::RedisBackend.update_phrase(self)
        else
          Idioma::RedisBackend.delete_phrase(self)
        end
      end
    end
Will update the i18n backend if it has been configured