Trouble on using the i18n gem with partial template files

Question

I am using Ruby on Rails 3.1 and I would like to know how to correctly handle internationalization related to partial template files. That is, ...

... in my app/vi

Answer 1

I wrote this. What do you think about it?

def translate_for_partials key, *args
  I18n.t("#{params[:controller].gsub('/', '.')}.#{params[:action]}.#{key}", *args)
end

Is that bad to make such a method ?