Trouble on using the i18n gem with partial templat

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/views/users/flag.html.erb file I have:

<%= t('.test_key1') %>
<%= render :partial => "/users/flag_form" %>

... in my app/views/users/_flag_form.html.erb file I have:

<%= t('.test_key2') %>

If in my config/locales/views/users/en.yml file (note: I am organizing files as stated in the official RoR guide) I use

en:
  users:
    flag:
      test_key1: Test 1 text
      test_key2: Test 2 text

the Test 1 text is displayed in the "main" template (app/views/users/flag.html.erb) but the Test 2 text isn't for the partial template (app/views/users/_flag_form.html.erb). How could\should I solve this issue so to properly display the Test 2 text?

Answer 1

config/locales/en.yml

en:
  users:
    flag:
      test_key1: Test 1 text
    flag_form:
      test_key2: Test 2 text

app/views/users/flag.html.erb

<%= t('.test_key1') %>
<%= render :partial => "/users/flag_form" %>

app/views/users/_flag_form.html.erb

<%= t('.test_key2') %>

NB:

1. Rails path to the view must match YAML path to the symbol. You need to create an entry at YAML file that matches the name of the view. Omit the trailing underscore since it's a partial.
2. Read more about lazy lookups

Answer 2

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 ?

Answer 3

One way would be to using scope, instead of "lazy loading" using the full stop. Something like this should work:

I18n.t :test_key2, :scope => 'users.flag'

or use:

I18n.t "users.flag.test_key2"

Lastly, you could even pass it to the partial as in

<%= render :partial => "/users/flag_form", :locals => { :test_key => t('.test_key1') } %>

You should also checkout the appendix section on this website as it might be listing something that I am missing: http://www.unixgods.org/~tilo/Rails/where_is_Rails_trying_to_lookup_L10N_strings.html