#138 I18n (revised)

Great screencast on basic I18n use in ruby!

Another unmentioned tool for managing your YAML files is Locale, check it out.

(Disclaimer : I'm a Locale developer)

Any idea, why localizing nested attributes is unbelievable painful? Consider this setup, where you need a lot of repetition to create correctly localized error messages.

Am I doing it wrong?

Maybe we can have an episode about globalize3 next?

Thank you so much for this. I did not know we can use Model attributes in a more simpler than i used to do it all the time.

excellent revised episode!

Using the t() method, it can sometimes be confusing which key in the i18n file Rails is trying to look up.. there doesn't seem to be a consistent naming convention in Rails.

e.g it uses different locations for form labels, buttons, helpers, titles, strings in controllers or models, etc..

The following page provides a table with examples, as well as a tip on how to monkey-patch the i18n Gem in development mode, so Rails will tell you the i18n-keys it tries to look up.

http://www.unixgods.org/~tilo/Rails/where_is_Rails_trying_to_lookup_L10N_strings.html

I hope you'll find it useful.

The screencasts are so perfectly made, I am trying to do the same at my http://happycasts.net (One Linux Tip per Week), to make sth useful and beautiful at the same time.

Railscasts Rocks!!!

Managing i18n and l10n can be very painful, especially in large projects with multiple persons working on translations.

That is why we built a product to make things a lot easier: phrase

If you have a rails/ruby project that uses the i18n gem, this could be the right thing for you to use.

And since we are on Railscasts, we have a screencast, too ;-)

Nice one, for dealing with locales in the URLs Routing Filter Unless API might be useful.

you may want to update

match '*path', to: redirect("/#{I18n.default_locale}/%{path}")

to be something along the lines of

match '*path', to: redirect({|params, request| "/#{I18n.default_locale}#{request.fullpath}"})

If you want to maintain the request format sent in /posts.json, also it should be noted that a 302 redirect will not resubmit post data, possibly a 307. This method of redirection you need to pay close attention that any urls placed in ajax calls have the locale otherwise there may be some unforeseen bugs, especially with POST requests

Has anyone tried tr8n?

http://github.com/berk/tr8n

http://wiki.tr8n.org/slides

No need for YML files, full support for language context rules and language cases. Uses crowd-sourced or professional translator provided translations.

Here is what some of the translations would look like. t method is replaced with tr.

<%= tr("Hello World!") %>

<%= tr("Name:", "User name label") %>

• uses description to provide context for the label

<%= tr("You have {count|| message} in your mailbox.", nil, {count: 5}) %>

• will use numeric rules and inflectors to provide the right form for message/messages

<%= tr("{actor} sent {target::dat} a message.", nil, {actor:user1, target:user2}) %>

• will use gender of {actor} user to provide the right form for word "sent" and apply Dative language case to the name of target user token.

<%= tr("{actor} sent {target::dat} [strong: {count|| message}].", nil, {actor:user1, target:user2, count:5}) %>

• similar to the above example, but also adds a decoration token around the number of messages. Here is an example in English:

Michael sent Anna 5 messages.

In Russian this would need 9 translations based on the gender of actor (male, female, unknown) as well as value of count: 3 cases as well. It can translate names as well, if you so desire.

Михаил послал Анне 5 сообщений.

The technology is very powerful and has been used by Geni and Yammer and a few other companies and is now open sourced.

(Disclaimer: I am a tr8n developer)

For some strange reason. It sends me to an redirect loop
http://0.0.0.0:3000/en/en/en/en/en/en/en/en/en/en/en/en/en/en/en/en/en/en/en/en/en/assets
Am using twitter bootstrap
Not sure what could be going wrong

I want to set the locale by the clients browserlocale request.env['HTTP_ACCEPT_LANGUAGE'] and by the url.

If the url has no params[:locale] it should use the browserlocale set the url.

Here is my code:

class ApplicationController < ActionController::Base
  protect_from_forgery
  before_filter :set_locale
  
private
  
  # set the language
  def set_locale
    if params[:locale].blank?
      I18n.locale = extract_locale_from_accept_language_header
    else
      I18n.locale = params[:locale]
    end
  end
  
  # pass in language as a default url parameter
  def default_url_options(options = {})
    {locale: I18n.locale}
  end
  
  # extract the language from the clients browser
  def extract_locale_from_accept_language_header
    browser_locale = request.env['HTTP_ACCEPT_LANGUAGE'].scan(/^[a-z]{2}/).first 
    if I18n.available_locales.include? browser_locale
      browser_locale
    else
      I18n.default_locale
    end
  end
end

Myapp::Application.routes.draw do
  # set language path
  scope ":locale", locale: /#{I18n.available_locales.join("|")}/ do

    root :to => "mycontrollers#new"
    
    # set RESTful routes for the locations Controller
    resources :mycontrollers

  end

  match '*path', to: redirect("/#{I18n.locale}/%{path}"), constraints: lambda { |req| !req.path.starts_with? "/#{I18n.default_locale}/" }

  match '', to: redirect("/#{I18n.locale}")

end

The Problem is that the routesfile gets executed first so the controller-actions won't grab anymore.

Does anyone has a solution for that?

Thank you, Ryan!

This is awesome, works great on development but when I pushed to production I get this error in the log...

URI::InvalidComponentError (bad component(expected host component):

Thanks in advance for any help out there

I have followed all instructions and even copy/paste-d to make sure I made no mistakes. I'm at 6:16, right after adding default_url_options in the application controller and keep getting the same error when restarting the server.

gems/ruby-1.9.2-p290/gems/actionpack-3.1.3/lib/action_dispatch/routing/mapper.rb:177:in `default_controller_and_action': missing :controller (ArgumentError)

whyyy?

Hi, does anyone knows how to accomplish that routing process in Rails 2.3.X ?
Thank you.

Hi, anybody knows why when i type long urls it redirected to an escaped url?
http://localhost:3000/users/login becomes http://localhost:3000/id/users%2Flogin

Hi,
The routes seetings affects the assets path in production.
Ain't working as is.

nice approach rayn ,,I didnot test it in production yet ,,but it seems that its not working with with Endless page approach you showed before .

It works like a charm :) Thank you very much !

Just a question, how can I use I18n in javascript confirmation, for example to delete an item

<%= link_to raw(''), user, confirm: 'Are you sure?', method: :delete %>

Thanks :)

I did it like this

confirm: t("sure")

but in fact my question is more for links like the one below :

<%= link_to (raw('<button class="btn" rel="tooltip" title="Edit"><i class="icol-pencil"></i></button>')), edit_user_path(user)%> 

You should not use the match method in your router without specifying an HTTP method.

Match is now depreciated with rails 4. I changed "match" to "get". I figured it makes sense to only support get in these routes. Who would be posting or patching in an unknown language?

# match '*path', to: redirect("/#{I18n.default_locale}/%{path}"), constraints: lambda { |req| !req.path.starts_with? "/#{I18n.default_locale}/" }
# match '', to: redirect("/#{I18n.default_locale}")

get '*path', to: redirect("/#{I18n.default_locale}/%{path}"), constraints: lambda { |req| !req.path.starts_with? "/#{I18n.default_locale}/" }
get '', to: redirect("/#{I18n.default_locale}")

Make sure that if you are using devise with a locale field like so:

      I18n.locale = current_user.locale 

It important to check if current_user is nil before setting the locale. If you're using devise, placing this code in your application controller without checking will cause not-logged in user's pages to crash.

Hi i use rails 4.

I have a loop in my url when i put bad locales : example : site.com/zz/

It's look like : site.com/en/en/en/en/en/zz/

In my config/routes.rb i have :

match '', to: redirect{|params| "/#{I18n.default_locale}"}, via: :all
match '*path', to: redirect{|params| "/#{I18n.default_locale}/#{params[:path]}"}, via: :all

Does anyone have the same issue ?