Timing of language setting

Soichi Ishida

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Oct 17, 2012, 5:25:34 AM10/17/12

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Rails 3.1.3

Hi. My application's i18n seems to work, but the timing of the language
setting is wrong.

I have an User model, which has a column, 'language', so that users can
choose their default language. When each user logged in, the
applications should always apply itself the language of his/her choice.

Say, an user wishes to change the default language from Japanese to
French. The user inputs the new language of his/her choice in the
setting page and hits 'save'. The app jumps to to the top page having a
flash message appeared, 'Your setting is updated' but in JAPANESE.
Since the user has just changed the language, the flash is also to be
shown in French.

Translation yml files are properly set. The application_controller.rb is
the following.

Could anyone give me an advice how to set the language setting according
to user login session?

require 'geoip'
private
def set_locale
if user_signed_in?
extracted_locale = current_user.language
else
extracted_locale = params[:locale] ||
extract_locale_from_subdomain ||
extract_locale_from_tld ||
extract_locale_from_accept_language ||
extract_locale_from_ip

end
print current_user
I18n.locale = (I18n::available_locales.include?
extracted_locale.to_sym) ?
extracted_locale : I18n.default_locale
end

def extract_locale_from_subdomain
request.subdomains.first
end

def extract_locale_from_tld
request.domain.split('.').last
end

def extract_locale_from_accept_language
request.env['HTTP_ACCEPT_LANGUAGE'].scan(/^[a-z]{2}/).first
end

def extract_locale_from_ip
geoip ||= GeoIP.new(Rails.root.join(“lib/GeoIP.dat”))
country_location = @geoip.country(request.remote_ip)
country_location.country_code2.downcase
end

soichi

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Christopher McGrath

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Oct 17, 2012, 5:56:57 AM10/17/12

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On 17 Oct 2012, at 10:25, Soichi Ishida wrote:

> Rails 3.1.3
>
> Hi. My application's i18n seems to work, but the timing of the language
> setting is wrong.
>
> I have an User model, which has a column, 'language', so that users can
> choose their default language. When each user logged in, the
> applications should always apply itself the language of his/her choice.
>
> Say, an user wishes to change the default language from Japanese to
> French. The user inputs the new language of his/her choice in the
> setting page and hits 'save'. The app jumps to to the top page having a
> flash message appeared, 'Your setting is updated' but in JAPANESE.
> Since the user has just changed the language, the flash is also to be
> shown in French.

I'm pretty sure this is because the flash message is looked up *before* you change the domain and stored in the session. You can get the correct locale by doing something like:

I18n.t('my.flash.message', :locale => user.language)

In the controller before you redirect.

HTH,

Chris

---
Chris McGrath
http://www.localeapp.com

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