When you need to create a locale for a language variant (like Austrian for German), you probably don't want to duplicate your entire de.yml
file only to change a few minor exceptions for our Austrian friends.
Luckily, the I18n gem used by Rails has a fallback feature Show archive.org snapshot where you can make one locale file fall back to another if no translation is available.
In the example above you would have a config/locales/de_DE.yml
:
de_DE:
# hundreds of translations here
... and another locale config/locales/de_AT.yml
:
de_AT:
# only a handful exceptions here
Now write the following lines to config/initializers/i18n.rb
to make de_AT
fall back to de_DE
:
require "i18n/backend/fallbacks"
I18n::Backend::Simple.send(:include, I18n::Backend::Fallbacks)
I18n.fallbacks.map('de_AT' => 'de_DE')
Check if a key is defined in the current locale (without fallback)
Do this:
I18n.exists?('my.key', fallback: false)
Rails 2
For Rails 2.3.11 you need to upgrade your project to use the I18n gem by adding this to the top of your Gemfile
:
gem 'i18n'
Then run
bundle install
Posted by Henning Koch to makandra dev (2011-07-28 10:51)