Ruby on Rails: Pluralize for Other Languages

Ruby On Rails: pluralize for other languages

Add your rules to an inflections.rb file in config/initializers. See the API documentation:

ActiveSupport::Inflector.inflections do |inflect|
  inflect.plural 'boek', 'boeken'
end

i18n Pluralization

Try this:

en.yml :

en:
  misc:
    kids:
      zero: no kids
      one: 1 kid
      other: %{count} kids

In a view:

You have <%= t('misc.kids', :count => 4) %>

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Updated answer for languages with multiple pluralization (tested with Rails 3.0.7):

File config/initializers/pluralization.rb:

require "i18n/backend/pluralization" 
I18n::Backend::Simple.send(:include, I18n::Backend::Pluralization)

File config/locales/plurals.rb:

{:ru => 
  { :i18n => 
    { :plural => 
      { :keys => [:one, :few, :other],
        :rule => lambda { |n| 
          if n == 1
            :one
          else
            if [2, 3, 4].include?(n % 10) && 
               ![12, 13, 14].include?(n % 100) && 
               ![22, 23, 24].include?(n % 100)

              :few 
            else
              :other 
            end
          end
        } 
      } 
    } 
  } 
}

#More rules in this file: https://github.com/svenfuchs/i18n/blob/master/test/test_data/locales/plurals.rb
#(copy the file into `config/locales`)

File config/locales/en.yml:

en:
  kids:
    zero: en_zero
    one: en_one
    other: en_other

File config/locales/ru.yml:

ru:
  kids:
    zero: ru_zero
    one: ru_one
    few: ru_few
    other: ru_other

Test:

$ rails c
>> I18n.translate :kids, :count => 1
=> "en_one"
>> I18n.translate :kids, :count => 3
=> "en_other"
>> I18n.locale = :ru
=> :ru
>> I18n.translate :kids, :count => 1
=> "ru_one"
>> I18n.translate :kids, :count => 3
=> "ru_few"  #works! yay! 
>> I18n.translate :kids, :count => 5
=> "ru_other"  #works! yay! 

pluralize and singularize for spanish language

I found this great way:
http://www.slideshare.net/crnixon/advanced-internationalization-with-rails

Regards.

How use rails inflections with diferent languages

Please see the documentation for String#pluralize

pluralize(count = nil, locale = :en)

If the optional parameter locale is specified, the word will be
pluralized as a word of that language. By default, this parameter is
set to :en.

You have to specify your locale if you want to use non-English pluralization rules.

"canal".pluralize(:"pt-BR")

Translate model's plural form

ActiveRecord first translates the model name using I18n.translate with default

:count => 1

Pluralizing this string afterwards dosn't know about model translations.

But, human accepts options so

Vehicle.model_name.human(:count => 2)

does the trick together with pluralized translations:

de:
  activerecord:
    models:
      vehicle:
        one: 'Fahrzeug'
        other: 'Fahrzeuge'

ruby on rails pluralization help?

Put the following code in config/environment.rb:

Inflector.inflections do |inflect|
  inflect.irregular 'actividad', 'actividades'
end

Test the code in the console (script/console):

'actividad'.pluralize
'actividades'.singularize

More details can be found here:
http://codeidol.com/other/rubyckbk/Web-Development-Ruby-on-Rails/Understanding-Pluralization-Rules/

Ruby on Rails: how to check pluralized and single form of names

You can do this in the rails console.

$ "anonymous".pluralize
=> "anonymous" 

or another example where the plural word is different.

$ "cookie".pluralize
=> "cookies" 

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