Pluralize using Rails 3 in Slovenian language

articles_controller.rb

class ApartmentsController < ApplicationController
  def index
    @apartments = Apartment.all
  end
end

index.html.erb

<%= t(:apartment, :count => @apartments.count) %>

pluralize.rb

# Pluralization rules for Slovenian language for rails 3

I18n::Backend::Simple.send(:include, I18n::Backend::Pluralization)
{
  :'sl' => { :i18n => { :plural => { :rule => lambda { |n| [1].include?(n % 100) && ![11].include?(n % 100) ? :one : [2].include?(n % 100) && ![12].include?(n % 100) ? :two : [3, 4].include?(n % 100) && ![13, 14].include?(n % 100) ? :few : :other }}}}
}

sl.yml

# Example translations for apartment in Slovenian

sl:
  apartment:
    one: "%{count} stanovanje"
    two: "%{count} stanovanji"
    few: "%{count} stanovanja"
    other: "%{count} stanovanj"