# In config/environment.rb
# The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
# config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}')]
# config.i18n.default_locale = :de

# Getting and setting the current locale
I18n.locale # => :en
I18n.locale = :sv
I18n.locale # => :sv

I18n.translate :'home.page_title' # => Welcome
# You can use just t as a shorthand for translate
I18n.t :'home.page_title' # => Welcome

# Defaults
I18n.t :'home.foobar', :default => 'my default text' # => my default text

# Pluralization
I18n.t :'home.articles' # =>  {:one=>"Article", :other=>"Articles"}
I18n.t :'home.articles', :count => 1 # => Article
I18n.t :'home.articles', :count => 2 # => Articles

# In config/locales/en.yml
en:
  home:
    page_title: Welcome {{user_name}}

I18n.t 'home.page_title' # => raises I18n::MissingInterpolationArgument
I18n.t 'home.page_title', :user_name => 'Peter' # => 'Welcome Peter'

I18n.localize Time.now # => "Wed, 18 Feb 2009 14:38:07 +0100" 
I18n.locale = :sv
I18n.localize Time.now # => "Onsdag, 18. Februari 2009, 14:37 Uhr" 

# In views and controllers you can use the t helper method instead of I18n.t
<%=h t(:'home.page_title') %

# In config/locales/sv.yml
  activerecord:
    errors:
      # The values :model, :attribute and :value are always available for interpolation
      # The value :count is available when applicable. Can be used for pluralization.
      messages:
        exclusion: "är reserverad" 
        invalid: "har ett ogiltigt värde" 
        ...
    attributes:
      pressrelease: # The ActiveRecord model
        body: "Brödtexten" # The model attribute translation  

# Rails has Time Zone support as of version 2.1
# In config/environment.rb
config.time_zone = 'Central Time (US & Canada)' # UTC -6

Time.now # => Wed Feb 18 14:58:54 +0100 2009
Time.zone.now # => Wed, 18 Feb 2009 07:59:16 CST -06:00

# ActiveRecord attributes are in the current timezone
Article.first.created_at # => Wed, 18 Feb 2009 07:59:41 CST -06:00
# Dates in the database are stored in UTC:
Article.first.created_at_before_type_cast # => "2009-02-18 13:59:41" 

# In ActiveRecord::Base.find conditions, the following expressions work:
# Time.zone.now, 1.days.ago, or Time.parse("2008-12-23").utc,
# The following don't work:
# Time.now, Time.parse("2008-12-23")
# Examples:
Event.all(:conditions => ["start_time > ?", Time.zone.now])
Event.all(:conditions => ["start_time > ?", Time.parse("2008-12-23").utc])

# You can use a before filter to set the time zone of the current user like this:
before_filter :set_timezone

def set_timezone
  # current_user.time_zone #=> 'London'
  Time.zone = current_user.time_zone
end