How can I send emails in Rails 3 using the recipient's locale?

Question

How can I send mails in a mailer using the recipient\'s locale. I have the preferred locale for each user in the database. Notice this is different from the current locale (I18n

Answer 1

I believe the best way to do this is with the great method I18n.with_locale, it allows you to temporarily change the I18n.locale inside a block, you can use it like this:

def new_follower(user, follower)
  @follower = follower
  @user = user
  I18n.with_locale(@user.profile.locale) do
    mail to: @user.email
  end
end

And it'll change the locale just to send the email, immediately changing back after the block ends.

Source: http://www.rubydoc.info/docs/rails/2.3.8/I18n.with_locale