How do you change the currency to pounds or euros

Rails
#1

hi guys great forum for ruby on rails
can anyone tell me how to change the currency to anything other than
$?

#2

http://api.rubyonrails.org/classes/ActionView/Helpers/NumberHelper.html#M000520

Note the :unit key in the options hash. So:

number_to_currency(42.50, :unit => ‘!’) => !42.50

~ j.