Working With Rails

Acts As Money

acts_as_money is a fairly trivial plugin that makes it easier to work with the money gem.

class Product < ActiveRecord::Base
  money :price
end

This assumes that there are 2 columns in the database, cents (integer) and currency (string). These fields can be changed by setting the :cents and :currency options. To use the default currency, you can simple set :currency to false

class Room < ActiveRecord::Base
  money :rate, :cents => :rate_in_cents, :currency => :rate_currency
  money :discount, :cents => :discount_in_cents, :currency => false
end

acts_as_money allows you to pass a String, Fixnum, Float or Money object as a parameter to the setter, and it will call #to_money to convert it to a Money object. This makes it convenient for using money fields in forms.

r = Room.new :rate => "100.00" 
r.rate                            # returns <money:0x249ef9c>

NOTE: This description has been extracted from the Plugin README and so the formatting may need updating to make browser friendly