This gem extends Money::Bank::VariableExchange with Money::Bank::GoogleCurrency and gives you access to the current Google Currency exchange rates.
require 'money'
require 'money/bank/google_currency'
# set default bank to instance of GoogleCurrency
Money.default_bank = Money::Bank::GoogleCurrency.new
# create a new money object, and use the standard #exchange_to method
n = 1.to_money(:USD)
n.exchange_to(:EUR)
An UnknownRate will be thrown if #exchange_to is called with a Currency
that Money knows, but Google does not.
An UnknownCurrency will be thrown if #exchange_to is called with a
Currency that Money does not know.
Copyright (c) 2010 Shane Emmons. See {file:LICENSE} for details.