MaicolBen / money_rb

Setup

gem build money_rb.gemspec
gem install ./money_rb-0.0.1.gem

Usage

require 'money_rb/money'

Configure the currency rates with respect to a base currency:

MoneyRb::Money.conversion_rates('EUR', {
  'USD' => 1.11,
  'UYU' => 30.7
})

Instantiate:

fifty_eur = MoneyRb::Money.new(50, 'EUR')
fifty_eur.amount   # => 50
fifty_eur.currency # => "EUR"
fifty_eur.inspect  # => "50.00 EUR"

Convert to a different currency:

fifty_eur.convert_to('USD') # => 55.50 USD

Arithmetics:

twenty_dollars = MoneyRb::Money.new(20, 'USD')
fifty_eur + twenty_dollars # => 68.02 EUR
fifty_eur - twenty_dollars # => 31.98 EUR
fifty_eur / 2              # => 25.00 EUR
twenty_dollars * 3         # => 60.00 USD

Comparisons:

twenty_dollars == MoneyRb::Money.new(20, 'USD') # => true
twenty_dollars == MoneyRb::Money.new(30, 'USD') # => false

fifty_eur_in_usd = fifty_eur.convert_to('USD')
fifty_eur_in_usd == fifty_eur          # => true

twenty_dollars > MoneyRb::Money.new(5, 'USD')   # => true
twenty_dollars < fifty_eur   # => true

Testing

rake test