Jeff currency

Gem that convert currency to each other.

Installation

Add this line to our Gemfile

gem 'jeff-money', git: 'https://github.com/gobert/jeff-money'

and then install it using bundle: bundle install.

The gem has been tested against ruby 2.4.1 (MRI).

Usage

First you need to prepare the gem:

Money = JeffMoney::Money
Money.conversion_rates('EUR', {
  'USD'     => 1.11,
  'Bitcoin' => 0.0047
})

Instantiate new objects:

fifty_eur = Money.new(50, 'EUR')

Get amount and currency:

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

Comparisons (also in different currencies):

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

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

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

Arithmetics:

fifty_eur + twenty_dollars # => 68.02 EUR
fifty_eur - twenty_dollars # => 31.98 EUR
fifty_eur / 2              # => 25 EUR
twenty_dollars * 3         # => 60 USD

Contribute

See CONTRIBUTING.md