Currency Support

[elfassy]

• Support for passing a currency/amount

Money.new(10.00, 'USD')

• Allow a default currency

Money.default_currency = 'USD'
Money.new(10.00) == Money.new(10.00, 'USD')

• Raise on cross currency computation

Money.new(1, 'USD') + Money.new(1, 'CAD') #=> raise

• Deprecate from_cents in favor of from_subunits
  Will divide by the value by the number of subunits, not always 100

• to_s will show the correct number of subunits

Money.new('100', 'JPY').to_s #=> '100'
Money.new('100', 'SLL').to_s #=> '100.000'

Money.new('100', 'JPY').to_s(:legacy_dollars) #=> '100.00'
Money.new('100', 'SLL').to_s(:legacy_dollars) #=> '100.00'

• subunits to format with currency

Money.new(100, 'JPY').subunits #=> 100
Money.new(100, 'USD').subunits #=> 10000

[bdewater]

I think we can call this done 😄