class
Money::Currency::Exchange::SingleCurrency
Overview
Class to ensure client code is operating in a single currency by raising if an exchange attempts to happen.
This is useful when an application uses multiple currencies but it usually deals with only one currency at a time so any arithmetic where exchanges happen are erroneous. Using this as the default exchange means that that these mistakes don't silently do the wrong thing.
Defined in:
money/currency/exchange/single_currency.crInstance Method Summary
-
#exchange(from : Money, to : Currency) : Money
Raises a
DifferentCurrencyErrorto remove possibility of accidentally exchanging currencies.
Instance methods inherited from class Money::Currency::Exchange
base_currencies : Array(Currency)
base_currencies,
exchange(from : Money, to : Currency) : Money
exchange,
exchange_rate(base : Currency, target : Currency) : BigDecimal
exchange_rate,
exchange_rate?(base : Currency, target : Currency) : BigDecimal | Nil
exchange_rate?,
rate_provider : RateProvider
rate_provider,
rate_provider=(rate_provider : RateProvider | Nil)
rate_provider=,
rate_store : RateStore
rate_store,
rate_store=(rate_store : RateStore | Nil)
rate_store=,
target_currencies : Array(Currency)
target_currencies
Constructor methods inherited from class Money::Currency::Exchange
new(rate_store : Money::Currency::RateStore | Nil = nil, rate_provider : Money::Currency::RateProvider | Nil = nil)
new
Instance Method Detail
Raises a DifferentCurrencyError to remove possibility of accidentally
exchanging currencies.