class Money::Bank::SingleCurrency

• Money::Bank::SingleCurrency
• Money::Bank
• Reference
• Object

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 bank means that that these mistakes don't silently do the wrong thing.

Defined in:

Instance Method Summary

• #exchange(from : Money, to : Currency) : Money

  Raises a DifferentCurrencyError to remove possibility of accidentally exchanging currencies.

Instance Method Detail