Currency association with money-rails gem

Question

Instead of having a integer _cents field, and a _currency string field, I've created a Currency model, which has:

• iso_code
• usd_rate (the exchange rate to USD)
• name

Examples:

• USD
  • iso_code: "USD"
  • usd_rate: 1
  • name: "American Dollars"

Do you know how can I do to integrate this model with the money-rails gem? (I mean, for having a reference to the currency instead of saving the iso_code, and for using the exchange rate in the currency model)

Answer 1

Have you tried using the provided initializer to change the config.amount_column and config.currency_column options? Changing the column_name options in these might let you change it to a method name that returns the your currency model's attributes, and allow the gem to work its magic.