Extending the monetize gem to use jsonb attributes. (Currency not included)

monetize_jsonb.rb

module MonetizeJsonb
  def monetize_jsonb(*attrs)
    attrs.each do |attr_name|
      define_method("#{attr_name}=") do |value|
        value_in_cents = Monetize.parse(value, account.currency).cents
        self.send("#{attr_name}_cents=", value_in_cents)
      end

      define_method(attr_name) do
        Money.new(self.send("#{attr_name}_cents"), account.currency)
      end
    end
  end
end

# monetize_jsonb :price, :discounted_price
#  store_accessor :price_attributes, :price_cents, :discounted_price_cents