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# frozen_string_literal: true
require "money"
Money.rounding_mode = BigDecimal::ROUND_HALF_UP
# Creates accessors for money values
module Sequel::Plugins::MoneyAccessors
MoneyClassRequired = Class.new(StandardError)
module ClassMethods
# Setup money accessor
#
# @param amount_column [Symbol] amount column
# @param currency_column [Symbol] currency column
# @example
# class Order < Sequel::Model
# money_accessor :amount, :currency
# end
#
# order = Order.create(amount: 200, currency: "EUR")
# order.amount # => #<Money fractional:20000.0 currency:RUB>
# order.currency # => "EUR"
def money_accessor(amount_column, currency_column)
money_getter(amount_column, currency_column)
money_setter(amount_column, currency_column)
end
def money_getter(amount_column, currency_column)
include_accessors_module!
@_money_accessors_module.module_eval do
define_method(amount_column) do
amount, currency = super(), send(currency_column)
return unless amount && currency
Money.from_amount(amount.to_d, currency)
end
end
end
def money_setter(amount_column, currency_column)
include_accessors_module!
@_money_accessors_module.module_eval do
define_method(:"#{amount_column}=") do |value|
case value
when Money
amount = value.to_d
currency = value.currency.to_s
when nil
amount = currency = nil
else
raise MoneyClassRequired, "#{amount_column} value must be either Money instance or nil"
end
super(amount)
send(:"#{currency_column}=", currency)
end
end
end
private
def include_accessors_module!
return if defined?(@_money_accessors_module)
@_money_accessors_module = Module.new
include @_money_accessors_module
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems