如何使用Reform保存其他参数

Question

这是我的主要的改革表单对象；

class CardHolderSupplierForm < ApplicationForm
  property :supplier_id, validates: { presence: true }
  property :standing_order, form: StandingOrderForm
end

并且StandingOrderForm是；

class StandingOrderForm < ApplicationForm
  property :amount_pence
  property :reference
  property :frequency
end

我在standing_orders中有一个名为amount_currency的列，它应该始终是"GBP“。我似乎不能让改革为我硬塞这件事。我试过各种方法；

class StandingOrderForm < ApplicationForm
  property :amount_pence
  property :reference
  property :frequency

  # does nothing
  def amount_currency
    "GBP"
  end

  # does nothing - can't even binding.pry
  def save
    model.amount_currency = "GBP"
    super
  end

我不知道怎么才能让它正常工作。表单的其余部分正常工作。

Answer 1

如何使用改革的默认值设置？

property :amount_currency, default: "GBP"