ruby-on-rails - 如何确定 Rails 对象是否标记为_for_destruction？

Question

我有一些对象恰好是其他东西的nested_attributes。
当它们被标记为删除时，Rails 会创建一个属性“marked_for_destruction”。
我如何阅读这个变量？

示例 Yaml 转储:

--- &id001 !ruby/object:LineItem 
attributes: 
  name:Pay
  created_at: 2009-10-12 16:30:51
  updated_at: 2009-10-12 16:30:51
  statement_id: "8"
  amount: "234"
  id: "33"
attributes_cache: {}

errors: !ruby/object:ActiveRecord::Errors 
  base: *id001
  errors: {}

marked_for_destruction: true

Answer 1

Object.marked_for_destruction?