嵌套表单中的批量分配失败

Question

我遇到了新手面对Rails 3.2.3的常见问题。我收到错误

无法批量分配受保护的属性：user_impl，util_location

class User < ActiveRecord::Base

  has_one :user_impl, :dependent => :destroy
  has_one :util_location, :as => :locatable, :dependent => :destroy

  attr_accessible ..., :user_impl_attributes, :util_location_attributes

我尝试将accepts_nested_attributes_for：user_impl，：util_location添加到代码中，但这也无法正常工作并产生完全不同的错误。

Answer 1

基本结构应如下：

class User < ActiveRecord::Base
    attr_accessible :user_impl_attributes

    has_one :user_impl, :dependent => :destroy
    accepts_nested_attributes_for :user_impl