ruby-on-rails - Rails Accepts_nested_attributes_for 错误，请帮我找出来

Question

我一直在尝试遵循Active Record Nested Attributes Guide ，但没有取得多大成功。

我有以下型号:

class Contact < ActiveRecord::Base
  has_many :telephones
  accepts_nested_attributes_for :telephones
end

class Telephone < ActiveRecord::Base
  belongs_to :contact
end

尝试创建联系人时:

contact = {
  :name => "John",
  :telephones => [
    {:telephone => '787445741'},
    {:telephone => '478589658'}
  ]
}
Contact.create(contact)

我收到以下错误:ActiveRecord::AssociationTypeMismatch:预期电话 (#80827590)，得到哈希值 (#72886250)

您能帮我找出错误吗？我应该在 contact_controller.rb 中包含任何代码吗？

Answer 1

我使用以下代码让它工作:

params = { :contact => {
    :name => 'Joe',
    :permanentcomment => "No Comment",
    :telephones_attributes => [
      {:telephone => '787445741'},
      {:telephone => '478589658'}
    ]
  }}
  Contact.create(params[:contact])

我向 Contact.create Controller 传递了错误的参数...