Rails的accepts_nested_attributes_for错误，请帮我发现它 [英] Rails accepts_nested_attributes_for Error, please help me spot it

问题描述

我一直在努力遵循活动记录嵌套属性指南，但没有成功。

I have been trying to follow the Active Record Nested Attributes Guide, without much success.

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

在试图创建一个联系人：

When trying to create a contact:

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

我收到以下错误： 的ActiveRecord :: AssociationTypeMismatch：电话（＃80827590）预计，得到了哈希（＃72886250）

I get the following error: ActiveRecord::AssociationTypeMismatch: Telephone(#80827590) expected, got Hash(#72886250)

能否请你帮我找到这个错误？ 有没有code，我应该包括在 contact_controller.rb ？

Could you please help me spot the error? Is there any code that I should include in the contact_controller.rb?

推荐答案

我得到了它具有以下code工作：

I got it working with the following code:

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

我经过了错误的参数给 Contact.create 控制器...

这篇关于Rails的accepts_nested_attributes_for错误，请帮我发现它的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！