ruby-on-rails - Rails 3 嵌套表单 - 多级

Question

我在我的应用程序中定义了以下模型

• 用户
• 简介
• 地址

这是我的用户模型:

class User < ActiveRecord::Base

  # Include default devise modules. Others available are:
  # :token_authenticatable, :encryptable, :confirmable, :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  # Setup accessible (or protected) attributes for your model
  attr_accessible :email, :password, :password_confirmation, :remember_me, :profile_attributes

  has_one :profile
  accepts_nested_attributes_for :profile
end

这是我的个人资料模型:

class Profile < ActiveRecord::Base

  attr_accessible :first_name, :last_name, :organization, :telephone_number, :user_id, :address_attributes

  belongs_to :user
  has_one :address

  accepts_nested_attributes_for :address
end

这是我的地址模型:

class Address < ActiveRecord::Base
  attr_accessible :street, :street_cont, :city, :state, :zip_code
  belongs_to :profile
end

我正在使用设计进行身份验证，所以在我看来我有以下注册:

<% resource.build_profile %>
<h2>Sign up</h2>

<%= form_for(resource, :as => resource_name, :url => registration_path(resource_name)) do |f| %>
  <%= devise_error_messages! %>

  <p><%= f.label :email %><br />
  <%= f.email_field :email %></p>

  <p><%= f.label :password %><br />
  <%= f.password_field :password %></p>

  <p><%= f.label :password_confirmation %><br />
  <%= f.password_field :password_confirmation %></p>

  <%=f.fields_for :profile do |profile_form| %>
      <p><%= profile_form.label :first_name %><br />
      <%= profile_form.text_field :first_name %></p>

      <p><%= profile_form.label :last_name %><br />
      <%= profile_form.text_field :last_name %></p>

      <p><%= profile_form.label :organization %><br />
      <%= profile_form.text_field :organization %></p>

      <p><%= profile_form.label :telephone_number %><br />
      <%= profile_form.text_field :telephone_number %></p>

      <%=f.fields_for :address do |address_form| %>
        <p><%= address_form.label :street %><br />
        <%= address_form.text_field :street %></p>

        <p><%= address_form.label :street_cont %><br />
        <%= address_form.text_field :street_cont %></p>

        <p><%= address_form.label :city %><br />
        <%= address_form.text_field :city %></p>

        <p><%= address_form.label :state %><br />
        <%= address_form.text_field :state %></p>

        <p><%= address_form.label :zip_code %><br />
        <%= address_form.text_field :zip_code %></p>
     <% end %>
  <% end %>

  <p><%= f.submit "Sign up" %></p>
<% end %>

<%= render :partial => "devise/shared/links" %>

表单正确呈现，但是当我查看源代码时，我看到地址字段是这样的:

<input id="user_address_street" name="user[address][street]" size="30" type="text" />

我看到的个人资料部分:

<input id="user_profile_attributes_first_name" name="user[profile_attributes][first_name]" size="30" type="text" />

当我保存表单时，用户和个人资料会保存到数据库中，但不会保存地址。显然，我的模型关系可能做错了，但我不知道如何解决这个问题。

如有任何帮助，我们将不胜感激。

Answer 1

改变这个:

 <%=f.fields_for :address do |address_form| %>

对此:

<%=profile_form.fields_for :address do |address_form| %>