Ruby on rails 4 接受\u嵌套的\u属性\u以不创建attr writer方法

我的担保人模型有许多地址，如：addressable，并接受地址的嵌套属性。但是，当白名单地址属性时，params散列不能识别地址属性：[：street，：city等]。我不断得到未经许可的参数地址。有人对此有意见吗

我的模型：

class UserApplication < ActiveRecord::Base
    belongs_to :user
    has_many :guarantors, dependent: :destroy
    accepts_nested_attributes_for :guarantors
end

class Guarantor < ActiveRecord::Base
has_many :addresses, :as => :addressable, dependent: :destroy
belongs_to :user_application, :foreign_key => :user_application_id
accepts_nested_attributes_for :addresses
end

class Address < ActiveRecord::Base
belongs_to :addressable, :polymorphic => true
end

表单的“嵌套”部分：

  <%= f.fields_for :guarantors do |builder| %>
    <div class="row">
      <div class="col-md-1">
        <h6>FIRST NAME</h6>
        <%= builder.text_field :fname, :class => "form-control" %>
      </div>
      <div class="col-md-2">
        <h6>LAST NAME</h6>
        <%= builder.text_field :lname, :class => "form-control" %>
      </div>      
      <div class="col-md-2">
        <h6>RELATIONSHIP</h6>
        <%= builder.text_field :relationship, :class => "form-control" %>
      </div>   
      <div class="col-md-2">
        <h6>PHONE</h6>
        <%= builder.number_field :phone, :class => "form-control" %>
      </div>
      <div class="col-md-2">
        <h6>EMAIL</h6>
        <%= builder.text_field :email, :class => "form-control" %>
      </div>     
    </div>
    <%= f.fields_for :addresses do |builder| %>
        <div class="col-md-1">
          <h6>ADDRESS</h6>
          <%= builder.text_field :street, :class => "form-control" %>
        </div>
        <div class="col-md-2">
          <h6>ADDRESS 2</h6>
          <%= builder.text_field :street_2, :class => "form-control" %>
        </div>      
        <div class="col-md-2">
          <h6>CITY</h6>
          <%= builder.text_field :city, :class => "form-control" %>
        </div>   
        <div class="col-md-2">
          <h6>STATE</h6>
          <%= builder.text_field :state, :class => "form-control" %>
        </div>
        <div class="col-md-2">
          <h6>ZIP</h6>
          <%= builder.number_field :zip, :class => "form-control" %>
        </div>     
      </div> 
    <% end %>
  <% end %>

我一直在获取未经许可的参数地址，而且它也没有嵌套在guarantors\u属性中。有什么想法吗？提前感谢。

当您为：address构建字段时，我想您希望它是builder.fields，因为地址嵌套在担保人下

f.fields_for :guarantors do |builder|
  # fields
  builder.fields_for :addresses do |builder|
    # fields
  end
end

代码清晰度 我还将使块名更加具体，因为有两个构建器变量会混淆您所处的范围

f.fields_for :guarantors do |guarantor_form|
  # fields
  guarantor_form.fields_for :addresses do |address_form|
    # fields
  end
end

---

您不需要：address在担保人类中的accepts\u nested\u attributes\u中为复数吗？如果这还不能解决问题，那么查看表单中的视图会很有帮助，以确保表单设置正确，可以在发送消息时在“*\u attributes”键下传递哈希值是的，编辑问题。复制/粘贴错误，它实际上是：模型中的地址。现在将添加表单…谢谢！问题出在builder.fields_上。谢谢你的代码清晰提示，我还是个新手。

f.fields_for :guarantors do |builder|
  # fields
  builder.fields_for :addresses do |builder|
    # fields
  end
end

f.fields_for :guarantors do |guarantor_form|
  # fields
  guarantor_form.fields_for :addresses do |address_form|
    # fields
  end
end