ruby-on-rails - activeadmin で [作成] をクリックすると、一括割り当てエラーが発生します

Question

だから私はアクティブな管理者を持っています。顧客モデルと住所モデルがあります。私は顧客にネストされた住所を持っています。[顧客の作成] をクリックすると、一括割り当てエラーが発生します。

エラー

ActiveModel::MassAssignmentSecurity::Error in Admin::CustomersController#create

Can't mass-assign protected attributes: address

顧客モデル

class Customer < ActiveRecord::Base
    attr_accessible :name, :email, :phone, :addresses_attributes
  has_many :addresses
  accepts_nested_attributes_for :addresses, :allow_destroy => true
end

住所モデル

class Address < ActiveRecord::Base
    attr_accessible :street, :city, :state, :zip, :customer_id
  belongs_to :customer
  has_one :customer_id
end

カスタマーコントローラー

ActiveAdmin.register Customer do
    # Menu item
  menu :label => "Customers", :parent => "Administration"

  filter :name
  filter :created_at
  filter :updated_at


  index do
    column :name
  end

    form :partial => "form"

  show :title => :name do
      panel "Customer Details" do
          attributes_table_for resource do
            row :name
            row :email
            row :phone
          end
        text_node(render :partial => "admin/addresses/show", :locals => { :address => resource.address })
      end
    end
end

ビュー/管理者/顧客/_form.html.erb

  <%=
semantic_form_for [:admin, @customer], :builder => ActiveAdmin::FormBuilder do |f| 
      f.inputs "Customer Information" do 
        f.input :name 
        f.input :email
        f.input :phone
        end 
        render :partial => "admin/addresses/form", :locals => { :form => f } 
          f.buttons 
    end
%>

ビュー/管理者/アドレス/_form.html.erb

<%=
form.inputs "Address" do 
  form.semantic_fields_for :address do |address| 
    address.inputs :class => "" do 
      address.input :street 
      address.input :city 
      address.input :state
      address.input :zip, as: :string
    end 
  end 
end 
%>

ビュー/管理者/アドレス/_show.html.erb

<div class="panel">
    <h3>Address</h3>
    <div class="panel_contents">
      <div id="attributes_table_employee_1" class="attributes_table">
        <table cellspacing="0" cellpadding="0" border="0">
          <tbody>
          <tr>
            <th>Street</th>
            <td><%= address.street.blank? ? raw('<span class="empty"></span>') : address.street %></td>
          </tr>
          <tr>
            <th>City</th>
            <td><%= address.city.blank? ? raw('<span class="empty">Empty</span>') : address.city %></td>
          </tr>
          <tr>
            <th>State</th>
            <td><%= address.state.blank? ? raw('<span class="empty">Empty</span>') : address.state %></td>
          </tr>
          <tr>
            <th>Zip</th>
            <td><%= address.zip.blank? ? raw('<span class="empty">Empty</span>') : address.zip %></td>
          </tr>
        </tbody></table>
      </div>
    </div>
  </div>