Question

查看

<%= form_for @product, :url => admin_products_path do |f| %>
<div>  
  <%= f.label :name %>  
  <%= f.text_field :name %>
</div>

<div>
  <%= f.label :description %>
  <%= f.text_area :description, :rows => 7 %>
</div>
<%= f.fields_for :address do |a| %>
  <p><%= a.label "Address One" %><br />
    <%= a.text_field :address_one %></p>

  <p><%= a.label "Address Two" %><br />
    <%= a.text_field :address_two %></p>

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

  <p><%= a.label :postcode %><br />
    <%= a.text_field :postcode %></p>

    <p><%= a.label :country %><br />
    <%= a.select :country_id, Country.active.collect {|p| [ p.printable_name, p.id ] } %></p>
<% end %>
<% end %>

控制器

 def create
   @product = Product.new(params[:product])
    if @product.save
      flash[:notice] = 'Product was successfully created.'
      render 'show'
    else
      render 'new'
    end
  end

模型

class Product < ActiveRecord::Base
  has_one :address, :as => :addressable    
end

但保存数据时显示问题：
Address(#93165130) expected,got ActiveSupport::HashWithIndifferentAccess(#79365750)

请帮我解决这个问题

Answer 1

尝试添加accepts_nested_attributes_for :address解决此问题。

Answer 2

accepts_nested_attributes_for :address

如果不起作用，请尝试同时添加accepts_nested_attributes_for：地址

attr_accessor :address

轨道上的关联问题3

2 个答案: