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我有一个嵌套的用户注册表单。我想为 3 个模型插入数据。User,Store和Preference. 关系是 aUser has_many :stores和has_one :preference。

我遇到的问题是隐藏字段没有出现在我的视图中。我没有正确使用@user.restaurants.build吗？@user.build_preference

这是我的模型：

class User < ActiveRecord::Base
  attr_accessible :email, :full_name, :password, :password_confirmation
  has_secure_password

  validates_uniqueness_of :email
  validates_presence_of :full_name

  has_many :stores, :dependent => :destroy
  has_one :preference, :dependent => :destroy

  accepts_nested_attributes_for :stores
  accepts_nested_attributes_for :preference
end

class Store < ActiveRecord::Base
  attr_accessible  :name, :tagline, :address, :city, :postal, :state, :phone, :hours, :user_id

  belongs_to :user
end

class Preference < ActiveRecord::Base
  attr_accessible :background_fill, :background_position, :body_color, :body_font, :body_size, :heading_color, :heading_font, :heading_size, :layout, :link_color, :logo_color, :logo_size, :logo_font

  belongs_to :user
end

我的用户控制器：

class UsersController < ApplicationController

def new
  @user = User.new
  @user.stores.build
  @user.build_preference
end

我的观点：

<%= form_for @user do |f| %>
  <% if @user.errors.any? %>
  <div class="error_messages">
    <h2>There was an error!</h2>
    <ul>
      <% @user.errors.full_message.each do |message| %>
        <li><%= message %></li>
      <% end %>
    </ul>
  </div>
  <% end %>
  <%= f.label :full_name %>
  <%= f.text_field :full_name, :class => "target", :placeholder => "Your full name", :maxlength => "55", :autofocus => "autofocus" %>
  <%= f.label :email %>
  <%= f.email_field :email, :class => "target", :placeholder => "example@gmail.com", :maxlength => "55" %>
  <%= f.label :password %>
  <%= f.password_field :password, :class => "target", :placeholder => "Enter a password", :maxlength => "55" %>
  <%= f.label :password_confirmation, "Confirmation" %>
  <%= f.password_field :password_confirmation, :class => "target", :placeholder => "Enter your password again", :maxlength => "55" %>
  <% f.fields_for :stores do |builder| %>
    <%= builder.hidden_field :name, value: params[:name] %>
    <%= builder.hidden_field :tagline, value: params[:tagline] %>
    <%= builder.hidden_field :address, value: params[:address] %>
    <%= builder.hidden_field :city, value: params[:city] %>
    <%= builder.hidden_field :state, value: params[:state] %>
    <%= builder.hidden_field :postal, value: params[:postal] %>
    <%= builder.hidden_field :phone, value: params[:phone] %>
    <%= builder.hidden_field :hours, value: params[:hours] %>
  <% end %>
  <% f.fields_for :preference do |builder| %>
    <%= builder.hidden_field :layout, value: params[:layout] %>
    <%= builder.hidden_field :background_fill, value: params[:background_fill] %>
    <%= builder.hidden_field :background_position, value: params[:background_position] %>
  <% end %>
  <%= f.submit "Create an Account for Free", :class => "button cta" %>
<% end %>

另外，如果有任何帮助，我正在尝试遵循 Railscast 上的本教程：http ://railscasts.com/episodes/196-nested-model-form-part-1

谢谢！

4

2 回答 2

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我对 Rails 相当陌生，但我认为 build 应该在 create 操作中。

@user.stores.build(params[:user][:stores])

我猜是因为我没有尝试构建这样的视图我通常在步骤中创建用户创建用户然后通过构建创建关联

于 2013-02-01T20:21:09.713 回答
0 
<% f.fields_for :preference do |builder| %>

这需要

<%= f.fields_for :preference do |builder| %>

您对 的其他调用也是如此f.fields_for。

资料来源：API

于 2013-02-01T20:34:46.630 回答