Question

我正在尝试通过表单提交向用户模型添加地址，但我遇到了麻烦。用户：

class User < ActiveRecord::Base 
  has_many :addresses 
end

可以通过帐户控制台控制的帐户页面为其帐户添加地址。

class AccountsController < ApplicationController
   def addresses
       @user = current_user
       @addresses = @user.addresses
       default_country = Country.find Spree::Config[:default_country_id]
       @countries = Checkout.countries.sort
       @states = default_country.states.sort
   end
 end

在“/ accounts / addresses”视图中，我有一个我要提交的表单：

<% form_for @user do |user_form| %>
    <% user_form.fields_for :address do |address_form| %>
            <%= address_form.text_field :firstname, :class => 'required', :value=>"" -%>
            <%= address_form.text_field :lastname, :class => 'required', :value=>"" -%>
            <%= address_form.text_field :business_name, :class => 'required', :value=>"" -%>
            <%= address_form.text_field :address1, :class => 'required', :value=>"" -%>
            <%= address_form.text_field :address2, :value=>"" %>
            <%= address_form.text_field :city, :class => 'required', :value=>"" -%>
            ...
        <%= address_form.submit %>
    <% end -%>
<% end %>

我在这里查看一对多fields_for代码：

http://api.rubyonrails.org/classes/ActionView/Helpers/FormHelper.html#method-i-fields_for

但问题是我有多个地址但只想一次提交一个地址。我需要添加到用户/地址模型和/或帐户控制器中，以便在提交该表单时成功创建地址并将其添加到用户模型中？如果有更简单的方法来实现这一目标，请告诉我。

Answer 1

您需要accepts_nested_attributes_for

class User < ActiveRecord::Base 
  has_many :addresses 
  accepts_nested_attributes_for :addresses
end

你的表格可能是

<% form_for @user do |user_form| %>
    <% user_form.fields_for :addresses do |address_form| %>
            <%= address_form.text_field :firstname, :class => 'required' -%>
            <%= address_form.text_field :lastname, :class => 'required' -%>
            <%= address_form.text_field :business_name, :class => 'required' -%>
            <%= address_form.text_field :address1, :class => 'required' -%>
            <%= address_form.text_field :address2 %>
            <%= address_form.text_field :city, :class => 'required' -%>
            ...
        <%= address_form.submit %>
    <% end -%>
<% end %>

这可以让你编辑所有现有地址，如果你需要在列表中加1，你可以

在控制器操作中

@user.addresses.build填充一个空的。

Rails 2.3.5在使用form_for和fields_for时遇到问题

1 个答案: