Rails与has_many通过关系嵌套模型表单并构建调用

Question

我正在构建一个将创建模型和它的关系的单页表单。我经历了网络上的大量资源以及Railscast上的复杂表单系列，但似乎无法找到解决我的问题的方法。

这是我的。

class Campaign < ActiveRecord::Base 
    has_many :artwork_groups 
    has_many :artwork_locales, :through => :artwork_groups 

    accepts_nested_attributes_for :artwork_groups 
    accepts_nested_attributes_for :artwork_locales 
end 

class ArtworkGroup < ActiveRecord::Base 
    belongs_to :campaign 
    has_many :artwork_locales 
end 

class CampaignsController < ApplicationController 
    def new  
    @campaign = Campaign.new 
    @locales = Locale.all 

    # Build the artowrk groups and locales for the new campaign 
    2.times do 
     @campaign.artwork_groups.build do |ag| 
     @locales.each do |locale| 
      ag.artwork_locales.build(:locale_id => locale.id) 
     end 
     logger.debug ag.artwork_locales 
     end 
    end 

    @games = GameVersion.all(:order => "game_key").group_by(&:game_family).sort_by{|k| k.first.name } 

    respond_to do |format| 
     format.html 
    end 
    end 

在我看来，我有以下的（标记删除）：

<% form_for @campaign, :html => { :multipart => true } do |campaign| %> 

    <%= campaign.error_messages %> 
    <%= flash[:campaign_wizard] %> 

    <%= campaign.label :title %> 
    <%= campaign.text_field :title %> 

    <%= campaign.label :url %> 
    <%= campaign.text_field :url %> 

    <%= campaign.label :start_date %> 
    <%= campaign.text_field :start_date, {:class=>"datetimepicker"} %> 

    <%= campaign.label :end_date %> 
    <%= campaign.text_field :end_date, {:class=>"datetimepicker"} %> 

    <% campaign.fields_for :artwork_groups do |aw| %> 

    <%= aw.label :name, "Artwork Group Name" %> 
    <%= aw.text_field :name %> 

    <% aw.fields_for :artwork_locales do |al| %> 

     <%= al.label :locale_id %> 
     <%= al.text_field :locale_id %> 

     <%= al.label :language %> 
     <%= al.text_field :language %> 

     <%= al.label :upstate %> 
     <%= al.text_field :upstate %> 

    <% end %> 

    <% end %> 

    <%= campaign.submit 'Save Campaign &amp; Publish' %> 

<% end %> 

我得到在我看来，2作品组的部分，但我只让每个作品组一个艺术作品的语言环境。我期待每个我已经加载的区域设置一个。我假设这是has_many通过关系或我的控制器中的嵌套构建调用的问题。

任何帮助将不胜感激。

Answer 1

您是否试过将accepts_nested_attributes_for :artwork_locales添加到ArtworkGroup？