Question

我已关注此LINK

但它没有保存关联。

我的模特是：

class Shift < ActiveRecord::Base
      has_many :week_shifts, :dependent => :destroy
      has_many :weeks, :through => :week_shifts, :dependent => :destroy    
      accepts_nested_attributes_for :weeks
    end

    class Week < ActiveRecord::Base 
      has_many :week_shifts, :dependent => :destroy
      has_many :shifts, through: :week_shifts, :dependent => :destroy   
    end

    class WeekShift < ActiveRecord::Base  
      belongs_to :week
      belongs_to :shift
    end

并且_form是：

  <% @weeks = Week.find(:all) %>
  <% @weeks.each do |week| %>
   <div class="field">
    <%= check_box_tag 'week_ids[]', week.id, @shift.weeks.include?(week) %>
    <%= week.day %>
   </div>
  <% end %>
  <%= hidden_field_tag 'week_ids[]', '' %>

输出是这个

在布局/应用程序中渲染shift / edit.html.erb（109.3ms）在119ms完成200 OK（浏览次数：44.4ms | ActiveRecord：73.0ms）在2014-01-23 06:46:58开始为127.8.96.129开始PATCH“/ shifting / 3” -0500由ShiftsController处理#update更新为HTML参数：{“utf8”=＆gt;“✓”， “authenticity_token”=＆gt; “中Ltd3Ln5YJcRf40wQiPeGC + rRVeeGTpU + X1pUGjxbN6M =”， “shift”=＆gt; {“cod”=＆gt;“CN”，“nome”=＆gt;“Centrale Notte”，“descr”=＆gt;“Operatore Centrale Notte“，”stato“=＆gt;”1“，”inizio（4i）“=＆gt;”00“，”inizio（5i）“=＆gt;”00“， “fine（4i）”=＆gt;“08”，“fine（5i）”=＆gt;“00”}，“week_ids”=＆gt; [“1”，“2”，“3”，“4”， “”]，“提交”=＆gt;“更新转换”，“id”=＆gt;“3”}

Answer 1

您似乎需要对week_ids的表单输入进行限定，以便它们成为shift参数的一部分。目前它的发布方式如下：

{
  "shift"=>{
    "cod"=>"CN",
    "nome"=>"Centrale Notte",
    "descr"=>"Operatore Centrale Notte",
    "stato"=>"1",
    "inizio(4i)"=>"00",
    "inizio(5i)"=>"00",
    "fine(4i)"=>"08",
    "fine(5i)"=>"00"
  },
  "week_ids"=>["1", "2", "3", "4", ""]
}

它应该像：

{
  "shift"=>{
    "cod"=>"CN",
    "nome"=>"Centrale Notte",
    "descr"=>"Operatore Centrale Notte",
    "stato"=>"1",
    "inizio(4i)"=>"00",
    "inizio(5i)"=>"00",
    "fine(4i)"=>"08",
    "fine(5i)"=>"00",
    "week_ids"=>["1", "2", "3", "4", ""]
  }
}

所以你的表格应该有这个：

<%= check_box_tag 'shift[week_ids][]', week.id, @shift.weeks.include?(week) %>

has_many：通过不保存关联

1 个答案: