通过父控制器和视图更新嵌套资源？

Question

如何更新其父控制器&视图内的嵌套资源？然后1）更新和

pry(main)> Duel.last #Duel has_many Duelers 
id: 16, 
consequence: "test", 
reward: "test", 
created_at: Wed, 03 Aug 2016 19:01:46 EDT -04:00, 
updated_at: Wed, 03 Aug 2016 19:01:46 EDT -04:00> 
pry(main)> Dueler.last 
id: 26, 
user_id: 78, 
challenge_id: 175, 
created_at: Wed, 03 Aug 2016 19:01:46 EDT -04:00, 
updated_at: Wed, 03 Aug 2016 19:01:46 EDT -04:00, 
duel_id: 16, 
accept: nil> 
pry(main)> Dueler.find(25) 
id: 25, 
user_id: 15, 
challenge_id: 192, 
created_at: Wed, 03 Aug 2016 19:01:46 EDT -04:00, 
updated_at: Wed, 03 Aug 2016 19:01:46 EDT -04:00, 
duel_id: 16, 
accept: nil> 
[15] pry(main)> 

当用户点击用于submit@dueler，@dueler应2）重定向回决斗/显示。

duels_controller.rb

class DuelsController < ApplicationController 
    before_action :set_duel, only: [:show, :edit, :update] 
    respond_to :html 

    def show 
    @dueler = Dueler.find_by(user_id: current_user.id) 
    respond_with(@duel) 
    end 

    def create 
    @duel = Duel.new(duel_params) 
    @duel.save 
    redirect_to duel_request_url(@duel) 
    end 

    private 
    def set_duel 
     @duel = Duel.find(params[:id]) 
    end 

    def duel_params 
     params.require(:duel).permit(:consequence, :reward, duelers_attributes: [:id, :user_id, :challenge_id, :accept]) 
    end 
end 

决斗/显示

<% @duel.duelers.each do |dueler| %> 
    <%= dueler.user.name %> <%= dueler.user.last_name %> will <%= dueler.challenge.name %> 
<% end %> 

The loser(s) will <%= @duel.consequence %><br><br> 
If everyone succeeds they will <%= @duel.reward %><br><br> 

<%= form_for @dueler, :url => { :controller => "duels", :action => "show" }, :html => {:method => :post} do |f| %> 
    Accept? <%= f.check_box :accept %> 
    <%= f.submit %> 
<% end %> 

但是相反在submit我得到的错误：Routing Error No route matches [POST] "/duels/13"。在routes.rb中有resources :duelers resources :duels

Answer 1

你想改变你的方法patch：

<%= form_for @dueler, :url => { :controller => "duels", :action => "show" }, :html => {:method => :patch} do |f| %> 

如果你看一看的documentation，resources将为建立一个POST路线。对于更新，使用PATCH方法。