has_many關聯的'new'和'edit'表單的錯誤

Question

我是Rails的新手，並且遇到了一個問題，我無法包裹頭部。

我用a：belongs_to /：has_many關係創建了2個模型。

class Inning < ActiveRecord::Base 
    belongs_to :match 
end 

class Match < ActiveRecord::Base 
    has_many :innings 
end 

我能夠得到父（匹配）模型正確工作，我也能夠給孩子（局）模型成功鏈接。 我的問題是，我收到一個錯誤，我無法理解或解決每當我嘗試打開新建或編輯窗體。

undefined method `inning_path' for #<#<Class:0x5751888>:0x54d3c08> 

的路由設置如下：

resources :matches do 
    resources :innings 
    end 

任何人都可以提供關於如何解決這個有什麼建議？

謝謝。

UPDATE：

表單代碼：

<%= form_for [@match, @inning] do |f| %> 
    <%= f.error_notification %> 
    <%= f.input(:inning_no) %> 
    <%= f.input(:batting_team) %> 
    <%= f.input(:bowling_team) %> 
    <%= f.input(:score) %> 
    <%= f.button(:submit) %> 
<% end %> 

耙路線：

  Prefix Verb URI Pattern         Controller#Action 
    match_innings GET /matches/:match_id/innings(.:format)   innings#index 
        POST /matches/:match_id/innings(.:format)   innings#create 
new_match_inning GET /matches/:match_id/innings/new(.:format)  innings#new 
edit_match_inning GET /matches/:match_id/innings/:id/edit(.:format) innings#edit 
    match_inning GET /matches/:match_id/innings/:id(.:format)  innings#show 
        PATCH /matches/:match_id/innings/:id(.:format)  innings#update 
        PUT /matches/:match_id/innings/:id(.:format)  innings#update 
        DELETE /matches/:match_id/innings/:id(.:format)  innings#destroy 
      matches GET /matches(.:format)       matches#index 
        POST /matches(.:format)       matches#create 
     new_match GET /matches/new(.:format)      matches#new 
     edit_match GET /matches/:id/edit(.:format)     matches#edit 
      match GET /matches/:id(.:format)      matches#show 
        PATCH /matches/:id(.:format)      matches#update 
        PUT /matches/:id(.:format)      matches#update 
        DELETE /matches/:id(.:format)      matches#destroy 

innings_controller.rb：

class InningsController < ApplicationController 


    before_action :set_match, only: [:index, :new, :create] 
    before_action :set_inning, only: [:show, :edit, :update, :destroy] 


    def index 
    #@innings = Inning.find(params[:match_id]) 
    @innings = @match.innings 
    end 

    def show 
    end 

    def new 
    @inning = @match.innings.new 
    end 
    def create 
    @inning = @match.innings.new(inning_params) 

    respond_to do |format| 
     if @inning.save 
     format.html { redirect_to @inning, notice: 'Inning was successfully created.' } 
     format.json { render action: 'show', status: :created, location: @inning } 
     else 
     format.html { render action: 'new' } 
     format.json { render json: @inning.errors, status: :unprocessable_entity } 
     end 
    end 
    end 

    def edit 
    end 

    def update 
    respond_to do |format| 
     if @inning.update(inning_params) 
     format.html { redirect_to @inning, notice: 'Inning was successfully updated.' } 
     format.json { head :no_content } 
     else 
     format.html { render :edit } 
     format.json { render json: @inning.errors, status: :unprocessable_entity } 
     end 
    end 
    end 

    def destroy 
    @inning.destroy 
    respond_to do |format| 
     format.html { redirect_to match_innings_url } 
     format.json { head :no_content } 
    end 
    end 

    private 
    def set_inning 
     @inning = Inning.find_by_id(params[:id]) 
    end 
    def set_match 
     if params[:match_id] 
     @match = Match.find_by_id(params[:match_id]) 
     end 
    end 
    def inning_params 
     params.require(:inning).permit(:inning_no, :batting_team, :bowling_team, :score, :match_id) 
    end 

end 

Answer 1

將是巨大的查看你的「看法」，但我猜問題是你正在嘗試它：

form_for @inning代替form_for [@match, @inning]

而且在局控制器，你應該是這樣的：

before_action :set_match 

protected 
def set_match 
    @match = Match.find(params[:match_id]) 
end 

Answer 2

既然你嵌套你局下資源相匹配，你的名字路線也將與比賽嵌套。

新局，命名路線將

new_match_inning_path 

你的路由將會像

GET  /matches/:match_id/innings(.:format) innings#index match_innings 
POST /matches/:match_id/innings(.:format) innings#create match_innings 
GET  /matches/:match_id/innings/new(.:format) innings#new new_match_inning 

and etc 

你可以閱讀文檔嵌套資源here