Rails的mongoid三模型关系

Question

我已经在上面蓝色描绘了关系，但是，例如提示许多错误没有方法错误。

A和C之间的嵌入关系（红色）是OKay吗？鉴于另外两种关系。

此外，在路由文件中，我应该嵌套B在A？

请指教，谢谢。

class Trip 
    include Mongoid::Document 
    include Mongoid::Timestamps 

    field :name 
    key :name 

    belongs_to :user 
    has_many :logs 
end 

class Log 
    include Mongoid::Document 
    field :content 
    validates_presence_of :content 
    belongs_to :trip 
    belongs_to :user 
end 

class User 
    include Mongoid::Document 
    has_many :trips 
    has_many :logs 
end 

错误：

NoMethodError in Trips#show 

Showing /home/jason/apps/app/views/trips/show.html.haml where line #17 raised: 

undefined method `logs_path' for #<#<Class:0x9b8a14c>:0x9d3251c> 

控制器：

class TripsController < ApplicationController 
    def show 
    @trip = Trip.find(params[:id]) 
    @log = Log.new 
    @logmsg = @trip.logs 
    end 
end 

class LogsController < ApplicationController 

    def create 
    @log = @trip.logs.build(params[:log]) 
    current_user.logs.build(params[:log]) 

    respond_to do |format| 
     if @log.save 
     format.html { redirect_to @log, notice: 'successfully created.' } 
     else 
     format.html { redirect_to trip_path(@trip) } 
     end 
    end 
    end 

    def destroy 
    I want an ajax destroy here, as the logs will only be shown in the Trips show page. 
    end 
end 

展会 - 车次/ show.html.haml：

= form_for @log do |f| 
    .field 
    = f.label :content 
    = f.text_field :content 
    .actions 
    = f.submit 'Save' 

下面是一个路由文件摘录：

App::Application.routes.draw do 
    resources :trips do 
    resources :logs 
    end 
end 

Answer 1

不，你不能嵌入在ModalCModalA，因为ModelB将无法​​引用嵌入的对象。

嵌入式模型实际上是里面的父文档，不在单独的集合中。