使用has_one和belongs_to的嵌套路由和form_for和模型

如何使用嵌套路由映射has_one模型以及如何在RESTful数据库之后为/localhost:3000/users/1/profile/new,html.erb添加form_for？

用户有一个个人资料。

楷模

class Profile < ActiveRecord::Base attr_accessible :name, :surname belongs_to :user end class User < ActiveRecord::Base attr_accessible :email, :email_confirmation, :password, :password_confirmation has_secure_password has_one :profile, dependent: :destroy end resources :users do resources :profiles (note: has_one profile) resources :progress_charts resources :calories_journals end 

意见/型材/ new.html.erb

 
About You
 
 
         
  

controller：Profiles_controller.rb我发现了两个错误，因为我不太明白为什么它不起作用。

 class ProfilesController < ApplicationController def index end def show end def new # @user = User.find(params[:id]) # Error message: Couldn't find User without an ID # @profile = @user.build_profile() @profile = current_user.build_profile(params[:id]) # Error message: unknown attributes: user_id end def edit end def create end def update end def destroy end end 

助手：SessionHelper（用于说明current_user）模块SessionsHelper def sign_in（用户）cookies.permanent [：remember_token] = user.remember_token self.current_user =用户端

  def signed_in? !current_user.nil? end def current_user=(user) @current_user = user end def current_user?(user) user == current_user end def current_user @current_user ||= User.find_by_remember_token(cookies[:remember_token]) end def sign_out self.current_user = nil cookies.delete(:remember_token) end def signed_in_user unless signed_in? store_location redirect_to signin_path, notice: "Please sign in." end end end 

Answer 1

您的个人资料表是否具有user_id属性？

在您的路线中，个人资料应该是单数，因为用户有一个个人资料：

 resources :users do resource :profile resources :progress_charts resources :calories_journals end 

到用户配置文件的路由是users/:user_id/profile （而不是users/:user_id/profile/:id

在您的profiles_controller中：

 @profile = current_user.build_profile(params[:id]) # why params[:id]? #it should just be @profile = current_user.build_profile() @user = User.find(params[:user_id]) 

表格将是这样的：

 form_for [@user, @profile] do |f|... end 

你真的希望用户像这样创建他的个人资料吗？ 通常，您会在用户注册时创建配置文件。