Hartl Rails Tutorial Section 9.2.2 cookie not created

Question

我正在学习 Hartl rails 教程，在第 9 章中，我正在尝试复制测试以将编辑操作限制为当前用户：

require 'spec_helper'

describe "Authentication" do
subject { page }
 ....
 ....
 ....

describe "as wrong user" do
    let(:user) { FactoryGirl.create(:user) }
    let(:wrong_user) { FactoryGirl.create(:user, email: "wrong@example.com") }
    before { sign_in user, no_capybara: true }

    describe "submitting a GET request to the Users#edit action" do
        before { get edit_user_path(wrong_user) }
        specify { expect(response.body).not_to match(full_title('Edit user')) }
        specify { expect(response).to redirect_to(root_url) }
    end

    describe "submitting a PATCH request to the Users#update action" do
        before { patch user_path(wrong_user) }
        specify { expect(response).to redirect_to(root_url) }
    end 
end
end

然后我已经实现了书中描述的代码，但测试仍然失败：

Failures:

  1) Authentication as wrong user submitting a PATCH request to the Users#update action 
     Failure/Error: specify { expect(response).to redirect_to(root_url) }
       Expected response to be a redirect to <http://www.example.com/> but was a redirect to <http://www.example.com/signin>.
       Expected "http://www.example.com/" to be === "http://www.example.com/signin".
     # ./spec/requests/authentication_pages_spec.rb:100:in `block (4 levels) in <top (required)>'

我通过向测试中调用的 sign_in 方法添加一些日志来进行调查：

def sign_in(user, options={})
  Rails.logger.debug "sign_in "+"*"*15
  if options[:no_capybara]
    # Sign in when not using Capybara.
    remember_token = User.new_remember_token
    cookies[:remember_token] = remember_token
      Rails.logger.debug "Created cookie rt: "+ cookies[:remember_token].to_s
    user.update_attribute(:remember_token, User.encrypt(remember_token))

  else
    visit signin_path
    fill_in "Email",    with: user.email
    fill_in "Password", with: user.password
    click_button "Sign in"
  end
end

在日志中，创建 cookie remember_token 报告为空白。如果我将登录更改为sign_in user（没有没有水豚选项），我可以看到用户已登录并填充了 cookie，但是当我访问编辑操作时，cookie 不再填充。

如何进一步调查 cookie 被销毁的原因？

谢谢...

有关信息，我在下面包含了应用程序代码：

users_controller.rb 的内容

   class UsersController < ApplicationController
before_action :signed_in_user, only: [:edit, :update]
before_action :correct_user, only: [:edit, :update]
def new
      @user = User.new
end

def show
@user = User.find(params[:id])
logger.debug "User show: "+ @user.to_yaml
logger.debug "cookie on user show: "+ cookies[:remember_token].to_yaml
end

def create
    @user = User.new(user_params)

    if @user.save
    sign_in @user
    flash[:success] = "Welcome to the Sample App!"
    redirect_to @user
      else
    render 'new'
    end
end

def update
    @user = User.find(params[:id])

    if @user.update_attributes(user_params)
         flash[:success] = "Profile updated"
         sign_in @user
         redirect_to @user
    else
        render 'edit'
    end
end

def edit
        logger.debug "Edit user method"
    @user = User.find(params[:id])
end

private

    def user_params
        params.require(:user).permit(:name, :email, :password,
            :password_confirmation)
    end 

    # Before filters
    def signed_in_user
        si = signed_in?
        logger.debug "*"*200
        logger.debug "signed in user: signed in?: "+si.to_s
        redirect_to signin_url, notice: "Please sign in." unless si
    end

    def correct_user
        @user = User.find(params[:id])
        redirect_to(root_url) unless current_user?(@user)
    end
         end

sessions_controller.rb 的内容

class SessionsController < ApplicationController

        def new
        end

        def create
            user = User.find_by_email(params[:email].downcase)

            if user && user.authenticate(params[:password])
              sign_in user
              redirect_to user
            else
              flash.now[:error] = 'Invalid email/password combination'
              render 'new'
            end  
        end

        def destroy
            sign_out
            redirect_to root_url
        end

    end

session_helper.rb 的内容

module SessionsHelper

    def sign_in(user)
            logger.debug "Sessions Helper sign in Method"
        remember_token = User.new_remember_token
        cookies.permanent[:remember_token] = remember_token
        user.update_attribute(:remember_token, User.encrypt(remember_token))
        self.current_user = user
    end 

    def signed_in?

        s_in = !current_user.nil?
        logger.debug "signed_in?: "+s_in.to_s
        s_in

    end

    def sign_out
        self.current_user = nil
        cookies.delete(:remember_token)
    end

    def current_user=(user)
        @current_user = user
    end

    def current_user
            logger.debug "getting current user"
            logger.debug "cookie: "+ cookies[:remember_token].to_s
        remember_token = User.encrypt(cookies[:remember_token])
            logger.debug "rt: "+ remember_token.to_yaml
            logger.debug "current_user before: "+ @current_user.to_yaml

        @current_user ||= User.find_by(remember_token: remember_token)
            logger.debug "current_user after: "+ @current_user.to_yaml
        @current_user

    end

    def current_user?
        remember_token = User.encrypt(cookies[:remember_token])
        @current_user ||= User.find_by(remember_token: remember_token)
    end

    def current_user?(user)
        user == current_user
    end
end

Answer 1

您的身份验证测试没有问题

users_controller.rb文件中的代码

请从 users_controller.rb 文件的 update method 中删除指示的 () 行。

从错误本身可以清楚地看出，它预计会在 root_ulr 上，但会落在 sign_in_url 上。

发生这种情况是因为您在更新方法中的 users_controller.rb 文件中添加了一行“sign_in @user”。所以根据您的代码，它正在重定向到“sign_in_url" 这是不必要的，因为用户已经登录并更新了他的个人资料。我希望这会有所帮助并解决您的问题。

users_controller.rb 文件中的更新方法

def update
        @user = User.find(params[:id])

        if @user.update_attributes(user_params)
             flash[:success] = "Profile updated"
             sign_in @user  `<----------- Remove this line
             redirect_to @user
        else
            render 'edit'
        end
    end