Hartl Rails教程第8章 – 无法注销Sample_App。 所有的rspec测试都通过了
我非常感谢任何帮助，以确定为什么我不能退出我的示例应用程序。 *我的所有rspec测试都通过了。 *当我注销我的本地服务器时，单击注销，我没有注销，并且链接没有更改为登录（尽管这是一个rspec测试通过）。
以下是authentication_pages_spec.rb中的相关测试
require 'spec_helper' describe "AuthenticationPages" do subject { page } describe "signin page" do before { visit signin_path } it { should have_selector('h1', text: 'Sign in') } it { should have_selector('title', text: 'Sign in') } end describe "signin" do before { visit signin_path } describe "with invalid information" do before { click_button "Sign in" } it { should have_selector('title', text: 'Sign in') } it { should have_selector('div.alert.alert-error', text: 'Invalid') } describe "after visiting another page" do before {click_link "Home" } it { should_not have_selector('div.alert-error') } end end describe "with valid information" do let(:user) { FactoryGirl.create(:user) } before do fill_in "Email", with: user.email fill_in "Password", with: user.password click_button "Sign in" end it { should have_selector('title', text: user.name) } it { should have_link('Profile', href: user_path(user)) } it { should have_link('Sign out', href: signout_path) } it {should_not have_link('Sign in', href: signin_path) } describe "followed by signout" do before { click_link "Sign out" } it { should have_link ('Sign in') } end end end end 这是sessions_controller.rb
class SessionsController < ApplicationController def new end def create user = User.find_by_email(params[:session][:email]) if user && user.authenticate(params[:session][: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_path end end
这是sessions_helper.rb
module SessionsHelper def sign_in(user) cookies.permanent[:remember_token] = user.remember_token self.current_user = user end def signed_in? !self.current_user.nil? end def current_user=(user) @current_user = 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 end
这是_header.html.erb
最后，这是模型user.rb
class User < ActiveRecord::Base attr_accessible :name, :email, :password, :password_confirmation has_secure_password before_save { |user| user.email = user.email.downcase } before_save :create_remember_token validates :name, presence: true, length: { maximum: 50 } VALID_EMAIL_REGEX = /\A[\w+\-.]+@[az\d\-.]+\.[az]+\z/i validates :email, presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness: { case_sensitive: false } validates :password, presence: true, length: { minimum: 6 } validates :password_confirmation, presence: true private def create_remember_token self.remember_token = SecureRandom.urlsafe_base64 end end
这是我的WEBrick服务器所说的：
Started DELETE "/signout" for 127.0.0.1 at 2012-06-19 10:58:53 -0400 Processing by SessionsController#destroy as HTML Parameters: {"authenticity_token"=>"qP1xAF4YXTaFmjeHxS5SgvUx+6+c6us5AL4jqgEBeqQ="} Redirected to http://localhost:3000/ Completed 302 Found in 1ms (ActiveRecord: 0.0ms) Started GET "/" for 127.0.0.1 at 2012-06-19 10:58:53 -0400 Processing by StaticPagesController#home as HTML Rendered static_pages/home.html.erb within layouts/application (0.6ms) Rendered layouts/_shim.html.erb (0.1ms) User Load (0.3ms) SELECT "users".* FROM "users" WHERE "users"."remember_token" IS NULL LIMIT 1 Rendered layouts/_header.html.erb (3.1ms) Rendered layouts/_footer.html.erb (0.5ms) Completed 200 OK in 22ms (Views: 21.2ms | ActiveRecord: 0.3ms) [2012-06-19 10:58:53] WARN Could not determine content-length of response body. Set content-length of the response or set Response#chunked = true Started GET "/assets/application.css?body=1" for 127.0.0.1 at 2012-06-19 10:58:53 -0400 Served asset /application.css - 304 Not Modified (11ms) [2012-06-19 10:58:53] WARN Could not determine content-length of response body. Set content-length of the response or set Response#chunked = true
如果这里的cookie存在问题，那么当我在浏览器中检查cookie时会发生什么：
检查cookie：1。我清除所有cookie 2.转到localhost：3000。 我仍然以用户2的身份登录。我检查了cookie，我没有本地主机的remember_token。 我有一个名为“_sample_app_session”的cookie 3.点击退出。 没有任何事情发生，仍然登录.4。输入/登录。 以用户3登录5.我现在有一个cookies中的remember_token。 6.单击“注销”。 仍然显示我签署了顶级导航。 7.我点击个人资料查看我以用户2身份登录（通过调试）8。我检查cookie并记住令牌消失了，我仍然有_sample_app_session
你有什么方法可以测试可能导致这种情况的原因吗？ 我真的想解决这个问题，所以我可以继续学习本教程。
哦，我也遇到了同样的问题。 即使我也是为了拉扯我的头发。 然后我的一个朋友注意到了代码并帮助了我。 问题是你只是错过了从RAILS CONSOLE添加记忆令牌。 只需检查黄瓜上面的部分是可选的。 您将注意到要从rails控制台添加令牌的部件。
rails console
User.first.remember_token
=>无
User.all.each {| user | user.save（validate：false）}
User.first.remember_token
确保在推送到heroku后迁移数据库。 我有一个类似的问题，它在我运行后消失了：
$ heroku run rake db:migrate