似乎我无法弄清楚如何在Michael Hartl railstutorial示例应用程序的导航栏菜单上显示“登录”按钮。
我目前正在使用9.3并且正在进行测试失败。我已经尝试回过每个不同的章节，找出我丢失登录按钮的位置或者如何...我已经重写了大部分希望解决问题的代码。无论如何这里是我的代码。
我也注意到以登录用户身份退出后，我的下拉菜单无法继续显示。
反正..
my _header.html.erb
<header class="navbar navbar-fixed-top navbar-inverse">
<div class="navbar-inner">
<div class="container">
<%= link_to "sample app", root_path, id: "logo" %>
<nav>
<ul class="nav pull-right">
<li><%= link_to "Home", root_path %></li>
<li><%= link_to "Help", help_path %></li>
<% if signed_in? %>
<li><%= link_to "Users", 'users_path' %></li>
<li id="fat-menu" class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">
Account <b class="caret"></b>
</a>
<ul class= "dropdown-menu">
<li><%= link_to "Profile", current_user %></li>
<li><%= link_to "Settings", edit_user_path(current_user) %></li>
<li class="divider"></li>
<li>
<%= link_to "Sign out", signout_path, method: "delete" %>
</li>
</ul>
</li>
<% else %>
<li><% link_to "Sign in", signin_path %></li>
<% end %>
</ul>
</nav>
</div>
和我的application.html.erb
<!DOCTYPE html>
<html>
<head>
<title><%= full_title(yield(:title)) %></title>
<%= stylesheet_link_tag "application", media: "all" %>
<%= javascript_include_tag "application" %>
<%= csrf_meta_tags %>
<%= render 'layouts/shim' %>
</head>
<body>
<%= render 'layouts/header' %>
<div class="container">
<% flash.each do |key, value| %>
<div class="alert alert-<%= key %>"><%= value %></div>
<% end %>
<%= yield %>
<%= render 'layouts/footer' %>
<%= debug(params) if Rails.env.development? %>
</div>
</body>
</html>
的application.js
// This is a manifest file that'll be compiled into application.js, which will includeall the files
// listed below.
//
// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
// or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path.
//
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
// the compiled file.
//
// WARNING: THE FIRST BLANK LINE MARKS THE END OF WHAT'S TO BE PROCESSED, ANY BLANK LINE SHOULD
// GO AFTER THE REQUIRES BELOW.
//
//= require jquery
//= require jquery_ujs
//= require bootstrap
//= require turbolinks
//= require_tree .
的routes.rb
SampleApp::Application.routes.draw do
resources :users
resources :sessions, only: [:new, :create, :destroy]
root to: 'static_pages#home'
match '/signup', to:'users#new'
match '/signin', to: 'sessions#new'
match '/signout', to: 'sessions#destroy', via: 'delete'
match '/help', to: 'static_pages#help'
match '/about', to: 'static_pages#about'
match '/contact', to: 'static_pages#contact'
end
authemtication_pages_spec.rb
require 'spec_helper'
describe "Authentication" 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: full_title('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: full_title('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.alert-error') }
end
end
describe "valid information" do
let (:user) { FactoryGirl.create(:user) }
before { sign_in user }
it { should have_selector('title', text: full_title(user.name)) }
it { should have_link('Profile', href: user_path(user)) }
it { should have_link('Settings', href: edit_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', href: signin_path) }
end
end
describe "authorization" do
describe "for non-signed-in users" do
let(:user) { FactoryGirl.create(:user) }
describe "in the Users controller" do
before { visit edit_user_path(user) }
it { should have_selector('title', text: full_title('Sign in')) }
end
describe "submitting to the update action" do
before { patch user_path (user) }
specify { expect(response_.to redirect_to(signin_path)) }
end
end
end
end
end
users_controller.rb
require 'spec_helper'
describe "User pages" do
subject { page }
describe "profile page" do
let(:user) { FactoryGirl.create(:user) }
before { visit user_path(user) }
it { should have_selector('h1', text: user.name) }
it { should have_selector('title', text: user.name) }
端
describe "signup page" do
before { visit signup_path }
it { should have_selector('h1', text: 'Sign up') }
it { should have_selector('title', text: full_title('Sign up')) }
端
describe "signup" do
before { visit signup_path }
let(:submit) { "Create my account" }
describe "with valid information" do
before do
fill_in "Name", with: "Example User"
fill_in "Email", with: "user@example.com"
fill_in "Password", with: "foobar"
fill_in "Confirmation", with: "foobar"
end
it "should create a user" do
expect { click_button submit }.to change(User, :count).by(1)
end
describe "after saving the user" do
before { click_button submit }
let(:user) { User.find_by_email('user@example.com') }
it { should have_link('Sign out') }
it { should have_selector('title', text: user.name) }
it { should have_selector('div.alert.alert-success', text: 'Welcome') }
end
end
end
describe "edit" do
let(:user) { FactoryGirl.create(:user) }
before do
sign_in user
visit edit_user_path(user)
end
describe "page" do
it { should have_content("Update your profile") }
it { should have_selector('title', text: full_title('Edit user'))}
it { should have_link('change', href: 'http://gravatar.com/emails') }
end
describe "with invalid information" do
before { click_button "Save changes" }
it { should have_content('error') }
end
describe "with valid information" do
let(:new_name) { "New Name" }
let(:new_email) { "new@example.com" }
before do
fill_in "Name", with: new_name
fill_in "Email", with: new_email
fill_in "Password", with: user.password
fill_in "Confirmation", with: user.password
click_button "Save changes"
end
it { should have_selector('title', text: new_name) }
it { should have_selector('div.alert.alert-success') }
it { should have_link('Sign out', href: signout_path) }
specify { expect(user.reload.name).to eq new_name}
specify { expect(user.reload.email).to eq new_email}
end
end
end
的Gemfile
source 'https://rubygems.org'
# ruby '2.0.0'
# Commented out , on version of Ruby 1.9.3
gem 'rails', '3.2.13'
gem 'bootstrap-sass', '2.1'
gem 'bcrypt-ruby', '3.0.1'
# Bundle edge Rails instead:
# gem 'rails', :git => 'git://github.com/rails/rails.git'
group :development, :test do
gem 'sqlite3', '1.3.5'
gem 'rspec-rails', '2.11.0'
end
# Gems used only for assets and not required
# in production environments by default.
group :assets do
gem 'sass-rails', '~> 3.2.5'
gem 'coffee-rails', '~> 3.2.2'
gem 'uglifier', '1.2.3'
end
# See https://github.com/sstephenson/execjs#readme for more supported runtimes
# gem 'therubyracer', :platforms => :ruby
gem 'turbolinks', '1.3.0'
gem 'jquery-rails', '2.0.2'
group :test do
gem 'capybara', '1.1.2'
gem 'factory_girl_rails', '4.2.1'
end
group :production do
gem 'pg', '0.12.2'
end
# To use ActiveModel has_secure_password
# gem 'bcrypt-ruby', '~> 3.0.0'
# To use Jbuilder templates for JSON
# gem 'jbuilder'
# Use unicorn as the app server
# gem 'unicorn'
# Deploy with Capistrano
# gem 'capistrano'
# To use debugger
# gem 'debugger'
我可能错过了一些必要的文件。请让我知道如何帮助任何可能提供帮助的人。
谢谢！
答案 0 :(得分：3)
你会讨厌这个，但这很简单。
<%= link_to "Sign in", signin_path %>
会将代码中返回的内容放入HTML中，而
<% link_to "Sign in", signin_path %> # (note the lack of an equals sign)
只会执行代码而不显示它。
因此，您需要使用<%= %>而不是<% %>。
只需添加一个等号！
<强>更新
如果你的退出信息在你退出后没有显示，那么你明确告诉它不要通过把它放在登录时显示的循环部分来显示：
<% if signed_in? %>
# Show this code when signed in (this is where your dropdown is)
<% else %>
# Show this code when not signed in (this is where your login button is)
<% end %>