Question

我刚刚完成了Michael Hartl的Rails教程 - 第9章，但我有下一个问题：

示例数据填充程序中的用户不可见？
“管理员用户”未显示的“删除”链接

我的测试套件全是绿色！

这是我的档案：

应用程序/控制器/ users_controller.rb

class UsersController < ApplicationController
  before_filter :signed_in_user, only: [:index, :edit, :update]
  before_filter :correct_user,   only: [:edit, :update]
  before_filter :admin_user,     only: :destroy

  def index
    @users = User.paginate(page: params[:page])
  end

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

  def new
    @user = User.new
  end

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

  def edit
  end

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

  def destroy
    User.find(params[:id]).destroy
    flash[:success] = "User destroyed."
    redirect_to users_path
  end

  private

    def signed_in_user
      unless signed_in?
        store_location
        redirect_to signin_path, notice: "Please sign in."
      end
    end

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

    def admin_user
      redirect_to(root_path) unless current_user.admin?
    end
end

应用程序/视图/用户/ _user.html.erb

<li>
  <%= gravatar_for user, size: 52 %>
  <%= link_to user.name, user %>
  <% if current_user.admin? && !current_user?(user) %>
    | <%= link_to "delete", user, method: :delete, confirm: "You sure?" %>
  <% end %>
</li>

应用程序/视图/用户/ index.html.erb

<%= provide(:title, 'All users') %>
<h1>All users</h1>

<%= will_paginate %>

<ul class="users">
  <%= render @users %>
</ul>

<%= will_paginate %>

分贝/迁移/ 20130720175658_add_admin_to_users.rb

class AddAdminToUsers < ActiveRecord::Migration
  def change
    add_column :users, :admin, :boolean, default: false
  end
end

分贝/ schema.rb

# encoding: UTF-8
# This file is auto-generated from the current state of the database. Instead
# of editing this file, please use the migrations feature of Active Record to
# incrementally modify your database, and then regenerate this schema definition.
#
# Note that this schema.rb definition is the authoritative source for your
# database schema. If you need to create the application database on another
# system, you should be using db:schema:load, not running all the migrations
# from scratch. The latter is a flawed and unsustainable approach (the more migrations
# you'll amass, the slower it'll run and the greater likelihood for issues).
#
# It's strongly recommended to check this file into your version control system.

ActiveRecord::Schema.define(:version => 20130720175658) do

  create_table "users", :force => true do |t|
    t.string   "name"
    t.string   "email"
    t.datetime "created_at",                         :null => false
    t.datetime "updated_at",                         :null => false
    t.string   "password_digest"
    t.string   "remember_token"
    t.boolean  "admin",           :default => false
  end

  add_index "users", ["email"], :name => "index_users_on_email", :unique => true
  add_index "users", ["remember_token"], :name => "index_users_on_remember_token"

end

LIB /任务/ sample_data.rake

require 'faker'
namespace :db do
  desc "Fill database with sample data"
  task populate: :environment do
    Rake::Task['db:reset'].invoke
    admin = User.create!(name: "Example User",
                         email: "example@railstutorial.org",
                         password: "foobar",
                         password_confirmation: "foobar")
    admin.toggle!(:admin)
    99.times do |n|
      name  = Faker::Name.name
      email = "example-#{n+1}@railstutorial.org"
      password  = "password"
      User.create!(name: name,
                   email: email,
                   password: password,
                   password_confirmation: password)
    end
  end
end

规格/ factories.rb

FactoryGirl.define do
  factory :user do
    sequence(:name)  { |n| "Person #{n}" }
    sequence(:email) { |n| "person_#{n}@example.com"}   
    password "foobar"
    password_confirmation "foobar"

    factory :admin do
      admin true
    end
  end
end

规格/模型/ user_spec.rb

require 'spec_helper'

describe User do

  before do
    @user = User.new(name: "Example User", email: "user@example.com", 
                     password: "foobar", password_confirmation: "foobar")
  end

  subject { @user }

  it { should respond_to(:name) }
  it { should respond_to(:email) }
  it { should respond_to(:password_digest) }
  it { should respond_to(:password) }
  it { should respond_to(:password_confirmation) }
  it { should respond_to(:remember_token) }
  it { should respond_to(:admin) }
  it { should respond_to(:authenticate) }

  it { should be_valid }
  it { should_not be_admin }

  describe "with admin attribute set to 'true'" do
    before { @user.toggle!(:admin) }

    it { should be_admin }
  end

  describe "when name is not present" do
    before { @user.name = " " }
    it { should_not be_valid }
  end

  describe "when email is not present" do
    before { @user.email = " " }
    it { should_not be_valid }
  end

  describe "when name is too long" do
    before { @user.name = "a" * 51 }
    it { should_not be_valid }
  end

  describe "when email format is invalid" do
    invalid_addresses =  %w[user@foo,com user_at_foo.org example.user@foo.]
    invalid_addresses.each do |invalid_address|
      before { @user.email = invalid_address }
      it { should_not be_valid }
    end
  end

  describe "when email format is valid" do
    valid_addresses = %w[user@foo.com A_USER@f.b.org frst.lst@foo.jp a+b@baz.cn]
    valid_addresses.each do |valid_address|
      before { @user.email = valid_address }
      it { should be_valid }
    end
  end

  describe "when email address is already taken" do
    before do
      user_with_same_email = @user.dup
      user_with_same_email.save
    end

    it { should_not be_valid }
  end

  describe "when email address is already taken" do
    before do
      user_with_same_email = @user.dup
      user_with_same_email.email = @user.email.upcase
      user_with_same_email.save
    end

    it { should_not be_valid }
  end

  describe "when password is not present" do
    before { @user.password = @user.password_confirmation = " " }
    it { should_not be_valid }
  end

  describe "when password doesn't match confirmation" do
    before { @user.password_confirmation = "mismatch" }
    it { should_not be_valid }
  end

  describe "when password confirmation is nil" do
    before { @user.password_confirmation = nil }
    it { should_not be_valid }
  end

  describe "with a password that's too short" do
    before { @user.password = @user.password_confirmation = "a" * 5 }
    it { should be_invalid }
  end

  describe "return value of authenticate method" do
    before { @user.save }
    let(:found_user) { User.find_by_email(@user.email) }

    describe "with valid password" do
      it { should == found_user.authenticate(@user.password) }
    end

    describe "with invalid password" do
      let(:user_for_invalid_password) { found_user.authenticate("invalid") }

      it { should_not == user_for_invalid_password }
      specify { user_for_invalid_password.should be_false }
    end
  end

  describe "remember token" do
    before { @user.save }
    its(:remember_token) { should_not be_blank }
  end
end

规格/请求/ authentication_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: '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.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('Users',    href: users_path) }
      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') }
      end
    end
  end

  describe "authorization" do

    describe "for non-signed-in users" do
      let(:user) { FactoryGirl.create(:user) }

      describe "when attempting to visit a protected page" do
        before do
          visit edit_user_path(user)
          fill_in "Email",    with: user.email
          fill_in "Password", with: user.password
          click_button "Sign in"
        end

        describe "after signing in" do

          it "should render the desired protected page" do
            page.should have_selector('title', text: 'Edit user')
          end
        end
      end

      describe "in the Users controller" do

        describe "visiting the edit page" do
          before { visit edit_user_path(user) }
          it { should have_selector('title', text: 'Sign in') }
        end

        describe "submitting to the update action" do
          before { put user_path(user) }
          specify { response.should redirect_to(signin_path) }
        end

        describe "visiting user index" do
          before { visit users_path }
          it { should have_selector('title', text: 'Sign in') }
        end
      end
    end

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

      describe "visiting Users#edit page" do
        before { visit edit_user_path(wrong_user) }
        it { should have_selector('title', text: full_title('')) }
      end

      describe "submitting a PUT request to the Users#update action" do
        before { put user_path(wrong_user) }
        specify { response.should redirect_to(root_path) }
      end
    end

    describe "as non-admin user" do
      let(:user) { FactoryGirl.create(:user) }
      let(:non_admin) { FactoryGirl.create(:user) }

      before { sign_in non_admin }

      describe "submitting a DELETE request to the Users#destroy action" do
        before { delete user_path(user) }
        specify { response.should redirect_to(root_path) }        
      end
    end
  end
end

规格/请求/ user_pages_spec.rb

require 'spec_helper'

describe "User pages" do

  subject { page }

  describe "index" do

    before do
      sign_in FactoryGirl.create(:user)
      FactoryGirl.create(:user, name: "Bob", email: "bob@example.com")
      FactoryGirl.create(:user, name: "Ben", email: "ben@example.com")
      visit users_path
    end

    it { should have_selector('title', text: 'All users') }

    describe "pagination" do
      before(:all) { 30.times { FactoryGirl.create(:user) } }
      after(:all)  { User.delete_all }

      it { should have_link('Next') }
      it { should have_link('2') }

      it "should list each user" do
        User.all[0..2].each do |user|
          page.should have_selector('li', text: user.name)
        end
      end
       it { should_not have_link('delete') }

      describe "as an admin user" do
        let(:admin) { FactoryGirl.create(:admin) }
        before do
          sign_in admin
          visit users_path
        end

        it { should have_link('delete', href: user_path(User.first)) }
        it "should be able to delete another user" do
          expect { click_link('delete') }.to change(User, :count).by(-1)
        end
        it { should_not have_link('delete', href: user_path(admin)) }
      end   
    end
  end

  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) }
  end

  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')) }
  end

  describe "signup" do

    before { visit signup_path }

    describe "with invalid information" do
      it "should not create a user" do
        expect { click_button "Create my account" }.not_to change(User, :count)
      end

      describe "error messages" do
        before { click_button "Create my account" }

        it { should have_selector('title', text: 'Sign up') }
        it { should have_content('error') }
      end
    end

    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 do
          click_button "Create my account"
        end.to change(User, :count).by(1)
      end

      describe "after saving the user" do
        before { click_button "Create my account" }
        let(:user) { User.find_by_email('user@example.com') }

        it { should have_selector('title', text: user.name) }
        it { should have_selector('div.alert.alert-success', text: 'Welcome') }
        it { should have_link('Sign out') }
      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_selector('h1',    text: "Update your profile") }
      it { should have_selector('title', text: "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(:user)      { FactoryGirl.create(:user) }
      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 "Confirm Password", 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 { user.reload.name.should  == new_name }
      specify { user.reload.email.should == new_email }
    end
  end
end

规格/支持/ utilities.rb

def full_title(page_title)
  base_title = "Ruby on Rails Tutorial Sample App"
  if page_title.empty?
    base_title
  else
    "#{base_title} | #{page_title}"
  end
end

def sign_in(user)
  visit signin_path
  fill_in "Email",    with: user.email
  fill_in "Password", with: user.password
  click_button "Sign in"
  # Sign in when not using Capybara as well.
  cookies[:remember_token] = user.remember_token
end

Answer 1

我明白了！

在database.yml中，“test：＆amp; test”的设置被设置为“database：sample_app_development”，这是错误的！正确的设置是：“database：sample_app_test”

感谢Szabolcs Mihail的帮助：）

来自示例数据填充程序（faker）的用户在我的rails应用程序中不可见？

1 个答案: