Unit 9

Chapter 5: Admins Login

New Branch

Enter the command "git checkout -b 09-05-admins_login".

Integration Test

Enter the command "rails generate integration_test admins_login".
Replace the contents of the file test/integration/admins_login_test.rb with the following code:

# rubocop:disable Metrics/AbcSize

require 'test_helper'

class AdminsLoginTest < ActionDispatch::IntegrationTest
  def post_admin_login(username)
    # Flash
    assert page.has_text?('Signed in successfully.')

    # Successful login -> home page
    assert page.has_css?('title', text: full_title(''), visible: false)
    assert page.has_css?('h1', text: 'Home')

    # Special message on home page
    assert page.has_text?("You are logged in as an admin (#{username}).")

    # No "Sign up now!" button
    assert_not page.has_link?('Sign up now!', href: new_user_registration_path)

    # No login option available
    assert_not page.has_link?('Login', href: new_user_session_path)
  end

  test 'User login page provides access to admin login page' do
    visit root_path
    assert_not page.has_text?('You are logged in')
    click_on 'Login'
    assert page.has_link?('Admin Login', href: new_admin_session_path)
  end

  test 'Admin login page has expected content' do
    visit new_admin_session_path
    assert page.has_css?('title', text: full_title('Admin Login'), visible: false)
    assert page.has_css?('h1', text: 'Admin Login')

    # No sign up option available
    assert_not page.has_link?('Sign up', href: new_admin_registration_path)
  end

  test 'Unsuccessful super admin login, no remembering' do
    login_admin('ewoods', 'Yale Law School', false)
    assert page.has_text?('Invalid Username or password.')
  end

  test 'Unsuccessful regular admin login, with remembering' do
    login_admin('ewoods', 'Yale Law School', true)
    assert page.has_text?('Invalid Username or password.')
  end

  test 'Successful super admin login and logout, no remembering' do
    login_admin('ewoods', 'endorphins', false)
    post_admin_login('ewoods')
    click_on 'Logout'
    assert page.has_text?('Signed out successfully.')
  end

  test 'Successful regular admin login and logout, no remembering' do
    login_admin('pbonafonte', "Neptune's Beauty Nook", false)
    post_admin_login('pbonafonte')
    click_on 'Logout'
    assert page.has_text?('Signed out successfully.')
  end

  test 'Successful super admin login and logout, with remembering' do
    login_admin('ewoods', 'endorphins', true)
    post_admin_login('ewoods')
    click_on 'Logout'
    assert page.has_text?('Signed out successfully.')
  end

  test 'Successful regular admin login and logout, with remembering' do
    login_admin('pbonafonte', "Neptune's Beauty Nook", true)
    post_admin_login('pbonafonte')
    click_on 'Logout'
    assert page.has_text?('Signed out successfully.')
  end
end

# rubocop:enable Metrics/AbcSize

Enter the command "sh build_fast.sh". All 8 of these integration tests should fail.
Enter the command "alias test1='(command in test results minus the TESTOPTS portion)'.
Enter the command "test1" to implement the new tests only. Again, all 8 of these integration tests should fail. Six of the tests fail because the login_admin method is undefined, one test fails because the user login page lacks a link to the admin login page, and one test fails because the admin login page lacks the expected content.
Go to the local admin login page at http://localhost:3000/admins/sign_in. (Replace the "localhost" and "3000" if necessary.) You should see a generic Devise login page with the controller "devise/sessions" and the action "new".

Test Helper

Add the following lines to the end of the test/test_helper.rb file:

# rubocop:disable Metrics/MethodLength
def login_admin(str_uname, str_pwd, status_remember)
  visit root_path
  click_on 'Login'
  click_on 'Admin Login'
  fill_in('Username', with: str_uname)
  fill_in('Password', with: str_pwd)
  if status_remember == true
    check('Remember me')
  else
    uncheck('Remember me')
  end
  click_button('Log in')
end
# rubocop:enable Metrics/MethodLength

Enter the command "test1". Again, the 8 new integration tests fail. Seven tests fail because the link from the user login page to the admin login page is missing, and one test fails because the admin login page does not have the expected content.

User Login Page

Now it's time to provide access to the admin login page through the user login page.
Add the following lines to the end of the file app/views/users/sessions/new.html.erb:

<b>
<%= link_to "Admin Login", new_admin_session_path %><br />
</b>

Enter the command "test1". One test passes, but the other seven fail due to missing content on the admin login page.

Routing

Edit the config/routes.rb file and replace the admin section with the following:

  # BEGIN: admin
  devise_for :admins,
             controllers: { registrations: 'admins/registrations',
                            sessions: 'admins/sessions' }
  # END: admin

In your web browser, refresh the admin login page. You'll still see the generic Devise sign in page, but the controller is now "admins/sessions".

Admin Login Form

Replace the contents of the file app/views/admins/sessions/new.html.erb with the following:

<% provide(:title, 'Admin Login') %>

<h1>Admin Login</h1>
<div class="row">
  <div class="col-md-6 col-md-offset-3">

    <%= form_for(resource, as: resource_name, url: session_path(resource_name)) do |f| %>
      <div class="field">
        <%= f.label :username %><br />
        <%= f.text_field :username, autofocus: true %>
      </div>

      <div class="field">
        <%= f.label :password %><br />
        <%= f.password_field :password, autocomplete: "off" %>
      </div>

      <div class="field">
        <%= f.label :remember_me, class: "checkbox inline" do %>
          <%= f.check_box :remember_me %>
          <br>
          <span>Remember me on this computer (check the above box)</span>
        <% end %>
      </div>

      <div class="actions">
        <%= f.submit "Log in" %>
      </div>
    <% end %>

    <%= render "admins/shared/links" %>
    </div>
</div>

- Enter the command "test1". Three of the tests will pass, four of the tests will fail due to missing content on the home page after logging in, and one test will fail because the option of signing up as an admin is available when it shouldn't be.
In your web browser, refresh the admin login page. Now the desired admin login form appears, and you can log in as one of the seeded admins.

Admin Shared Links

Edit the file app/views/admins/shared/_links.html.erb. Remove the "Sign up" link and the entire if statement containing this link, because the general public is not permitted to sign up as admins.
Enter the command "test1". Four of the tests will pass, and the other four will fail due to missing content on the home page after logging in.

Home Page

In the file app/views/static_pages/home.html.erb replace the variable section with the following code:

  <% ######################### %>
  <% # BEGIN: VARIABLE SECTION %>
  <% ######################### %>
  <% if user_signed_in? %>
    <% ##################### %>
    <% # BEGIN: USER SECTION %>
    <% ##################### %>
    You are logged in as a user (<%= current_user.username %>).
    <% ################### %>
    <% # END: USER SECTION %>
    <% ################### %>
  <% elsif admin_signed_in? %>
    <% ###################### %>
    <% # BEGIN: ADMIN SECTION %>
    <% ###################### %>
    You are logged in as an admin (<%= current_admin.username %>).
    <% #################### %>
    <% # END: ADMIN SECTION %>
    <% #################### %>
  <% else %>
    <% ####################### %>
    <% # BEGIN: GENERAL PUBLIC %>
    <% ####################### %>
    <div class="center jumbotron">
      <%= link_to "Sign up now!", new_user_registration_path, class: "btn btn-lg btn-primary" %>
    </div>
    <% ##################### %>
    <% # END: GENERAL PUBLIC %>
    <% ##################### %>
  <% end %>
  <% ####################### %>
  <% # END: VARIABLE SECTION %>
  <% ####################### %>

Enter the command "test1". Now the last 4 tests fail because the Logout link is not available.

Header

In the file app/views/layouts/_header.html.erb, replace the variable section with the following code:

        <%-######################### -%>
        <%-# BEGIN: VARIABLE SECTION -%>
        <%-######################### -%>
        <% if user_signed_in? %>
          <%-##################### -%>
          <%-# BEGIN: USER SECTION -%>
          <%-##################### -%>
          <li>
          <%= link_to 'Logout', destroy_user_session_path, :method=>'delete' %>
          </li>
          <%-################### -%>
          <%-# END: USER SECTION -%>
          <%-################### -%>
        </li>
        <% elsif admin_signed_in? %>
          <%-###################### -%>
          <%-# BEGIN: ADMIN SECTION -%>
          <%-###################### -%>
          <li>
          <%= link_to 'Logout', destroy_admin_session_path, :method=>'delete' %>
          </li>
          <%-#################### -%>
          <%-# END: ADMIN SECTION -%>
          <%-#################### -%>
        <% else %>
          <%-####################### -%>
          <%-# BEGIN: GENERAL PUBLIC -%>
          <%-####################### -%>
          <li><%= link_to 'Login', new_user_session_path %></li>
          <%-##################### -%>
          <%-# END: GENERAL PUBLIC -%>
          <%-##################### -%>
        <% end %>
        <%-####################### -%>
        <%-# END: VARIABLE SECTION -%>
        <%-####################### -%>

Enter the command "test1". Now all of the tests pass.
Enter the command "sh git_check.sh". All tests should pass, and there should be no offenses.
Enter the following commands:

git add .
git commit -m "Added admin login"

Wrapping Up

Enter the command "git push origin 09-05-admins_login".
Go to the GitHub repository and click on the "Compare and pull request" button for this branch.
Accept this pull request to merge it with the master branch, but do NOT delete this branch.
Enter the following commands:

git checkout master
git pull
sh heroku.sh

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09-05-admins_login.md

09-05-admins_login.md

Unit 9

Chapter 5: Admins Login

New Branch

Integration Test

Test Helper

User Login Page

Routing

Admin Login Form

Admin Shared Links

Home Page

Header

Wrapping Up

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09-05-admins_login.md

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09-05-admins_login.md

File metadata and controls

Unit 9

Chapter 5: Admins Login

New Branch

Integration Test

Test Helper

User Login Page

Routing

Admin Login Form

Admin Shared Links

Home Page

Header

Wrapping Up