The Depot Application

11.2 Iteration F2: Logging in

rails generate controller admin login logout index

      create  app/controllers/admin_controller.rb

       route  get "admin/index"

       route  get "admin/logout"

       route  get "admin/login"

      invoke  erb

      create    app/views/admin

      create    app/views/admin/login.html.erb

      create    app/views/admin/logout.html.erb

      create    app/views/admin/index.html.erb

      invoke  test_unit

      create    test/functional/admin_controller_test.rb

      invoke  helper

      create    app/helpers/admin_helper.rb

      invoke    test_unit

      create      test/unit/helpers/admin_helper_test.rb

edit app/controllers/admin_controller.rb

class AdminController < ApplicationController

  # just display the form and wait for user to

  # enter a name and password

  def login

    if request.post?

      user = User.authenticate(params[:name], params[:password])

      if user

        session[:user_id] = user.id

        redirect_to(:action => "index")

      else

        flash.now[:notice] = "Invalid user/password combination"

end

end

end

  def logout

    session[:user_id] = nil

    flash[:notice] = "Logged out"

    redirect_to(:action => "login")

end

  def index

    @total_orders = Order.count

end

end

edit app/views/admin/login.html.erb

<div class="depot-form">

  <%= form_tag do %>

    <fieldset>

      <legend>Please Log In</legend>

      <div>

        <label for="name">Name:</label>

        <%= text_field_tag :name, params[:name] %>

      </div>

      <div>

        <label for="password">Password:</label>

        <%= password_field_tag :password, params[:password] %>

      </div>

      <div>

        <%= submit_tag "Login" %>

      </div>

    </fieldset>

  <% end %>

</div>

edit app/views/admin/index.html.erb

<h1>Welcome</h1>

It's <%= Time.now %>

We have <%= pluralize(@total_orders, "order") %>.

get /admin/login

post /admin/login

You are being redirected.

get http://localhost:3000/admin/index

Welcome

It's Fri Jun 29 15:13:05 -0400 2012 We have 1 order.