The Depot Application

The Depot Application

11.2 Iteration F2: Logging in 11.1 Iteration F1: Adding Users

11.2 Iteration F2: Logging in

rails generate controller admin login logout index
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems.rb:14: warning: already initialized constant VERSION
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems.rb:14: warning: already initialized constant RubyGemsVersion
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems.rb:194: warning: already initialized constant MUTEX
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems.rb:196: warning: already initialized constant RubyGemsPackageVersion
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems.rb:202: warning: already initialized constant WIN_PATTERNS
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems.rb:1079: warning: already initialized constant MARSHAL_SPEC_DIR
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems.rb:1084: warning: already initialized constant YAML_SPEC_DIR
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/version.rb:72: warning: already initialized constant VERSION_PATTERN
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/requirement.rb:20: warning: already initialized constant OPS
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/requirement.rb:30: warning: already initialized constant OP_RE
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/version.rb:246: warning: already initialized constant Requirement
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/dependency.rb:18: warning: already initialized constant TYPES
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/platform.rb:171: warning: already initialized constant RUBY
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/platform.rb:177: warning: already initialized constant CURRENT
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/specification.rb:39: warning: already initialized constant NONEXISTENT_SPECIFICATION_VERSION
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/specification.rb:50: warning: already initialized constant CURRENT_SPECIFICATION_VERSION
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/specification.rb:56: warning: already initialized constant SPECIFICATION_VERSION_HISTORY
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/specification.rb:72: warning: already initialized constant MARSHAL_FIELDS
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/specification.rb:75: warning: already initialized constant TODAY
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/source_index.rb:593: warning: already initialized constant Cache
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/config_file.rb:14: warning: already initialized constant DEFAULT_BACKTRACE
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/config_file.rb:15: warning: already initialized constant DEFAULT_BENCHMARK
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/config_file.rb:16: warning: already initialized constant DEFAULT_BULK_THRESHOLD
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/config_file.rb:17: warning: already initialized constant DEFAULT_VERBOSITY
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/config_file.rb:18: warning: already initialized constant DEFAULT_UPDATE_SOURCES
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/config_file.rb:24: warning: already initialized constant OPERATING_SYSTEM_DEFAULTS
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/config_file.rb:30: warning: already initialized constant PLATFORM_DEFAULTS
/home/rubys/.rvm/ruby-1.9.1-p376/lib/ruby/site_ruby/1.9.1/rubygems/config_file.rb:53: warning: already initialized constant SYSTEM_WIDE_CONFIG_FILE
      create  app/controllers/admin_controller.rb
      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
Please Log In
post /admin/login
You are being redirected.
get http://localhost:3000/admin

Welcome

It's 2010-02-11 14:13:09 -0500 We have 1 order.