6.2 Creating the Products Model and Maintenance Application 6.1 Iteration A1: Getting Something Running

ls -p

app/	 db/   lib/  public/   README	test/  vendor/

config/  doc/  log/  Rakefile  script/	tmp/

ruby script/generate scaffold product title:string description:text image_url:string

      exists  app/models/

      exists  app/controllers/

      exists  app/helpers/

      create  app/views/products

      exists  app/views/layouts/

      exists  test/functional/

      exists  test/unit/

      create  test/unit/helpers/

      exists  public/stylesheets/

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

      create  app/views/products/show.html.erb

      create  app/views/products/new.html.erb

      create  app/views/products/edit.html.erb

      create  app/views/layouts/products.html.erb

      create  public/stylesheets/scaffold.css

      create  app/controllers/products_controller.rb

      create  test/functional/products_controller_test.rb

      create  app/helpers/products_helper.rb

      create  test/unit/helpers/products_helper_test.rb

       route  map.resources :products

  dependency  model

      exists    app/models/

      exists    test/unit/

      exists    test/fixtures/

      create    app/models/product.rb

      create    test/unit/product_test.rb

      create    test/fixtures/products.yml

      create    db/migrate

      create    db/migrate/20100301051029_create_products.rb

rake db:migrate

mv 20100301051029_create_products.rb 20100301000001_create_products.rb

(in /home/rubys/git/awdwr/work-188-235/depot)

==  CreateProducts: migrating =================================================

-- create_table(:products)

   -> 0.0018s

==  CreateProducts: migrated (0.0019s) ========================================

sqlite3> select version from schema_migrations

version = 20100301000001

Start the server.

edit app/views/products/new.html.erb

<h1>New product</h1>

<% form_for(@product) do |f| %>

  <%= f.error_messages %>

  <p>

    <%= f.label :title %><br />

    <%= f.text_field :title %>

  </p>

  <p>

    <%= f.label :description %><br />

    <%= f.text_area :description, :rows => 6 %>

  </p>

  <p>

    <%= f.label :image_url %><br />

    <%= f.text_field :image_url %>

  </p>

  <p>

    <%= f.submit 'Create' %>

  </p>

<% end %>

<%= link_to 'Back', products_path %>

get /products

get /products/new

post /products

• product[image_url] => /images/svn.jpg
• product[description] => <p> This book is a recipe-based approach to using Subversion that will get you up and running quickly---and correctly. All projects need version control: it's a foundational piece of any project's infrastructure. Yet half of all project teams in the U.S. dont use any version control at all. Many others dont use it well, and end up experiencing time-consuming problems. </p>
• product[title] => Pragmatic Version Control

get http://localhost:3000/products/1

get /products

sqlite3 db/development.sqlite3 .schema

CREATE TABLE "products" ("id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, "title" varchar(255), "description" text, "image_url" varchar(255), "created_at" datetime, "updated_at" datetime);

CREATE TABLE "schema_migrations" ("version" varchar(255) NOT NULL);

CREATE UNIQUE INDEX "unique_schema_migrations" ON "schema_migrations" ("version");

rake test

/home/rubys/.rvm/rubies/ruby-1.8.8-r26786/bin/ruby -I"lib:test" "/home/rubys/.rvm/gems/ruby-1.8.8-r26786%global/gems/rake-0.8.7/lib/rake/rake_test_loader.rb" "test/unit/helpers/products_helper_test.rb" "test/unit/product_test.rb" 

(in /home/rubys/git/awdwr/work-188-235/depot)

Loaded suite /home/rubys/.rvm/gems/ruby-1.8.8-r26786%global/gems/rake-0.8.7/lib/rake/rake_test_loader

Started

.

Finished in 0.038164 seconds.

1 tests, 1 assertions, 0 failures, 0 errors

/home/rubys/.rvm/rubies/ruby-1.8.8-r26786/bin/ruby -I"lib:test" "/home/rubys/.rvm/gems/ruby-1.8.8-r26786%global/gems/rake-0.8.7/lib/rake/rake_test_loader.rb" "test/functional/products_controller_test.rb" 

Loaded suite /home/rubys/.rvm/gems/ruby-1.8.8-r26786%global/gems/rake-0.8.7/lib/rake/rake_test_loader

Started

.......

Finished in 0.148662 seconds.

7 tests, 10 assertions, 0 failures, 0 errors

/home/rubys/.rvm/rubies/ruby-1.8.8-r26786/bin/ruby -I"lib:test" "/home/rubys/.rvm/gems/ruby-1.8.8-r26786%global/gems/rake-0.8.7/lib/rake/rake_test_loader.rb"  

6.2 Creating the Products Model and Maintenance Application 6.1 Iteration A1: Getting Something Running