Rails: Up and Running, 2nd Edition

Wrapping Up the Scaffolding

Whew. That section had a lot of detail. Now we have only to scaffold the last resource for categories and create the test data for slideshows and categories. Generate the scaffold for categories now with the following command in your terminal:

$ script/generate scaffold category parent_id:integer name:string
...
      create  app/views/categories
      create  app/views/categories/index.html.erb
      create  app/views/categories/show.html.erb
      create  app/views/categories/new.html.erb
      create  app/views/categories/edit.html.erb
      create  app/views/layouts/categories.html.erb
   identical  public/stylesheets/scaffold.css
      create  app/controllers/categories_controller.rb
      create  test/functional/categories_controller_test.rb
      create  app/helpers/categories_helper.rb
       route  map.resources :categories
  dependency  model
...
      create  app/models/category.rb
      create  test/unit/category_test.rb
      create  test/fixtures/categories.yml
      create  db/migrate/20080509013624_create_categories.rb

Rails creates the usual suspects. We’ve shortened the listing, but you get the idea. Rails creates your controller, views, a named route, and test code for Category. As always, create the test fixtures with the data below. text/fixtures/slideshows.yml should like like the following:

slideshow_1: 
  id: 1
  name: Interesting Pictures

and text/fixtures/categories.yml should look like the following:

category_1: id: 1 name: All category_2: id: 2 parent_id: 1 name: People category_3: id: 3 parent_id: 1 name: Animals category_4: id: 4 parent_id: ...