简述

通过脚手架可以方便的创建基本的结构（包括路由、migration、MVC、测试、assets、helper）

脚手架的example或是详细说明可以 rails g scaffold --help 查看

通过脚手架创建简单模型

  1. $> rails g scaffold article title:string body:text
  3.       invoke  active_record
  4.       create    db/migrate/20200327031316_create_articles.rb
  5.       create    app/models/article.rb
  6.       invoke    test_unit
  7.       create      test/models/article_test.rb
  8.       create      test/fixtures/articles.yml
  9.       invoke  resource_route
  10.        route    resources :articles
  11.       invoke  scaffold_controller
  12.       create    app/controllers/articles_controller.rb
  13.       invoke    erb
  14.       create      app/views/articles
  15.       create      app/views/articles/index.html.erb
  16.       create      app/views/articles/edit.html.erb
  17.       create      app/views/articles/show.html.erb
  18.       create      app/views/articles/new.html.erb
  19.       create      app/views/articles/_form.html.erb
  20.       invoke    test_unit
  21.       create      test/controllers/articles_controller_test.rb
  22.       create      test/system/articles_test.rb
  23.       invoke    helper
  24.       create      app/helpers/articles_helper.rb
  25.       invoke      test_unit
  26.       invoke    jbuilder
  27.       create      app/views/articles/index.json.jbuilder
  28.       create      app/views/articles/show.json.jbuilder
  29.       create      app/views/articles/_article.json.jbuilder
  30.       invoke  assets
  31.       invoke    coffee
  32.       create      app/assets/javascripts/articles.coffee
  33.       invoke    scss
  34.       create      app/assets/stylesheets/articles.scss
  35.       invoke  scss
  36.       create    app/assets/stylesheets/scaffolds.scss

注意输出日志的缩进。脚手架主要做了下面几件事

1、创建active_record的migrate文件、对应的模型文件、及模式测试单元

  1. invoke  active_record
  2.     create    db/migrate/20200327031316_create_articles.rb
  3.   create    app/models/article.rb
  4.   invoke    test_unit
  5.     create      test/models/article_test.rb
  6.     create      test/fixtures/articles.yml

2、添加对应资源的路由方法

在config/routes.rb文件中添加

  1. invoke  resource_route
  2.     route    resources :articles

3、添加对应资源的控制器、视图、及对应的测试单元

  1. invoke  scaffold_controller
  2. create    app/controllers/articles_controller.rb
  3. invoke    erb
  4. create      app/views/articles
  5. create      app/views/articles/index.html.erb
  6. create      app/views/articles/edit.html.erb
  7. create      app/views/articles/show.html.erb
  8. create      app/views/articles/new.html.erb
  9. create      app/views/articles/_form.html.erb
  10. invoke    test_unit
  11. create      test/controllers/articles_controller_test.rb
  12. create      test/system/articles_test.rb
  13. invoke    helper
  14. create      app/helpers/articles_helper.rb
  15. invoke      test_unit
  16. invoke    jbuilder
  17. create      app/views/articles/index.json.jbuilder
  18. create      app/views/articles/show.json.jbuilder
  19. create      app/views/articles/_article.json.jbuilder

4、创建对应的样式及javascript脚本文件

  1. invoke  assets
  2. invoke    coffee
  3. create      app/assets/javascripts/articles.coffee
  4. invoke    scss
  5. create      app/assets/stylesheets/articles.scss
  6. invoke  scss
  7. create    app/assets/stylesheets/scaffolds.scss

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