rails cn

Rails 简单介绍

Transcript

1. Ruby on Rails
2. ఏ纲 • Ruby 语ݴ • Ruby on Rails ᐽՍ • ԋࣔ • Notes
3. Ruby 语ݴ • ٭ຊ语ݴ • ໘޲对৅ • 动态㜎ܕ • 语๏优ඒ
4. Ruby on Rails ᐽՍ • MVC WEB 䇖发ᐽՍ • FullStack
5. Ruby 语ݴ
6. RubyੋҰ㛭ՄҎࣸग़ 优ඒ୅码ɼ让䇖发ऀ ײ౸շ乐త语ݴ DHH - ೔ຊITProࡃ访
7. ٭ຊ语ݴ • ෆधཁ编译 • Ruby൛ Hello, world • $ ruby -e 'puts "Hello, world !"'
8. ໘޲对৅ • Ҏ㜎为ج础త໘޲对৅ • ॴ༗త东੢౎ੋ对৅ • “aaa”.class • 1.class
9. 动态㜎ܕ • 变ྔᏠध੠໌㜎ܕ • ਵ时ՄҎमվ㜎ɺ对৅తߦ为
10. 变ྔᏠध੠໌㜎ܕ • name = “yu” • age = 25 • user = User.new
11. ਵ时ՄҎमվ㜎ɼ对৅తߦ为 class User def say “name is yu” end end user = User.new user.say -> “name is yu” class User def hello “hello” end end user = User.new user.hello -> “hello”
12. 语๏优ඒ • 变ྔෆधཁ㜎ܕ੠໌ • ׅ߸࿨෼߸ՄҎলུ • @䇖头త为实ྫ变ྔ • @@䇖头త为㜎变ྔ • େࣸతੋৗྔ
13. 语๏优ඒ
14. Ruby on Rails ᐽՍ
15. 历࢙ • 2004/07 First version • 2005/12 1.0 • 2007/12 2.0 • 2010/08 3.0 • 2013/05 4.0(rc1)
16. MVC • Model • View • Controller
17. http://japanese.railstutorial.org/chapters/a-demo-app
18. ཧ೦ • 约ఆ优ဋ设ஔ Convention over Configuration • ෆཁॏ䐾㟬ࣗݾ Don’t Repeat Yourself
19. 约ఆ优ဋ഑ஔ • User (Model) • models/user.rb • users (table in DB)
20. 约ఆ优ဋ഑ஔ • UsersController (Controller) • controllers/users_controller.rb
21. 约ఆ优ဋ഑ஔ • users#index (View) • views/users/index.html.erb
22. ෆཁॏ䐾㟬ࣗݾ • Ұ࿽ද • create_users.sql / ख动创ݐʁ • class User ... • User.xml • update_ver211to212.sql
23. ෆཁॏ䐾㟬ࣗݾ • Ұ࿽ද • create_users.rb • class User ...
24. ෆཁॏ䐾㟬ࣗݾ • user.java • user.rb
25. user.java
26. user.rb
27. ํศతޭೳ • ֤䝅ੜ੒ث • 环ڥ؅ཧ • ਺ਾ库൛ຊ؅ཧ • ߇੍୆
28. ֤䝅ੜ੒ث • rails generate • controller • model • migration • rails destory
29. ௒级实༻త环ڥ؅ཧ • ᘍ认ࡾ࿽环ڥ • 䇖发ʗ测试ʗੜ产 • Մࣗఆ义 • ࠜਾ环ڥෆಉ设ஔෆಉࢀ਺ • ൺ೗ɿ发ૹ邮݅༻త෰务ث஍ᅿ
30. ํศత਺ਾ库൛ຊ؅ཧ • rake db: • migrate / test:prepare • rollback • reset • drop
31. ߇੍୆ • rails console • Մ೚ҙ执ߦ୅码 • 查؃਺ਾ
32. ԋࣔ
33. ಺༰ • ৽ݐrails项໨ • ࢖༻rails g scaffold notes body • ⃧Ճ෼㜎