This document provides an overview of Rails, an MVC framework focused on building web applications in Ruby, detailing its history from its inception in 2004 to its current version 3.0.10. It covers core components such as models, controllers, views, routing, and testing in Rails, while also highlighting the importance of client-side technologies and deployment to platforms like Heroku. Additionally, it mentions the use of gems for functionality and offers a brief example of interacting with a web API.

1. Rails 101

2. Rails is an MVC framework for Ruby focused on building web applications

3. David Heinemeier Hansson (DHH)

4. First open sourced July 2004

5. Extracted from Basecamp

6. Version 1.0 December 13, 2005

8. August 2006 Apple announces that Rails will be installed by default in OSX Apple announces that Rails will be installed by default in OSX Apple announces that Rails will be installed by default in OSX

9. Version 2.0 December 7, 2007 Version 3.0 August 29, 2010 August 29, 2010 August 29, 2010 August 29, 2010 August 29, 2010

10. Current Version 3.0.10 3.0.10

11. Convention over Configuration Configuration Configuration

12. Model Post

13. Model DB Table Post posts

14. Model DB Table Controller Post posts PostsController

15. Model DB Table Controller Index Post posts PostsController /posts posts_path

16. Model DB Table Controller Index Show Post posts PostsController /posts posts_path /posts/1 post_path(@post)

17. Model DB Table Controller Index Show Edit Post posts PostsController /posts posts_path /posts/1 post_path(@post) /posts/1/edit edit_posts_path(@post)

18. Posts table

19. Primary Key Generated and managed by Rails id Posts table

20. Primary Key Generated and managed by Rails Foreign Key belongs_to id user_id Posts table

21. Primary Key Generated and managed by Rails Foreign Key belongs_to Auto-populated timestamps id user_id created_at updated_at Posts table

22. The client-side is important

23. The client-side is important Prototype Scriptaculous

24. The client-side is important Prototype Scriptaculous jQuery jQuery jQuery jQuery jQuery jQuery

25. Generators

26. Create a new app

27. Structure

29. Majority of code

30. Majority of code App/environment config

31. Majority of code App/environment config Database config (and database!)

32. Majority of code App/environment config Database config (and database!) App documentation

33. Majority of code App/environment config Database config (and database!) App documentation Custom code

34. Majority of code App/environment config Database config (and database!) App documentation Custom code Images, javascript, stylesheets

35. Majority of code App/environment config Database config (and database!) App documentation Custom code Images, javascript, stylesheets Rails scripts

36. Majority of code App/environment config Database config (and database!) App documentation Custom code Images, javascript, stylesheets Rails scripts Test code

37. Majority of code App/environment config Database config (and database!) App documentation Custom code Images, javascript, stylesheets Rails scripts Test code Third party code

38. WEBrick

39. Scaffolding

40. Scaffolding Creates CRUD screens for working with a single database table Creates CRUD screens for working with a single database table Creates CRUD screens for working with a single database table Creates CRUD screens for working with a single database table

41. Models

42. ActiveRecord Object Relational Mapping Object Relational Mapping Object Relational Mapping

43. Database

44. Migrations

45. Relationships

46. Rails console

47. Validations

48. Controllers

49. Actions

50. Routes

51. params

52. session

53. @

54. format

55. “ The essence of XML is this: the problem it solves is not hard, and it does not solve the problem well.” — Phil Wadler — Phil Wadler — Phil Wadler

56. Views

57. Layouts

58. Partials

59. Form helpers

60. Helpers

61. html_safe

62. RESTful

63. Free web services

64. ws-*

65. “ Don’t blame me, I’m just a contractor.”

66. Let HTTP do what it was meant to do

67. GET POST PUT DELETE DELETE DELETE DELETE

68. resources

69. GET index /posts

70. GET GET index show /posts /posts/1

71. GET GET GET index show new /posts /posts/1 /posts/new

72. GET GET GET POST index show new create /posts /posts/1 /posts/new /posts

73. GET GET GET POST GET index show new create edit /posts /posts/1 /posts/new /posts /posts/1/edit

74. GET GET GET POST GET PUT index show new create edit update /posts /posts/1 /posts/new /posts /posts/1/edit /posts/1

75. GET GET GET POST GET PUT DELETE index show new create edit update destroy /posts /posts/1 /posts/new /posts /posts/1/edit /posts/1 /posts/1

76. Caching

77. Fragment caching

78. Action caching

79. Page caching

80. “ There are only two hard problems in Computer Science: cache invalidation and naming things.” — Phil Karlton — Phil Karlton — Phil Karlton

81. Testing

82. Unit

83. Functional

84. Integration

85. Configuration

86. Environments

87. Deployment

89. Questions?

90. Workshop

91. Web interface to the Active.com Search API

92. Example

93. What you need to know

94. Required Gems

95. Required Gems # Gemfile gem 'httparty' gem 'heroku'

96. Required Gems # Gemfile gem 'httparty' gem 'heroku' rob$ bundle install

97. Required Gems # Gemfile gem 'httparty' gem 'heroku' rob$ bundle install rob$ gem install bundler

98. Search API Endpoint http://api.amp.active.com/search? v=json& k=keywords& m=meta:channel%3DRunning& api_key=wuhmn9ye94xn3xnteudxsavw

99. HTTP call HTTParty.get(url)

100. Parse JSON JSON.parse(text) HTTP call HTTParty.get(url)

101. Iterate through array my_array.each do |item| puts item end

102. Deploy to Heroku git init g it add . g i t commit -m ‘First commit’ he r oku create ... git p ush heroku master

103. Questions?

104. # Gemfile gem 'httparty' gem 'heroku' rob$ bundle install rob$ gem install bundler http://api.amp.active.com/search? v=json& k=keywords& m=meta:channel%3DRunning& api_key=wuhmn9ye94xn3xnteudxsavw JSON.parse(text) HTTParty.get(url) my_array.each do |item| puts item end git init g it add . g i t commit -m ‘First commit’ he r oku create ... git p ush heroku master

105. “ Ruby on Rails will never be used in production at Active.”

106. The End