My presentation at Athens Digital Week '09

1. A blink into the “rails magic” The meta-programming in Rails / Rails as a code generator

2. Some rights reserved Nikos Dimitrakopoulos, 2009 http://blog.nikosd.com

3. The “classic” rails ingredients MVC DRY COC …

4. Not for today… MVC DRY COC …

5. Rails as a code generator

6. PART I : 100% Static

7. The directory structure

8. Models + Tests

9. Controllers / views + tests

10. Resources (the whole set)

11. Even with *implemented* views & controllers (a.k.a. “scaffolds”)

17. Static(*) API

20. Nothing special so far…

21. PART II : 100% On-the-fly

22. This is where the actual fun begins!

23. Some basic stuff: ORM

27. How does Rails map the attributes???

30. The truth is in the source…

36. A blink into the “magic”

38. if we haven’t already generated the “dynamic” methods

42. for each column on the db table :

47. PART III : Magic happens Everywhere

48. On the routes / Controllers

55. + 3 more by default

56. + 3 more by default More info on “resources” : http://api.rubyonrails.org/classes/ActionController/Resources.html

57. On the ORM / Models

58. Dynamic finders

59. Dynamic finders

60. As said this is just a “blink”

62. ActiveRecordnamed_scopes

63. ActionControllerroutes

64. ActionControllerrendering

65. ActionControllerformat

69. Domain-aware code

71. Domain-aware code

72. Out of the box

74. Domain-aware code

75. Out of the box

76. Every time

78. Compare it with Java or .Net “enterprise” solutions… © Rubyrags.com

79. Implement your own!!!

80. Implement your own!!! (Jim will give you a hint tomorrow at the Ruby Meetup)

81. Thanks for your time

82. Thanks for your time And welcome to themagic world of Rubyand Ruby on Rails