Single Responsibility Rails

An extended version of the talk where I introduce Hexagonal Rails as an extension of SRP.

Transcript

1. S I N G L E R E S P O N S I B I L I T Y R A I L S @ W H O I S R A E
2. A M I A L O N E ?
3. C O M PA R I N G N O T E S
4. S M A L L , R E S T F U L C O N T R O L L E R S
5. P E R S I S T E N C E S E PA R AT E D F R O M D O M A I N
6. M A N Y S M A L L O B J E C T S
7. A R C H I T E C T U R E A S T R O N O M Y
8. – K E N T B E C K “Software Design is about change”
9. S I N G L E R E S P O N S I B I L I T Y
10. - R E B E C C A W I R F S - B R O C K “A class has responsibilities that fulfill its purpose.”
11. B U T W H AT D O E S I T L O O K L I K E ?
13. – S A N D I M E T Z “Your first obligation is to take a deep breath and insist that it be simple.”
15. M A K E C H A N G E C H E A P
17. M E T H O D - T O - M E T H O D - O B J E C T
20. M O A R M E T H O D T O M E T H O D O B J E C T ! !
23. C O P Y M E T H O D L O G I C I N T O N E W O B J E C T
25. WA S H , R I N S E , R E P E AT
29. I T S TA R T E D W I T H Q U E RY
30. QUERY SEARCH ENGINE SEARCHER RESULTS COUNT PRESENTER
31. TA R G E T C O N T R O L L E R S A N D A C T I V E R E C O R D M O D E L S
32. S M A L L E R O B J E C T S = = S C O P E D C O N C E R N S
33. E A S Y N A M I N G
34. H E X A G O N A L R A I L S
35. A N AT U R A L E X T E N S I O N O F S R P
36. W H Y H E X A G O N S ?
37. P E R S I S T E N C E
38. B U S I N E S S
39. I N T E R FA C E
40. R E U S A B L E L O G I C — D RY
41. E A S I E R T O U P G R A D E R A I L S
42. B U I L D A N A P I
43. FA S T E R T E S T S
44. G O O U T A N D P L AY
45. S I N G L E R E S P O N S I B I L I T Y R A I L S @ W H O I S R A E
46. E X C E L L E N T R E S O U R C E S • [Сергей Лепехин, Ben Ten Toy Photos](https://500px.com/Lepser_ru) • [Sandi Metz, Practical Object-Oriented Design in Ruby: An Agile Primer](http://www.poodr.com/) • [Katrina Owens](http://www.confreaks.com/videos/1071-cascadiaruby2012-therapeutic- refactoring) • [Martin Fowler, Replace Method with Method Object](http://refactoring.com/catalog/ replaceMethodWithMethodObject.html) • [Matt Wynn, GoRuCo 2012 Hexagonal Rails](https://www.youtube.com/watch?v=CGN4RFkhH2M) • [Alistar Cockburn, Hexagonal Architecture](http://alistair.cockburn.us/Hexagonal+architecture)