Why not to use Rails? (actually it's when not to use Rails)

•

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Arik Fraimovich

A talk I gave at the

Tecnologia

use Rails?
hy not to
W

Rails Israel 2012
Monday, November 12, 12

Arik Fraimovich
@arikfr

TRuby Podcast

Monday, November 12, 12

actually...
Why use Rails at all?

Monday, November 12, 12

• Community
• Ruby Gems

Monday, November 12, 12

• Community
• Ruby Gems
• Simplicity

Monday, November 12, 12

• Community
• Ruby Gems
• Simplicity
• Convention over conﬁguration

Monday, November 12, 12

• Community
• Ruby Gems
• Simplicity
• Convention over conﬁguration
• Choices that are made for you

Monday, November 12, 12

When not to use Rails?

Monday, November 12, 12

general purpose
libraries (gems)

Monday, November 12, 12

for the simple stuff
Monday, November 12, 12

for large web application
or anything that isn’t a
web application

Monday, November 12, 12

“Our tools shape our
thinking.”
@drnic

Monday, November 12, 12

• Everything is sort of global, no need for
require

• (Usually) no namespacing
• Everything in the context of HTTP request

Monday, November 12, 12

No need to require?

Monday, November 12, 12

No need to require?
• Sounds nice at the beginning

Monday, November 12, 12

No need to require?
• Sounds nice at the beginning
• But then it starts to creep on you and
everything becomes sllllowww...

Monday, November 12, 12

No need to require?
• Sounds nice at the beginning
• But then it starts to creep on you and
everything becomes sllllowww...
• Slow boot time

Monday, November 12, 12

No need to require?
• Sounds nice at the beginning
• But then it starts to creep on you and
everything becomes sllllowww...
• Slow boot time
• Slow specs

Monday, November 12, 12

No need to require?
• Sounds nice at the beginning
• But then it starts to creep on you and
everything becomes sllllowww...
• Slow boot time
• Slow specs
• Slow everything
Monday, November 12, 12

Solution?

Spork (Zeus?)

Monday, November 12, 12

The common Rails app.
Monday, November 12, 12

The Rails app you want
Monday, November 12, 12

What about
the everything in
“HTTP context”?

Monday, November 12, 12

No good answers*

* from me. yet.

Monday, November 12, 12

Some Pointers

• Actor Model - “easy” concurrency. Popular
implementation in Ruby: Celluloid

Monday, November 12, 12

Some Pointers

• Actor Model - “easy” concurrency. Popular
implementation in Ruby: Celluloid
• JRuby

Monday, November 12, 12

Some Pointers

• Actor Model - “easy” concurrency. Popular
implementation in Ruby: Celluloid
• JRuby
• TorqueBox

Monday, November 12, 12

Wrap up
• Use Rails, but remember there are other
things out there

Monday, November 12, 12

Wrap up
• Use Rails, but remember there are other
things out there
• Use Rails “carefully”, as your project grows

Monday, November 12, 12

Wrap up
• Use Rails, but remember there are other
things out there
• Use Rails “carefully”, as your project grows
• Don’t forget that not everything is a nail

Monday, November 12, 12

Questions?

@arikfr

Monday, November 12, 12

• Architecture The Lost Years

• Wrangling Large Rails Codebases

• Hexagonal Rails

• Celluloid

• JRuby

• TorqueBox

• About concurrency and the GIL

• Images taken shamelessly from Google.

Monday, November 12, 12

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Why not to use Rails? (actually it's when not to use Rails)

1. use Rails? hy not to W Rails Israel 2012 Monday, November 12, 12

2. Arik Fraimovich @arikfr TRuby Podcast Monday, November 12, 12

3. actually... Why use Rails at all? Monday, November 12, 12

4. Monday, November 12, 12

5. • Community Monday, November 12, 12

6. • Community • Ruby Gems Monday, November 12, 12

7. • Community • Ruby Gems • Simplicity Monday, November 12, 12

8. • Community • Ruby Gems • Simplicity • Convention over conﬁguration Monday, November 12, 12

9. • Community • Ruby Gems • Simplicity • Convention over conﬁguration • Choices that are made for you Monday, November 12, 12

10. • Community • Ruby Gems • Simplicity • Convention over conﬁguration • Choices that are made for you Monday, November 12, 12

11. Monday, November 12, 12

12. When not to use Rails? Monday, November 12, 12

13. general purpose libraries (gems) Monday, November 12, 12

14. for the simple stuff Monday, November 12, 12

15. for large web application or anything that isn’t a web application Monday, November 12, 12

16. “Our tools shape our thinking.” @drnic Monday, November 12, 12

17. Monday, November 12, 12

18. • Everything is sort of global, no need for require • (Usually) no namespacing • Everything in the context of HTTP request Monday, November 12, 12

19. No need to require? Monday, November 12, 12

20. No need to require? • Sounds nice at the beginning Monday, November 12, 12

21. No need to require? • Sounds nice at the beginning • But then it starts to creep on you and everything becomes sllllowww... Monday, November 12, 12

22. No need to require? • Sounds nice at the beginning • But then it starts to creep on you and everything becomes sllllowww... • Slow boot time Monday, November 12, 12

23. No need to require? • Sounds nice at the beginning • But then it starts to creep on you and everything becomes sllllowww... • Slow boot time • Slow specs Monday, November 12, 12

24. No need to require? • Sounds nice at the beginning • But then it starts to creep on you and everything becomes sllllowww... • Slow boot time • Slow specs • Slow everything Monday, November 12, 12

25. Solution? Spork (Zeus?) Monday, November 12, 12

26. Solution? Spork (Zeus?) Monday, November 12, 12

27. The common Rails app. Monday, November 12, 12

28. The Rails app you want Monday, November 12, 12

29. Engines Monday, November 12, 12

30. Wagons Monday, November 12, 12

31. What about the everything in “HTTP context”? Monday, November 12, 12

32. Good question. Monday, November 12, 12

33. No good answers* * from me. yet. Monday, November 12, 12

34. Some Pointers Monday, November 12, 12

35. Some Pointers • Actor Model - “easy” concurrency. Popular implementation in Ruby: Celluloid Monday, November 12, 12

36. Some Pointers • Actor Model - “easy” concurrency. Popular implementation in Ruby: Celluloid • JRuby Monday, November 12, 12

37. Some Pointers • Actor Model - “easy” concurrency. Popular implementation in Ruby: Celluloid • JRuby • TorqueBox Monday, November 12, 12

38. Wrap up Monday, November 12, 12

39. Wrap up • Use Rails, but remember there are other things out there Monday, November 12, 12

40. Wrap up • Use Rails, but remember there are other things out there • Use Rails “carefully”, as your project grows Monday, November 12, 12

41. Wrap up • Use Rails, but remember there are other things out there • Use Rails “carefully”, as your project grows • Don’t forget that not everything is a nail Monday, November 12, 12

42. Wrap up • Use Rails, but remember there are other things out there • Use Rails “carefully”, as your project grows • Don’t forget that not everything is a nail • And most important: keep using Ruby. It’s awesome Monday, November 12, 12

43. Questions? @arikfr Monday, November 12, 12

44. • Architecture The Lost Years • Wrangling Large Rails Codebases • Hexagonal Rails • Celluloid • JRuby • TorqueBox • About concurrency and the GIL • Images taken shamelessly from Google. Monday, November 12, 12

Why not to use Rails? (actually it's when not to use Rails)

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