The Advanced Business Logic Framework

1. TrailBlazer
A new life for your Ruby on Rails applications
OWTG 2017
@sdogruyol
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2. 2

3. Serdar Doğruyol
● Open Source Wizard
● Rubyist
● Crystal contributor / evangelist
● Kemal author
● Polyglot
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5. 5

6. rails new my-awesome-app
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9. 3 months later
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11. MVC
Model View Controller
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12. 12

13. The Rails Way
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14. Fat Models
Skinny Controllers
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15. Fat Models
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Model View
Controller
callbacks
validations
concerns
scopes
helpers
helpers
More
helpers
Put everything else here!

16. Fat Models
- Too many responsibilities (validation, delegation,
authorization..)
- Callback hell
- Hard to test
- Hard to refactor
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17. NOPE
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The Advanced Business Logic Framework

19. Trailblazer gives you a high-level architecture for web
applications. It extends the basic MVC pattern with new
abstractions. Rock-solid conventions that go far beyond
database table naming or route paths let you focus on your
application code, minimize bugs and improve the
maintainability.
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21. COMPONENTS
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Controller

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Model

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Policy

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Contract

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Cell

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Cell

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Operation

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OPERATION FLOW

31. IT’S JUST RUBY!
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RUBY, RUBY, RUBY <3

33. TEST, LIKE YOU
MEAN IT!
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OPERATION TEST

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CELL TEST

36. AND MORE
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37. REPRESENTABLE
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38. MACROS
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39. DOCS
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http://trailblazer.to/guides

40. THANKS!
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@sdogruyol

41. QUESTIONS?
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@sdogruyol