Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Extraindo a regra de negócio para uma nova camada

Avatar for Gabriel Sobrinho Gabriel Sobrinho
May 10, 2012
Programming
0
180

Extraindo a regra de negócio para uma nova camada

Apresentado no Rails-MG em 2012

Avatar for Gabriel Sobrinho

Gabriel Sobrinho

May 10, 2012
Tweet

More Decks by Gabriel Sobrinho

See All by Gabriel Sobrinho
Arquiteturas Multi-Tenant RubyConf 2022
Avatar for Gabriel Sobrinho sobrinho
0
220
Introduction to Go
Avatar for Gabriel Sobrinho sobrinho
1
110
Casos de otimização em aplicações Ruby on Rails
Avatar for Gabriel Sobrinho sobrinho
0
310
Introduction to automated tests (Goiania)
Avatar for Gabriel Sobrinho sobrinho
0
150
Introduction to automated tests
Avatar for Gabriel Sobrinho sobrinho
3
230
Otimização de Aplicações RoR
Avatar for Gabriel Sobrinho sobrinho
1
270
Introdução ao React (Simplificado)
Avatar for Gabriel Sobrinho sobrinho
0
150
Algoritmos de pesquisa
Avatar for Gabriel Sobrinho sobrinho
0
670
Introdução ao Docker
Avatar for Gabriel Sobrinho sobrinho
1
110

Other Decks in Programming

See All in Programming
Swift Concurrency - 状態監視の罠
Avatar for Yuki Yasoshima objectiveaudio
2
480
いま中途半端なSwift 6対応をするより、Default ActorやApproachable Concurrencyを有効にしてからでいいんじゃない？
Avatar for yimajo yimajo
2
350
フロントエンド開発に役立つクライアントプログラム共通のノウハウ / Universal client-side programming best practices for frontend development
Avatar for nrs nrslib
7
3.9k
プログラミングどうやる？ ～テスト駆動開発から学ぶ達人の型～
Avatar for Atsushi Okui a_okui
0
190
Local Peer-to-Peer APIはどのように使われていくのか？
Avatar for Hal hal_spidernight
2
460
SpecKitでどこまでできる？ コストはどれくらい？
Avatar for Tech Leverages leveragestech
0
580
LLMとPlaywright/reg-suitを活用した jQueryリファクタリングの実際
Avatar for kinocoboy kinocoboy2
4
670
明日から始めるリファクタリング
Avatar for ryounasso ryounasso
0
120
GraphQL×Railsアプリのデータベース負荷分散 - 月間3,000万人利用サービスを無停止で
Avatar for Koya Masuda koxya
1
1.2k
WebエンジニアがSwiftをブラウザで動かすプレイグラウンドを作ってみた
Avatar for uutan1108 ohmori_yusuke
0
170
Things You Thought You Didn’t Need To Care About That Have a Big Impact On Your Job
Avatar for Holly Cummins hollycummins
0
170
iOSエンジニア向けの英語学習アプリを作る！
Avatar for yukawashouhei yukawashouhei
0
180

Featured

See All Featured
Navigating Team Friction
Avatar for Lara Hogan lara
189
15k
The Cost Of JavaScript in 2023
Avatar for Addy Osmani addyosmani
53
9k
Become a Pro
Avatar for Speaker Deck speakerdeck
PRO
29
5.5k
GitHub's CSS Performance
Avatar for Jon Rohan jonrohan
1032
460k
Learning to Love Humans: Emotional Interface Design
Avatar for Aarron Walter aarron
274
40k
ピンチをチャンスに：未来をつくるプロダクトロードマップ #pmconf2020
Avatar for Aki / @LoveIdahoBurger aki_iinuma
127
53k
A better future with KSS
Avatar for Kyle Neath kneath
239
17k
Building a Scalable Design System with Sketch
Avatar for Laura Van Doore lauravandoore
462
33k
Faster Mobile Websites
Avatar for Dean Hume deanohume
310
31k
Site-Speed That Sticks
Avatar for Harry Roberts csswizardry
11
880
Rebuilding a faster, lazier Slack
Avatar for samanthasiow samanthasiow
84
9.2k
10 Git Anti Patterns You Should be Aware of
Avatar for Lemi Orhan Ergin lemiorhan
PRO
657
61k

Transcript

  1. Extraindo a regra de negócio para uma nova camada

  2. @sobrinho • software architect @ nohup • https://github.com/sobrinho

  3. Fat Controllers

  4. Fat Models

  5. Qual é o problema com essas abordagens?

  6. Nenhum!

  7. Por que pensar binário?

  8. Se cada caso deve ser analisado individualmente...

  9. Quem nunca fez um código macarrão?

  10. None
  11. None

  12. Vamos fazer uma pequena aplicação

  13. Eu preciso cadastrar meus contratos e seus itens

  14. E também preciso cancelar os itens individualmente, salvando a data

    do cancelamento
  15. None

  16. Rails Rails é um framework web full-stack Model-View-Controller (MVC)

  17. Contractus ~/Code (1.9.3-p0) 21:08:25 $ rails new contractus ... create

    app/controllers create app/models create app/views ...

  18. Contractus ~/Code (1.9.3-p0) 21:08:25 $ rails new contractus ... create

    app/controllers create app/models create app/views ...

  19. Contractus ~/Code (1.9.3-p0) 21:08:25 $ rails new contractus ... create

    app/controllers create app/models create app/views ...

  20. Contractus ~/Code (1.9.3-p0) 21:08:25 $ rails new contractus ... create

    app/controllers create app/models create app/views ...

  21. Contractus ~/Code (1.9.3-p0) 21:08:25 $ rails new contractus ... create

    app/controllers create app/models create app/views ...

  22. Contractus ~/Code (1.9.3-p0) 21:08:25 $ rails new contractus ... create

    app/controllers create app/models create app/views ...

  23. Contractus ~/Code (1.9.3-p0) 21:08:25 $ rails new contractus ... create

    app/controllers create app/models create app/views ...

  24. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  25. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  26. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  27. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  28. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  29. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  30. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  31. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  32. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  33. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  34. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  35. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  36. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  37. Contractus ~/Code/contractus (1.9.3-p0) (master) 21:10:52 $ rails generate scaffold contract

    name:string 21:21:49 $ rails generate scaffold item contract:references name:string price:decimal canceled_at:date

  38. Fat Controller

  39. None

  40. ~/Code/contractus (1.9.3-p0) ((v0.1.0)) 07:28:35 $ time rspec spec/controllers ................................. Finished

    in 0.42347 seconds 33 examples, 0 failures real 0m7.831s user 0m3.328s sys 0m0.651s

  41. Fat Model

  42. None

  43. ~/Code/contractus (1.9.3-p0) ((v0.2.0)) 02:28:40 $ time rspec spec/models . Finished

    in 0.02556 seconds 1 example, 0 failures real 0m3.048s user 0m2.621s sys 0m0.413s

  44. Business

  45. None

  46. ~/Code/contractus (1.9.3-p0) ((v0.3.0)) 02:29:59 $ time rspec spec/business . Finished

    in 0.00072 seconds 1 example, 0 failures real 0m0.535s user 0m0.397s sys 0m0.088s

  47. Fluxo mais simples Controller x Business x Model

  48. Testes isolados Regra de negócio não deve depender de absolutamente

    nada para ser testada

  49. Manutenção fácil Como proceder se somente os itens das últimas

    24h puderem ser cancelados?

  50. Dúvidas?

  51. Obrigado!