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

Extraindo a regra de negócio para uma nova camada

Sponsored · Your Podcast. Everywhere. Effortlessly. Share. Educate. Inspire. Entertain. You do you. We'll handle the rest. →
Avatar for Gabriel Sobrinho Gabriel Sobrinho
May 10, 2012
Programming
190
0

Extraindo a regra de negócio para uma nova camada

Apresentado no Rails-MG em 2012

Avatar for Gabriel Sobrinho

Gabriel Sobrinho

May 10, 2012

More Decks by Gabriel Sobrinho

See All by Gabriel Sobrinho
Arquiteturas Multi-Tenant RubyConf 2022
Avatar for Gabriel Sobrinho sobrinho
0
230
Introduction to Go
Avatar for Gabriel Sobrinho sobrinho
1
120
Casos de otimização em aplicações Ruby on Rails
Avatar for Gabriel Sobrinho sobrinho
0
320
Introduction to automated tests (Goiania)
Avatar for Gabriel Sobrinho sobrinho
0
150
Introduction to automated tests
Avatar for Gabriel Sobrinho sobrinho
3
250
Otimização de Aplicações RoR
Avatar for Gabriel Sobrinho sobrinho
1
280
Introdução ao React (Simplificado)
Avatar for Gabriel Sobrinho sobrinho
0
160
Algoritmos de pesquisa
Avatar for Gabriel Sobrinho sobrinho
0
680
Introdução ao Docker
Avatar for Gabriel Sobrinho sobrinho
1
120

Other Decks in Programming

See All in Programming
[PHPerKaigi 2026]PHPerKaigi2025の企画CodeGolfが最高すぎて社内で内製して半年運営して得た内製と運営の知見
Avatar for Z.O.E. ikezoemakoto
0
340
それはエンジニアリングの糧である：AI開発のためにAIのOSSを開発する現場より / It serves as fuel for engineering: insights from the field of developing open-source AI for AI development.
Avatar for nrs nrslib
1
830
Xdebug と IDE による デバッグ実行の仕組みを見る / Exploring-How-Debugging-Works-with-Xdebug-and-an-IDE
Avatar for shin1x1 shin1x1
0
360
10年分の技術的負債、完済へ ― Claude Code主導のAI駆動開発でスポーツブルを丸ごとリプレイスした話
Avatar for nero15 takuya_houshima
0
2.3k
PDI: Como Alavancar Sua Carreira e Seu Negócio
Avatar for Marcel dos Santos marcelgsantos
0
110
The Monolith Strikes Back: Why AI Agents ❤️ Rails Monoliths
Avatar for Rodrigo Serradura serradura
0
290
Symfonyの特性(設計思想)を手軽に活かす特性(trait)
Avatar for ICKX ickx
0
130
セグメントとターゲットを意識するプロポーザルの書き方 〜採択の鍵は、誰に刺すかを見極めるマーケティング戦略にある〜
Avatar for memory m3m0r7
PRO
0
440
事業会社でのセキュリティ長期インターンについて
Avatar for inlet-back masachikaura
0
240
まかせられるPM・まかせられないPM / DevTech GUILD Meetup
Avatar for Yusuke Mukoyama yusukemukoyama
0
120
今こそ押さえておきたい アマゾンウェブサービス（AWS）の データベースの基礎 おもクラ #6版
Avatar for Satoshi Kaneyasu satoshi256kbyte
1
240
ネイティブアプリとWebフロントエンドのAPI通信ラッパーにおける共通化の勘所
Avatar for Suguru Ohki suguruooki
0
260

Featured

See All Featured
Leadership Guide Workshop - DevTernity 2021
Avatar for David Neal reverentgeek
1
260
What's in a price? How to price your products and services
Avatar for Michael Herold michaelherold
247
13k
Save Time (by Creating Custom Rails Generators)
Avatar for Garrett Dimon garrettdimon
PRO
32
2.7k
Keith and Marios Guide to Fast Websites
Avatar for Keith Pitt keithpitt
413
23k
The untapped power of vector embeddings
Avatar for Frank van Dijk frankvandijk
2
1.7k
Embracing the Ebb and Flow
Avatar for Simon Collison colly
88
5k
More Than Pixels: Becoming A User Experience Designer
Avatar for Michelle Schulp Hunt marktimemedia
3
370
Become a Pro
Avatar for Speaker Deck speakerdeck
PRO
31
5.9k
Why You Should Never Use an ORM
Avatar for John Nunemaker jnunemaker
PRO
61
9.8k
Digital Ethics as a Driver of Design Innovation
Avatar for Per Axbom axbom
PRO
1
260
Being A Developer After 40
Avatar for Adrian Kosmaczewski akosma
91
590k
Breaking role norms: Why Content Design is so much more than writing copy - Taylor Woolridge
Avatar for UX Y'all uxyall
0
250

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!