Rails Custom Validators - Não se esqueça deles

1. RAILS
CUSTOM VALIDATORS
@marcelinol

2. DEFAULT
VALIDATORS

3. RAILS GENERATE MODEL PERSON
NAME:STRING
EMAIL:STRING
PERSONAL_SITE:STRING

4. # app/models/person.rb

5. > p = Person.create(name: 'Nome', personal_site: 'http://pudim.com.br')
(0.2ms) begin transaction
=> (...)
(0.1ms) rollback transaction
=> (...)
> p.errors
=> #<ActiveModel::Errors:0x007fa06fd7c370 @base=#<Person id: nil, name:
"Nome", email: nil, personal_site: "http://pudim.com.br", created_at: nil,
updated_at: nil>, @messages={:email=>["can't be blank"]}>
>

7. # app/models/person.rb

8. > p = Person.create(name: 'Nome',
email: 'email@example.org',
personal_site: 'xunda')
(0.2ms) begin transaction
=> (...)
(0.1ms) rollback transaction
=> (...)
> p.errors
=> #<ActiveModel::Errors:0x007fa06ff84618 @base=#<Person id: nil, name:
"Nome", email: "email@example.org", personal_site: "xunda", created_at: nil,
updated_at: nil>, @messages={:personal_site=>["Formato de site inválido"]}>
>
> p = Person.create(name: 'Nome',
email: 'email@example.org',
personal_site: 'xunda')
(0.2ms) begin transaction
=> (...)
(0.1ms) rollback transaction
=> (...)
> p.errors
=> #<ActiveModel::Errors:0x007fa06ff84618 @base=#<Person id: nil, name:
"Nome", email: "email@example.org", personal_site: "xunda", created_at: nil,
updated_at: nil>, @messages={:personal_site=>["Formato de site inválido"]}>
>

9. RAILS GENERATE MODEL COMPANY
NAME:STRING
OTHER_PARAMS:XUNDA
SITE:STRING

10. # app/models/company.rb

11. # app/models/company.rb
ISTO NÃO É
DRY

13. É HORA DE USAR UM
CUSTOM VALIDATOR

14. # app/validators/url_format_validator.rb

15. # app/models/person.rb
# app/models/company.rb

16. > p = Person.create(name: 'Nome',
email: 'email@example.org',
personal_site: 'xunda')
(0.2ms) begin transaction
=> (...)
(0.1ms) rollback transaction
=> (...)
> p.errors
=> #<ActiveModel::Errors:0x007fa06ff84618 @base=#<Person id: nil, name:
"Nome", email: "email@example.org", personal_site: "xunda", created_at: nil,
updated_at: nil>, @messages={:personal_site=>["Formato de site inválido"]}>
>

17. # app/models/xunda.rb

18. if rails.too_old
end

19. VAMOS TESTAR?

21. CARA, ISSO PODE FICAR
AINDA MAIS
BONITO?

23. SIM

24. CRIE UM
VALIDATION TESTER
# spec/support/validation_tester.rb

26. # spec/support/validation_tester.rb

27. SHIPIT.RESULTADOSDIGITAIS.COM.BR
PERGUNTAS?
CONSIDERAÇÕES?
@marcelinol

28. Obrigado