Rails Custom Validators

Talk feita em um encontro do Meetup Floripa On Rails.
O código utilizado na apresentação está disponível no Github: https://github.com/marcelinol/custom-validator-example

Transcript

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 FÁCIL?
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