Form objects

Transcript

1. Form Objects
3. User model
8. https://github.com/apotonick/reform
9. Defining form
10. Defining form Building form
11. Defining form Building form Using form
12. Defining form Building form Using form Using form
13. Form objects can: • Mapping attributes from models to form • Define validations for form • Simple render form’s attributes
14. Form object is easy
15. 1st case
16. 1st case
17. Using form
18. Rendering form
19. accepts_nested_attributes_for:
20. 2nd case accept_nested_attributes_for cocoon
21. Without form objects
23. With form objects
24. Move validations out of models
25. 3rd case
27. With form object it’s easy
28. 4th case
31. Using forms
32. Summary • Form objects can mapping attributes from models to form • Form objects defining validations for form • Simple render form’s attributes with form objects • No validations in model
34. Pros • New abstraction • Clean models • No more conditional validations • No more conditional params permissions
35. Cons • New abstraction • More code • Human factor
37. ПОТРАЧЕНО