How to dynamically validate data with Symfony

Symfony Con 2022

Transcript

1. How to dynamically validate data with Symfony Marion Hurteau github.com/MarionLeHerisson/validation @MarionHerisson / 📧 mhurteau@jolicode.com 1
2. Hello World 👋 Marion Hurteau @MarionHerisson /MarionLeHerisson 📧 mhurteau@jolicode.com 󰠈 Software Engineering @ESGI 󰠁 JoliCode since 2019 2
3. Hello World 👋 👶 “Disney baby” 󰴛 Nessie & Oscar 🐈 🖥💻 RPG 3
5. Validation ? 5
7. Principle Object Constraint Validator 7
8. Principle Object Constraint Validator ✅ Violation[ ] ❌ Violation[...] 8
9. Contrainte Validateur Entity Constraint Validator 9
10. Violations ? 10
11. The constraints 11
12. Gotta catch’em all ! Blank, NotBlank IsNull, NotNull IsTrue, IsFalse Type, Length 12
13. Gotta catch’em all ! Email, Regex Url, Hostname, Ip CssColor NotCompromisedPassword 13
14. Gotta catch’em all ! Date, DateTime, Time, Timezone Choice Language, Locale, Country File, Image 14
15. Gotta catch’em all ! Bic, Ibn, CardScheme Isbn, Issn, Isin All, AtLeastOneOf, Sequentially 15
16. Gotta catch’em all ! Compound 16
17. Gotta catch’em all ! Compound Callback 17
18. Gotta catch’em all ! Compound Callback Expression 18
19. Gotta catch’em all ! Compound Callback Expression Valid 19
20. Going further 20
21. UniqueEntity 21
22. Auto-mapping validation 22
23. Auto-mapping validation 23
24. Auto-mapping validation 24
25. Differents ways to validate 25
26. On a property 26
27. On a property 27
28. Inside a Form 28
29. On a method (a getter or something else) 29
30. On an entire class 30
31. On an entire class 31
32. On an entire class 32
33. ExecutionContextInterface ? 33
34. In my code When submitting a form NOT when persisting When does it happen ? 34
35. Custom validation 35
36. Custom constraint 36
37. Custom constraint A constraint A validator 37
38. Custom constraint 38
39. Dynamic ? 39
40. Wait, what is a Pokemon ? 40
41. Wait, what is a Pokemon ? plant fire water 41
42. Wait, what is a Pokemon ? lvl. 18 lvl. 36 42
43. Wait, what is a Pokemon ? 43
44. Wait, what is a Pokemon ? 44
45. Wait, what is a Pokemon? 45
46. Wait, what is a Pokemon? 46
47. niv. 18 niv. 36 Use case 47
48. Use case POST /evolution/create 48
49. Use case 49
50. Use case 50
51. With a Callback 51
52. Inside the Controller 52
53. The entity 53
54. The constraints (in the entity) 54
55. The constraints (in the entity) 55
56. The constraints (in the entity) 56
57. The constraints (in the entity) 57
58. The constraints (in the entity) 58
59. The Callback (1/2) 59
60. The Callback (2/2) 60
61. Let’s try it ! 61
62. Let’s try it ! 62
63. Why is it KO ? 63
64. Why is it KO ? 64
65. The Callback (2/2) - Fixed it 65
66. Let’s try it - again ! 66
67. Design 👍 Fast 67
68. Design 👍 Fast 👎 Reusability 👎 Method’s or class size 👎 Testability 68
70. Design 👉 Externalise the constraints 👉 DIC 70
71. With external constraints 71
72. The Constraint 72
73. The Constraint 73
74. Let’s add an interface ✨ 74
75. Type definition 75
76. Type definition 76
77. Add some tags 77
78. ServiceLocator 78
79. The ConstraintValidator (1/2) 79
80. The ConstraintValidator (2/2) 80
82. TL;DR: 👉 Validate ! ✨ $context->getValidator()->inContext($context) 👉 External constraint : - Maintainable - Testable - Reusable 👉 _instanceof & !tagged_locator - + default_index_method 82
83. 83 Other use cases
84. Level up: Conditional Constraints 84
85. Thank you! @MarionHerisson /MarionLeHerisson/validation 📧 mhurteau@jolicode.com 85
86. Questions? 86 @MarionHerisson /MarionLeHerisson/validation 📧 mhurteau@jolicode.com
87. https://lparchive.org/Pokemon-Emerald-(by-Crosspei ce)/Update%2034/ 87