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How to dynamically validate data with Symfony
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Marion Hurteau
November 18, 2022
Programming
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How to dynamically validate data with Symfony
Symfony Con 2022
Marion Hurteau
November 18, 2022
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Transcript
How to dynamically validate data with Symfony Marion Hurteau github.com/MarionLeHerisson/validation
@MarionHerisson / 📧
[email protected]
1
Hello World 👋 Marion Hurteau @MarionHerisson /MarionLeHerisson 📧
[email protected]
Software Engineering @ESGI JoliCode since 2019 2
Hello World 👋 👶 “Disney baby” Nessie & Oscar
🐈 🖥💻 RPG 3
4
Validation ? 5
6
Principle Object Constraint Validator 7
Principle Object Constraint Validator ✅ Violation[ ] ❌ Violation[...] 8
Contrainte Validateur Entity Constraint Validator 9
Violations ? 10
The constraints 11
Gotta catch’em all ! Blank, NotBlank IsNull, NotNull IsTrue, IsFalse
Type, Length 12
Gotta catch’em all ! Email, Regex Url, Hostname, Ip CssColor
NotCompromisedPassword 13
Gotta catch’em all ! Date, DateTime, Time, Timezone Choice Language,
Locale, Country File, Image 14
Gotta catch’em all ! Bic, Ibn, CardScheme Isbn, Issn, Isin
All, AtLeastOneOf, Sequentially 15
Gotta catch’em all ! Compound 16
Gotta catch’em all ! Compound Callback 17
Gotta catch’em all ! Compound Callback Expression 18
Gotta catch’em all ! Compound Callback Expression Valid 19
Going further 20
UniqueEntity 21
Auto-mapping validation 22
Auto-mapping validation 23
Auto-mapping validation 24
Differents ways to validate 25
On a property 26
On a property 27
Inside a Form 28
On a method (a getter or something else) 29
On an entire class 30
On an entire class 31
On an entire class 32
ExecutionContextInterface ? 33
In my code When submitting a form NOT when persisting
When does it happen ? 34
Custom validation 35
Custom constraint 36
Custom constraint A constraint A validator 37
Custom constraint 38
Dynamic ? 39
Wait, what is a Pokemon ? 40
Wait, what is a Pokemon ? plant fire water 41
Wait, what is a Pokemon ? lvl. 18 lvl. 36
42
Wait, what is a Pokemon ? 43
Wait, what is a Pokemon ? 44
Wait, what is a Pokemon? 45
Wait, what is a Pokemon? 46
niv. 18 niv. 36 Use case 47
Use case POST /evolution/create 48
Use case 49
Use case 50
With a Callback 51
Inside the Controller 52
The entity 53
The constraints (in the entity) 54
The constraints (in the entity) 55
The constraints (in the entity) 56
The constraints (in the entity) 57
The constraints (in the entity) 58
The Callback (1/2) 59
The Callback (2/2) 60
Let’s try it ! 61
Let’s try it ! 62
Why is it KO ? 63
Why is it KO ? 64
The Callback (2/2) - Fixed it 65
Let’s try it - again ! 66
Design 👍 Fast 67
Design 👍 Fast 👎 Reusability 👎 Method’s or class size
👎 Testability 68
69
Design 👉 Externalise the constraints 👉 DIC 70
With external constraints 71
The Constraint 72
The Constraint 73
Let’s add an interface ✨ 74
Type definition 75
Type definition 76
Add some tags 77
ServiceLocator 78
The ConstraintValidator (1/2) 79
The ConstraintValidator (2/2) 80
81
TL;DR: 👉 Validate ! ✨ $context->getValidator()->inContext($context) 👉 External constraint :
- Maintainable - Testable - Reusable 👉 _instanceof & !tagged_locator - + default_index_method 82
83 Other use cases
Level up: Conditional Constraints 84
Thank you! @MarionHerisson /MarionLeHerisson/validation 📧
[email protected]
85
Questions? 86 @MarionHerisson /MarionLeHerisson/validation 📧
[email protected]
https://lparchive.org/Pokemon-Emerald-(by-Crosspei ce)/Update%2034/ 87