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21 lines
318 B
Markdown
21 lines
318 B
Markdown
---
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id: 4e20e5e5-06b6-4280-9cd0-7b08585a762b
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title: Symfony JSON Constraint
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---
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# Syntax
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``` php
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// src/Entity/Book.php
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namespace App\Entity;
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use Symfony\Component\Validator\Constraints as Assert;
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class Book
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{
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/**
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* @Assert\Json(message = "This is not valid JSON")
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*/
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protected $chapters;
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}
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```
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