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40 lines
805 B
Markdown
40 lines
805 B
Markdown
---
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date: 2020-11-12
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id: c7132269-2084-4d87-9888-0f860db29aaf
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title: Automatic Validation Based on Doctrine Mapping
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---
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# Description
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From [Symfony 4.3](20201112120118-symfony_4_3), Symfony introduces
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automatic validation based on Doctrine mapping.
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# Examples
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``` php
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use Doctrine\ORM\Mapping as ORM;
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/** @ORM\Entity */
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class SomeEntity
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{
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// ...
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/** @ORM\Column(length=4) */
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public $pinCode;
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}
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```
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``` php
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$entity = new SomeEntity();
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$entity->pinCode = '1234567890';
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$violationList = $validator->validate($entity);
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```
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``` php
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$violationList = $validator->validate($entity);
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var_dump((string) $violationList);
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// Object(App\Entity\SomeEntity).columnLength:\n
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// This value is too long. It should have 4 characters or less.
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// (code d94b19cc-114f-4f44-9cc4-4138e80a87b9)\n
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```
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