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22 lines
349 B
Markdown
22 lines
349 B
Markdown
---
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date: 2020-11-12
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id: ebceb7b8-5242-482b-b258-2cf9c25d1788
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title: Unique Constraint
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---
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# Syntax
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``` php
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// src/Entity/Person.php
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namespace App\Entity;
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use Symfony\Component\Validator\Constraints as Assert;
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class Person
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{
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/**
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* @Assert\Unique(message="The {{ value }} email is repeated.")
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*/
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protected $contactEmails;
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}
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```
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