Issn

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应用于	属性或方法
类	Issn
验证器	IssnValidator

基本用法

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        // src/Entity/Journal.php
namespace App\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Journal
{
    #[Assert\Issn]
    protected string $issn;
}
    

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        # config/validator/validation.yaml
App\Entity\Journal:
    properties:
        issn:
            - Issn: ~
    

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        <!-- config/validator/validation.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<constraint-mapping xmlns="http://symfony.ac.cn/schema/dic/constraint-mapping"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.ac.cn/schema/dic/constraint-mapping http://symfony.ac.cn/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd">

    <class name="App\Entity\Journal">
        <property name="issn">
            <constraint name="Issn"/>
        </property>
    </class>
</constraint-mapping>
    

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        // src/Entity/Journal.php
namespace App\Entity;

use Symfony\Component\Validator\Constraints as Assert;
use Symfony\Component\Validator\Mapping\ClassMetadata;

class Journal
{
    // ...

    public static function loadValidatorMetadata(ClassMetadata $metadata): void
    {
        $metadata->addPropertyConstraint('issn', new Assert\Issn());
    }
}
    