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WARNING: You are browsing the documentation for Symfony 2.4 which is not maintained anymore. Consider upgrading your projects to Symfony 5.1.

Issn

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Issn

New in version 2.3: The Issn constraint was introduced in Symfony 2.3.

Validates that a value is a valid International Standard Serial Number (ISSN).

Applies to property or method
Options
Class Symfony\Component\Validator\Constraints\Issn
Validator Symfony\Component\Validator\Constraints\IssnValidator

Basic Usage

  • YAML
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    # src/Acme/JournalBundle/Resources/config/validation.yml
Acme\JournalBundle\Entity\Journal:
    properties:
        issn:
            - Issn: ~
  • Annotations
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    // src/Acme/JournalBundle/Entity/Journal.php
namespace Acme\JournalBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class Journal
{
    /**
     * @Assert\Issn
     */
     protected $issn;
}
  • XML
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    <!-- src/Acme/JournalBundle/Resources/config/validation.xml -->
<?xml version="1.0" encoding="UTF-8" ?>
<constraint-mapping xmlns="http://symfony.com/schema/dic/constraint-mapping"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/constraint-mapping http://symfony.com/schema/dic/constraint-mapping/constraint-mapping-1.0.xsd">

    <class name="Acme\JournalBundle\Entity\Journal">
        <property name="issn">
            <constraint name="Issn" />
        </property>
    </class>
</constraint-mapping>
  • PHP
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    // src/Acme/JournalBundle/Entity/Journal.php
namespace Acme\JournalBundle\Entity;

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

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

Options

message

type: String default: This value is not a valid ISSN.

The message shown if the given value is not a valid ISSN.

caseSensitive

type: Boolean default: false

The validator will allow ISSN values to end with a lower case ‘x’ by default. When switching this to true, the validator requires an upper case ‘X’.

requireHyphen

type: Boolean default: false

The validator will allow non hyphenated ISSN values by default. When switching this to true, the validator requires a hyphenated ISSN value.

This work, including the code samples, is licensed under a Creative Commons BY-SA 3.0 license.