Uuid

New in version 2.5

The Uuid constraint was introduced in Symfony 2.5.

Validates that a value is a valid Universally unique identifier (UUID) per RFC 4122. By default, this will validate the format according to the RFC's guidelines, but this can be relaxed to accept non-standard UUIDs that other systems (like PostgreSQL) accept. UUID versions can also be restricted using a whitelist.

Applies to	property or method
Options	message strict versions
Class	Uuid
Validator	UuidValidator

Basic Usage

YAML
Annotations
XML
PHP

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        # src/UploadsBundle/Resources/config/validation.yml
Acme\UploadsBundle\Entity\File:
    properties:
        identifier:
            - Uuid: ~
    

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        // src/Acme/UploadsBundle/Entity/File.php
namespace Acme\UploadsBundle\Entity;

use Symfony\Component\Validator\Constraints as Assert;

class File
{
    /**
     * @Assert\Uuid
     */
     protected $identifier;
}
    

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        <!-- src/Acme/UploadsBundle/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\UploadsBundle\Entity\File">
        <property name="identifier">
            <constraint name="Uuid" />
        </property>
    </class>
</constraint-mapping>
    

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        // src/Acme/UploadsBundle/Entity/File.php
namespace Acme\UploadsBundle\Entity;

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

class File
{
    public static function loadValidatorMetadata(ClassMetadata $metadata)
    {
        $metadata->addPropertyConstraint('identifier', new Assert\Uuid());
    }
}
    

Options

message

type: string default: This is not a valid UUID.

This message is shown if the string is not a valid UUID.

strict

type: boolean default: true

If this option is set to true the constraint will check if the UUID is formatted per the RFC's input format rules: 216fff40-98d9-11e3-a5e2-0800200c9a66. Setting this to false will allow alternate input formats like:

216f-ff40-98d9-11e3-a5e2-0800-200c-9a66
{216fff40-98d9-11e3-a5e2-0800200c9a66}
216fff4098d911e3a5e20800200c9a66

versions

type: int[] default: [1,2,3,4,5]

This option can be used to only allow specific UUID versions. Valid versions are 1 - 5. The following PHP constants can also be used:

Uuid::V1_MAC
Uuid::V2_DCE
Uuid::V3_MD5
Uuid::V4_RANDOM
Uuid::V5_SHA1

All five versions are allowed by default.

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