ramsey/uuid-doctrine

Use ramsey/uuid as a Doctrine field type.

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1.7.0 2021-08-07 16:48 UTC

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README

Use ramsey/uuid as a Doctrine field type

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The ramsey/uuid-doctrine package provides the ability to use ramsey/uuid as a Doctrine field type.

This project adheres to a code of conduct. By participating in this project and its community, you are expected to uphold this code.

Installation

Install this package as a dependency using Composer.

composer require ramsey/uuid-doctrine

Usage

Configuration

To configure Doctrine to use ramsey/uuid as a field type, you'll need to set up the following in your bootstrap:

\Doctrine\DBAL\Types\Type::addType('uuid', 'Ramsey\Uuid\Doctrine\UuidType');

In Symfony:

# config/packages/doctrine.yaml
doctrine:
    dbal:
        types:
            uuid: Ramsey\Uuid\Doctrine\UuidType

In Zend Framework:

<?php
// module.config.php
use Ramsey\Uuid\Doctrine\UuidType;

return [
    'doctrine' => [
        'configuration' => [
            'orm_default' => [
                'types' => [
                    UuidType::NAME => UuidType::class,

In Laravel:

<?php
// config/doctrine.php
    'custom_types'               => [
        \Ramsey\Uuid\Doctrine\UuidType::NAME => \Ramsey\Uuid\Doctrine\UuidType::class
    ],

Mappings

Then, in your models, you may annotate properties by setting the @Column type to uuid, and defining a custom generator of Ramsey\Uuid\UuidGenerator. Doctrine will handle the rest.

use Doctrine\ORM\Mapping as ORM;
use Ramsey\Uuid\Doctrine\UuidGenerator;

/**
 * @ORM\Entity
 * @ORM\Table(name="products")
 */
class Product
{
    /**
     * @var \Ramsey\Uuid\UuidInterface
     *
     * @ORM\Id
     * @ORM\Column(type="uuid", unique=true)
     * @ORM\GeneratedValue(strategy="CUSTOM")
     * @ORM\CustomIdGenerator(class=UuidGenerator::class)
     */
    protected $id;

    public function getId()
    {
        return $this->id;
    }
}

If you use the XML Mapping instead of PHP annotations.

<id name="id" column="id" type="uuid">
    <generator strategy="CUSTOM"/>
    <custom-id-generator class="Ramsey\Uuid\Doctrine\UuidGenerator"/>
</id>

You can also use the YAML Mapping.

id:
    id:
        type: uuid
        generator:
            strategy: CUSTOM
        customIdGenerator:
            class: Ramsey\Uuid\Doctrine\UuidGenerator

Binary database columns

In the previous example, Doctrine will create a database column of type CHAR(36), but you may also use this library to store UUIDs as binary strings. The UuidBinaryType helps accomplish this.

In your bootstrap, place the following:

\Doctrine\DBAL\Types\Type::addType('uuid_binary', 'Ramsey\Uuid\Doctrine\UuidBinaryType');
$entityManager->getConnection()->getDatabasePlatform()->registerDoctrineTypeMapping('uuid_binary', 'binary');

In Symfony:

# config/packages/doctrine.yaml
doctrine:
    dbal:
        types:
            uuid_binary:  Ramsey\Uuid\Doctrine\UuidBinaryType
# Uncomment if using doctrine/orm <2.8
        # mapping_types:
            # uuid_binary: binary

Then, when annotating model class properties, use uuid_binary instead of uuid:

@Column(type="uuid_binary")

InnoDB-optimised binary UUIDs

More suitable if you want to use UUIDs as primary key. Note that this can cause unintended effects if:

  • decoding bytes that were not generated using this method
  • another code (that isn't aware of this method) attempts to decode the resulting bytes

More information in this Percona article and UUID Talk by Ben Ramsey (starts at slide 58).

\Doctrine\DBAL\Types\Type::addType('uuid_binary_ordered_time', 'Ramsey\Uuid\Doctrine\UuidBinaryOrderedTimeType');
$entityManager->getConnection()->getDatabasePlatform()->registerDoctrineTypeMapping('uuid_binary_ordered_time', 'binary');

In Symfony:

# config/packages/doctrine.yaml
doctrine:
   dbal:
       types:
           uuid_binary_ordered_time: Ramsey\Uuid\Doctrine\UuidBinaryOrderedTimeType
# Uncomment if using doctrine/orm <2.8
       # mapping_types:
           # uuid_binary_ordered_time: binary

Then, in your models, you may annotate properties by setting the @Column type to uuid_binary_ordered_time, and defining a custom generator of Ramsey\Uuid\UuidOrderedTimeGenerator. Doctrine will handle the rest.

/**
 * @Entity
 * @Table(name="products")
 */
class Product
{
    /**
     * @var \Ramsey\Uuid\UuidInterface
     *
     * @Id
     * @Column(type="uuid_binary_ordered_time", unique=true)
     * @GeneratedValue(strategy="CUSTOM")
     * @CustomIdGenerator(class="Ramsey\Uuid\Doctrine\UuidOrderedTimeGenerator")
     */
    protected $id;

    public function getId()
    {
        return $this->id;
    }
}

If you use the XML Mapping instead of PHP annotations.

<id name="id" column="id" type="uuid_binary_ordered_time">
    <generator strategy="CUSTOM"/>
    <custom-id-generator class="Ramsey\Uuid\Doctrine\UuidOrderedTimeGenerator"/>
</id>

Working with binary identifiers

When working with binary identifiers you may wish to convert them into a readable format. As of MySql 8.0 you can use the BIN_TO_UUID and UUID_TO_BIN functions documented here. The second argument determines if the byte order should be swapped, therefore when using uuid_binary you should pass 0 and when using uuid_binary_ordered_time you should pass 1.

For other versions you can use the following:

DELIMITER $$

CREATE
    FUNCTION BIN_TO_UUID(bin_uuid BINARY(16), swap_flag BOOLEAN)
    RETURNS CHAR(36)
    DETERMINISTIC
    BEGIN
       DECLARE hex_uuid CHAR(32);
       SET hex_uuid = HEX(bin_uuid);
       RETURN LOWER(CONCAT(
            IF(swap_flag, SUBSTR(hex_uuid, 9, 8),SUBSTR(hex_uuid, 1, 8)), '-',
            IF(swap_flag, SUBSTR(hex_uuid, 5, 4),SUBSTR(hex_uuid, 9, 4)), '-',
            IF(swap_flag, SUBSTR(hex_uuid, 1, 4),SUBSTR(hex_uuid, 13, 4)), '-',
            SUBSTR(hex_uuid, 17, 4), '-',
            SUBSTR(hex_uuid, 21)
        ));
    END$$


CREATE
    FUNCTION UUID_TO_BIN(str_uuid CHAR(36), swap_flag BOOLEAN)
    RETURNS BINARY(16)
    DETERMINISTIC
    BEGIN
      RETURN UNHEX(CONCAT(
          IF(swap_flag, SUBSTR(str_uuid, 15, 4),SUBSTR(str_uuid, 1, 8)),
          SUBSTR(str_uuid, 10, 4),
          IF(swap_flag, SUBSTR(str_uuid, 1, 8),SUBSTR(str_uuid, 15, 4)),
          SUBSTR(str_uuid, 20, 4),
          SUBSTR(str_uuid, 25))
      );
    END$$

DELIMITER ;

Tests:

mysql> select '07a2f327-103a-11e9-8025-00ff5d11a779' as uuid, BIN_TO_UUID(UUID_TO_BIN('07a2f327-103a-11e9-8025-00ff5d11a779', 0), 0) as flip_flop;
+--------------------------------------+--------------------------------------+
| uuid                                 | flip_flop                            |
+--------------------------------------+--------------------------------------+
| 07a2f327-103a-11e9-8025-00ff5d11a779 | 07a2f327-103a-11e9-8025-00ff5d11a779 |
+--------------------------------------+--------------------------------------+
1 row in set (0.00 sec)

mysql> select '07a2f327-103a-11e9-8025-00ff5d11a779' as uuid, BIN_TO_UUID(UUID_TO_BIN('07a2f327-103a-11e9-8025-00ff5d11a779', 1), 1) as flip_flop;
+--------------------------------------+--------------------------------------+
| uuid                                 | flip_flop                            |
+--------------------------------------+--------------------------------------+
| 07a2f327-103a-11e9-8025-00ff5d11a779 | 07a2f327-103a-11e9-8025-00ff5d11a779 |
+--------------------------------------+--------------------------------------+
1 row in set (0.00 sec)

More information

For more information on getting started with Doctrine, check out the "Getting Started with Doctrine" tutorial.

Contributing

Contributions are welcome! To contribute, please familiarize yourself with CONTRIBUTING.md.

Coordinated Disclosure

Keeping user information safe and secure is a top priority, and we welcome the contribution of external security researchers. If you believe you've found a security issue in software that is maintained in this repository, please read SECURITY.md for instructions on submitting a vulnerability report.

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Copyright and License

The ramsey/uuid-doctrine library is copyright © Ben Ramsey and licensed for use under the MIT License (MIT). Please see LICENSE for more information.