ramsey/uuid · error · UnsupportedOperationException

The provided factory does not support the uuid7() method

Error message

The provided factory does not support the uuid7() method

What it means

Uuid::uuid7() delegates to the globally registered factory, but uuid7() is not part of UuidFactoryInterface — it is a capability of the default Ramsey\Uuid\UuidFactory (version 7 UUIDs were added in ramsey/uuid 4.7). When the registered factory lacks a uuid7() method, the method_exists() check fails and Ramsey\Uuid\Exception\UnsupportedOperationException is thrown. Custom or mock factories written against older versions are the usual culprits.

Source

Thrown at src/Uuid.php:695

    /**
     * Returns a version 7 (Unix Epoch time) UUID
     *
     * @param DateTimeInterface | null $dateTime An optional date/time from which to create the version 7 UUID. If not
     *     provided, the UUID is generated using the current date/time.
     *
     * @return UuidInterface A UuidInterface instance that represents a version 7 UUID
     */
    public static function uuid7(?DateTimeInterface $dateTime = null): UuidInterface
    {
        $factory = self::getFactory();

        if (method_exists($factory, 'uuid7')) {
            /** @var UuidInterface */
            return $factory->uuid7($dateTime);
        }

        throw new UnsupportedOperationException('The provided factory does not support the uuid7() method');
    }

    /**
     * Returns a version 8 (custom format) UUID
     *
     * The bytes provided may contain any value according to your application's needs. Be aware, however, that other
     * applications may not understand the semantics of the value.
     *
     * @param string $bytes A 16-byte octet string. This is an open blob of data that you may fill with 128 bits of
     *     information. Be aware, however, bits 48 through 51 will be replaced with the UUID version field, and bits 64
     *     and 65 will be replaced with the UUID variant. You MUST NOT rely on these bits for your application needs.
     *
     * @return UuidInterface A UuidInterface instance that represents a version 8 UUID
     *
     * @pure
     */
    public static function uuid8(string $bytes): UuidInterface
    {

View on GitHub (pinned to da5b521600)

Solutions

1. Make the custom factory extend Ramsey\Uuid\UuidFactory so uuid7() is inherited
2. Add uuid7(?DateTimeInterface $dateTime = null): UuidInterface to the custom factory and implement or delegate it
3. Update test doubles to stub uuid7()
4. Guard call sites: if (!method_exists(Uuid::getFactory(), 'uuid7')) fall back to Uuid::uuid4()

Example fix

// before: custom factory written pre-v7
Uuid::setFactory($legacyFactory);
$uuid = Uuid::uuid7();
// UnsupportedOperationException: The provided factory does not support the uuid7() method

// after: extend the default factory
final class ApplicationUuidFactory extends UuidFactory {}
Uuid::setFactory(new ApplicationUuidFactory());
$uuid = Uuid::uuid7(); // works, inherited from UuidFactory

// Run before calling Uuid::uuid7()
if (!method_exists(Uuid::getFactory(), 'uuid7')) {
    throw new \RuntimeException('Registered UUID factory does not support uuid7()');
}

use Ramsey\Uuid\Uuid;
use Ramsey\Uuid\UuidFactory;

function factorySupportsUuid7(): bool
{
    return Uuid::getFactory() instanceof UuidFactory
        || method_exists(Uuid::getFactory(), 'uuid7');
}

use Ramsey\Uuid\Exception\UnsupportedOperationException;

try {
    $uuid = Uuid::uuid7($dateTime);
} catch (UnsupportedOperationException $e) {
    $uuid = Uuid::uuid4(); // degrade to v4 only if acceptable for your ordering needs
}

When it happens

Trigger: Calling Uuid::setFactory($factory) where $factory implements only UuidFactoryInterface or was written before uuid7() existed (mocks, decorators, minimal custom factories), then calling Uuid::uuid7() or Uuid::uuid7($dateTime).

Common situations: Adopting v7 UUIDs in an application that already registers a custom factory; PHPUnit mocks of the factory created without uuid7(); decorator factories wrapping an inner factory without forwarding new methods; upgrading ramsey/uuid while DI bindings still construct an old wrapper.

Related errors

• The provided factory does not support the uuid8() method
• The method fromHexadecimal() does not exist on the provided
• Fields used to create a UuidV7 must represent a version 7 (U
• Fields used to create a UuidV2 must represent a version 2 (D
• Fields used to create a UuidV3 must represent a version 3 (n

AI-assisted analysis of ramsey/uuid@da5b521600 (2026-08-21). Data as JSON: /api/errors/8410ef6befddf657. Report an issue: GitHub.