--- date: 2020-11-17 id: 5dbf9ea2-81ad-4b35-83ba-e4ab2e247c9a title: ULID Constraint --- # Syntax ``` php // src/Entity/Product.php namespace App\Entity; use Doctrine\ORM\Mapping as ORM; use Symfony\Component\Validator\Constraints as Assert; /** * @ORM\Entity(repositoryClass="App\Repository\ProductRepository") */ class Product { /** * @ORM\Column(type="ulid") * @Assert\Ulid */ private $someProperty; // ... } ```