Model.php

<?php

declare(strict_types=1);

namespace MatchBot\Domain;

use Doctrine\ORM\Mapping as ORM;

abstract class Model
{
    /**
     * @var int|null
     */
    #[ORM\Id]
    #[ORM\Column(type: 'integer', options: ['unsigned' => true])]
    #[ORM\GeneratedValue(strategy: 'AUTO')]
    protected ?int $id = null;

    /**
     * @return int|null
     */
    public function getId(): ?int
    {
        return $this->id;
    }

    /**
     * @param int $id
     */
    public function setId(int $id): void
    {
        $this->id = $id;
    }

    public function hasBeenPersisted(): bool
    {
        return $this->id !== null;
    }

    public function __toString(): string
    {
        return "Instance of " . get_class($this);
    }
}