symfony-playground/src/Entity/MerDM.php

<?php

namespace App\Entity;

use App\Repository\MerDMRepository;
use Doctrine\ORM\Mapping as ORM;

#[ORM\Entity(repositoryClass: MerDMRepository::class)]
class MerDM extends Platform
{
    #[ORM\Id]
    #[ORM\GeneratedValue]
    #[ORM\Column(type: 'integer')]
    private $id;

    #[ORM\Column(type: 'integer')]
    private $offer_id;

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

    public function getOfferId(): ?int
    {
        return $this->offer_id;
    }

    public function setOfferId(int $offerId): self
    {
        $this->offer_id = $offerId;

        return $this;
    }
}