Edit file File name : CommentTableTypeTrait.php Content :<?php /* * This file is part of the Kimai time-tracking app. * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace App\Entity; use Doctrine\ORM\Mapping as ORM; use Symfony\Component\Validator\Constraints as Assert; trait CommentTableTypeTrait { /** * @var int * * @ORM\Id * @ORM\GeneratedValue * @ORM\Column(name="id", type="integer") */ private $id; /** * @var string * * @ORM\Column(name="message", type="text", nullable=false) * @Assert\NotNull() */ private $message; /** * @var User * * @ORM\ManyToOne(targetEntity="App\Entity\User") * @ORM\JoinColumn(onDelete="CASCADE", nullable=false) * @Assert\NotNull() */ private $createdBy; /** * @var \DateTime * * @ORM\Column(name="created_at", type="datetime", nullable=false) * @Assert\NotNull() */ private $createdAt; /** * @var bool * * @ORM\Column(name="pinned", type="boolean", nullable=false, options={"default": false}) * @Assert\NotNull() */ private $pinned = false; public function __construct() { $this->createdAt = new \DateTime(); } public function getId(): ?int { return $this->id; } public function getMessage(): ?string { return $this->message; } public function setMessage(string $message) { $this->message = $message; } public function getCreatedBy(): ?User { return $this->createdBy; } public function setCreatedBy(User $createdBy) { $this->createdBy = $createdBy; } public function getCreatedAt(): ?\DateTime { return $this->createdAt; } public function setCreatedAt(\DateTime $createdAt) { $this->createdAt = $createdAt; } public function isPinned(): bool { return $this->pinned; } public function setPinned(bool $pinned) { $this->pinned = $pinned; } } Save