Doctrine 2 Timestamps Trait

Timestamps.php

<?php

namespace App\Traits;

use Doctrine\ORM\Mapping as ORM;

/**
 * Trait TimeStampTrait
 * @package App\Traits
 */
trait TimestampsTrait
{
    /**
     * @var \DateTime
     * @ORM\Column(name="date_created", type="datetime")
     */
    private $dateCreated;

    /**
     * @var \DateTime
     * @ORM\Column(name="date_updated", type="datetime")
     */
    private $dateUpdated;

    ######################################
    ######     Getters Setters      ######
    ######################################

    /**
     * @param \DateTime $dateCreated
     * @return $this
     */
    public function setDateCreated($dateCreated)
    {
        $this->dateCreated = $dateCreated;

        return $this;
    }

    /**
     * @return \DateTime
     */
    public function getDateCreated()
    {
        return $this->dateCreated;
    }

    /**
     * @param \DateTime $dateUpdated
     * @return $this
     */
    public function setDateUpdated($dateUpdated)
    {
        $this->dateUpdated = $dateUpdated;

        return $this;
    }

    /**
     * @return \DateTime
     */
    public function getDateUpdated()
    {
        return $this->dateUpdated;
    }

    ######################################
    ######   Life Cycle Callbacks   ######
    ######################################

    /**
     * @ORM\PrePersist()
     */
    public function prePersist()
    {
        $this->dateCreated = new \DateTime();
        $this->preUpdate();
    }

    /**
     * @ORM\PreUpdate()
     */
    public function preUpdate()
    {
        $this->dateUpdated = new \DateTime();
    }
}

User.php

<?php

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;
use App\Traits\TimestampsTrait;

/**
 * @ORM\Table(name="tbl_users")
 * @ORM\Entity(repositoryClass="App\Repository\UserRepository")
 * @ORM\HasLifecycleCallbacks()
 */
class User
{
    use TimestampsTrait;
}