Inheritance of Symfony Lifecycle Callback annotations - symfony

Question

I am on Symfony 4, and I have a problem with Lifecycle callbacks. I have two classes, one model and a child of this model. I would like that every child of the model have the same PrePersist callback but the callback is not triggered. Is it normal or did I do something wrong ?
<?php
// src/Models/QuestionModel.php
namespace App\Models;
use Doctrine\ODM\MongoDB\Mapping\Annotations as ODM;
use Symfony\Component\Validator\Constraints as Assert;
/**
* #ODM\MappedSuperclass
* #ODM\HasLifecycleCallbacks
*/
class QuestionModel
{
/**
* #ODM\Id(strategy="AUTO")
*/
protected $id;
/**
* #ODM\Field(type="date")
*/
protected $createdAt;
/**
* #ODM\PrePersist
*/
public function setCreatedAtValue() {
$this->createdAt = new \DateTime();
}
and the child:
<?php
// src/Document/CDN/Question.php
namespace App\Document\CDN;
use Doctrine\ODM\MongoDB\Mapping\Annotations as ODM;
use App\Models\QuestionModel;
/**
* #ODM\Document(collection="CDNQuestion")
* #ODM\HasLifecycleCallbacks
*/
class Question extends QuestionModel
{
}
If it is normal that it does not work, do you have a solution for my problem ?
Thx

Answer 1

I would recommend to create separate class for that. Trait should be excellent choice. I have something like that in my projects.
trait TimestampableTrait
{
/**
* #var \DateTime
*
* #ORM\Column(type="datetime", nullable=false)
*/
protected $createdAt;
/**
* #var \DateTime
*
* #ORM\Column(type="datetime", nullable=true)
*/
protected $updatedAt;
/**
* #ORM\PrePersist
*/
public function updateCreatedAt()
{
$this->createdAt = new \DateTime();
}
/**
* #ORM\PreUpdate
*/
public function preUpdate()
{
$this->updatedAt = new \DateTime();
}
/**
* #return \DateTime|null
*/
public function getUpdatedAt()
{
return $this->updatedAt;
}
/**
* #return \DateTime
*/
public function getCreatedAt()
{
return $this->createdAt;
}
/**
* #return string
*/
public function getCreatedAtFormatted()
{
if ($this->createdAt instanceof \DateTime) {
return $this->createdAt->format('d/m/Y h:i:s A');
}
return '';
}
}