Doctrine lifecycle callbacks don’t fire - development

Doctrine lifecycle callbacks don’t fire

I want to create an identifier for my invoices, after I persist them. I’m using an auto generated ID in my identifier, so I have to use some postPersist callback to achieve this. However, my postPersist callback doesn’t get fired.

Here is my AbstractInvoice entity:

<?php

namespace AppInvoice;

use DoctrineORMMapping as ORM;

/**
 * @ORMEntity
 * @ORMHasLifecycleCallbacks
 * @ORMTable("invoices")
 * @ORMInheritanceType("SINGLE_TABLE")
 * @ORMDiscriminatorColumn(name="type", type="integer")
 * @ORMDiscriminatorMap({
 *     "0"="Regular",
 *     "1"="Credit"
 * })
 */
abstract class AbstractInvoice
{
    /**
     * @ORMId()
     * @ORMColumn(type="integer")
     * @ORMGeneratedValue(strategy="AUTO")
     * @var int
     */
    protected $id;

    /**
     * @ORMColumn(type="string")
     * @var string
     */
    protected $identifier;

    /**
     * @ORMPostPersist
     */
    protected function onPersist(): void
    {
        $this->identifier = '1' . str_pad($this->id, 5, '0', STR_PAD_LEFT);
    }
}

And here is my Regular invoice entity:

<?php

namespace AppInvoice;

use DoctrineORMMapping as ORM;

/**
 * @ORMEntity
 */
class Regular extends AbstractInvoice
{
}

I create an instance of the regular invoice entity in my controller:

<?php

namespace App;

use AppInvoiceRegular;

class Controller
{
    public function handle(InvoiceRepository $invoices)
    {
        $invoice = new Regular();
        $invoices->add($invoice);
    }
}

Which uses this repository:

<?php

namespace App;

use AppInvoiceAbstractInvoice;
use DoctrineORMEntityRepository;

class InvoiceRepository extends EntityRepository
{
    public function add(AbstractInvoice $invoice): void
    {
        $this->_em->persist($invoice);
        $this->flush();
    }
}

The invoice gets stored fine, only the onPersist method doesn’t get fired. I already tried implementing the callback in the sub class (Regular), switching to a public method. No success there. Am I missing something?

Thank you!

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