Lifecycle callback postUpdate to send an email in Symfony - php

Question

I'm trying to send an email when the entity is updating (and getVerified), I used the event Suscriber from doctrine, but I don't know exactly how to do that.
My MailEvent.php :
class MailEvent
{
// the entity listener methods receive two arguments:
// the entity instance and the lifecycle event
public function postUpdate(Candidature $candidature, Annonce $annonce, MailerInterface $mailer, LifecycleEventArgs $event): void
{
$change = $event->getEntityChangeSet();
if ($change instanceof Candidature and $candidature->getIsVerified()) {
$email = (new Email())
->from('trtconseilexample#gmail.com')
->to($annonce->getEmail())
->subject('Vous avez un nouveau candidat !')
->text("{$candidature->getNom()} {$candidature->getPrenom()} a postulé à votre annonce, vous trouverez son CV en pièce jointe !")
->attachFromPath("public/uploads/images/{$candidature->getCv()}");
;
$mailer->send($email);
}
}
If someone can help me understand, thank you.
EDIT: Problem solve! Thank you all !
MailEvent.php:
class MailEvent
{
// the entity listener methods receive two arguments:
// the entity instance and the lifecycle event
public function postUpdate(Candidature $candidature, LifecycleEventArgs $event)
{
$request = $this->requestStack->getCurrentRequest();
$entityManager = $this->entityManager;
$annonce = $entityManager->getRepository(Annonce::class)->findOneBy([
'id' => $request->get('id')
]);
if ($candidature->getIsVerified()) {
$email = (new Email())
->from('trtconseilexample#gmail.com')
->to($annonce->getEmail())
->subject('Vous avez un nouveau candidat !')
->text("{$candidature->getNom()} {$candidature->getPrenom()} a postulé à votre annonce, vous trouverez son CV en pièce jointe !")
->attachFromPath("public/uploads/images/{$candidature->getCv()}");
;
$this->mailer->send($email);
}
}
public function __construct(
private readonly EntityManagerInterface $entityManager,
private readonly MailerInterface $mailer,
private readonly RequestStack $requestStack
){
}
}

Answer 1

You need to make sure you register your listener in your services.yaml
App\EventListener\MailEvent:
tags:
- name: 'doctrine.orm.entity_listener'
event: 'postUpdate'
entity: 'App\Entity\Candidature'
Then you need the postUpdate function inside your listener,
public function postUpdate(Candidature $candidature, LifecycleEventArgs $event): void
{
...
}
It can only take 2 parameters, if you need access to services you need to use the dependency injection in the constructor :
public function __construct(
private readonly AnnonceRepository $annonceRepository,
private readonly MailerInterface $mailer,
) {
}
Then you can use these inside your postUpdate function, I do not know how you get the related Annonce in your project but you could use the repository to go and fetch it from the database.
public function postUpdate(Candidature $candidature, LifecycleEventArgs $event): void
{
//maybe ?
$annonce = $this->annonceRepository->findOneBy["candidature" => $candidature];
//This has to be a Candidature entity, as defined in the services.yaml, so no need to check that, you also do not use the changeset at all so no need for that either
if ($candidature->getIsVerified()) {
$email = (new Email())
->from('trtconseilexample#gmail.com')
->to($annonce->getEmail())
->subject('Vous avez un nouveau candidat !')
->text("{$candidature->getNom()} {$candidature->getPrenom()} a postulé à votre annonce, vous trouverez son CV en pièce jointe !")
->attachFromPath("public/uploads/images/{$candidature->getCv()}");
;
$this->mailer->send($email);
}