postPersist action - 坚持另一个实体

Question

[EDITS]

• Based on goto answer, I edited the ProjectListener.php file.

[SETTINGS]

• Symfony 3.4
• Projet entity
• Other child entities
• Related to a previous question

[PROBLEM]

Each time a Projet entity is persisted, it should be followed by some child entites.

I currently have a ProjetListener class which handle prePersist() and preUpdate() and postPersist() events.

<kbd>AppBundle/Listener/ProjetListener.php</kbd>

class ProjetListener {
    private $tokenStorage;

    public function __construct(TokenStorage $tokenStorage) {
        $this->tokenStorage=$tokenStorage;
    }

    public function prePersist(Projet $projet, LifecycleEventArgs $args) {
        $projet->setUtilisateur($this->tokenStorage->getToken()->getUser())
               ->setCreation(new \DateTime())
               ->setModification(new \DateTime())
               ->setSupprime(false);
    }

    public function preUpdate(Projet $projet, PreUpdateEventArgs $args) {
        $projet->setModification(new \DateTime());
    }

    public function postPersist(Projet $projet, LifecycleEventArgs $args) {
        $tremie=new Tremie();
        $tremie->setPosition(false)
               ->setForme(0)
               ->setTra(2000)
               ->setTr1(2000)
               ->setTr2(2000)
               ->setTre3(2000)
               ->setDecalTra(0)
               ->setDebordTr1(0)
               ->setDebordTr2(0)
               ->setReculMax(3500)
               ->setProjet($projet);
        $em=$args->getEntityManager();
        $em->persist($tremie);
    }
}

As soon as my Projet entity is persisted, I would like to persist one Tremie entity, and set Projet as it's parent.
As it's now, the postPersist() event doesn't persist a Tremie entity.

Symfony successfully create a Projet entity, but doesn't create a Tremieentity afterward.
There is no error returned.

What should be added/edited to persist Tremie as soon as Projet was persisted, and set Projetas his parent?

Answer 1

You have access to the entity manager using

$entityManager = $args->getEntityManager();

You could maybe do: (I never tried it)

public function prePersist(Projet $projet, LifecycleEventArgs $args) {
    $projet->setUtilisateur($this->tokenStorage->getToken()->getUser())
           ->setCreation(new \DateTime())
           ->setModification(new \DateTime())
           ->setSupprime(false);

    $tremie->setPosition(false)
           ->setForme(0)
           ->setTra(2000)
           ->setTr1(2000)
           ->setTr2(2000)
           ->setTre3(2000)
           ->setDecalTra(0)
           ->setDebordTr1(0)
           ->setDebordTr2(0)
           ->setReculMax(3500)
           ->setProjet($project);
    $args->getEntityManager()->persist($tremie);
}