Doctrine\ORM\UnitOfWork::executeInserts PHP Method

    private function executeInserts($class)
    {
        $className = $class->name;
        $persister = $this->getEntityPersister($className);
        
        $hasLifecycleCallbacks = isset($class->lifecycleCallbacks[Events::postPersist]);
        $hasListeners = $this->evm->hasListeners(Events::postPersist);
        if ($hasLifecycleCallbacks || $hasListeners) {
            $entities = array();
        }
        
        foreach ($this->entityInsertions as $oid => $entity) {
            if (get_class($entity) === $className) {
                $persister->addInsert($entity);
                unset($this->entityInsertions[$oid]);
                if ($hasLifecycleCallbacks || $hasListeners) {
                    $entities[] = $entity;
                }
            }
        }

        $postInsertIds = $persister->executeInserts();

        if ($postInsertIds) {
            // Persister returned post-insert IDs
            foreach ($postInsertIds as $id => $entity) {
                $oid = spl_object_hash($entity);
                $idField = $class->identifier[0];
                $class->reflFields[$idField]->setValue($entity, $id);
                $this->entityIdentifiers[$oid] = array($idField => $id);
                $this->entityStates[$oid] = self::STATE_MANAGED;
                $this->originalEntityData[$oid][$idField] = $id;
                $this->addToIdentityMap($entity);
            }
        }
        
        if ($hasLifecycleCallbacks || $hasListeners) {
            foreach ($entities as $entity) {
                if ($hasLifecycleCallbacks) {
                    $class->invokeLifecycleCallbacks(Events::postPersist, $entity);
                }
                if ($hasListeners) {
                    $this->evm->dispatchEvent(Events::postPersist, new LifecycleEventArgs($entity, $this->em));
                }
            }
        }
    }