how to synchronize a value between two entities - php

Question

My project is a php project built with symfony 2.7
I have two entities: Lead and Customer.
Some user action create a Lead entity, and an admin can create a Customer entity based on a Lead.
Both the Lead and the Customer entity have a one to many relation to an entity Status (a Lead/Customer can have a status)
Up until now the Status of a Lead was independent from that of the Customer created from it (and vice versa), but now, I need to keep them synchronized.
They have to be the same.
I don't want to do that in controllers, because the status can be changed in many ways, and it's likely new ways will be added.
So I tried to do it with doctrine PreUpdate event listeners, but for some reason that's just not working (changing the other entity in the first one's PreUpdate event triggers a PreUpdate on the second one - and that probably kills it. but I'm not sure).
I'm going to keep trying fixing the PreUpdate event listeners, unless someone here has a better idea?
Thanks :-)
Customer PreUpdate listener
use CRM\CoreBundle\Entity\Customer;
use Doctrine\ORM\Event\PreUpdateEventArgs;
class CustomerPreUpdateListener
{
public function preUpdate(PreUpdateEventArgs $args)
{
$entity = $args->getObject();
if (!($entity instanceof Customer)) {
return;
}
if($this->isStatusChanged($args)) {
$this->syncParentLeadStatus($args);
}
}
private function isStatusChanged(PreUpdateEventArgs $args)
{
return $args->hasChangedField('status');
}
private function syncParentLeadStatus(PreUpdateEventArgs $args)
{
/** #var Customer $entity */
$entity = $args->getObject();
if(!$entity->getLead()) {
return;
}
$newStatus = $args->getNewValue('status');
$entity->getLead()->setStatus($newStatus);
$args->getEntityManager()->persist($entity->getLead());
}
}
Lead PreUpdate listener
use CRM\BasicLeadsBundle\Entity\Lead;
use CRM\CoreBundle\Entity\Customer;
use Doctrine\ORM\Event\PreUpdateEventArgs;
class LeadPreUpdateListener
{
public function preUpdate(PreUpdateEventArgs $args)
{
$entity = $args->getObject();
if (!($entity instanceof Lead)) {
return;
}
if($this->isStatusChanged($args)) {
$this->syncCustomerStatus($args);
}
}
private function isStatusChanged(PreUpdateEventArgs $args)
{
return $args->hasChangedField('status');
}
private function syncCustomerStatus(PreUpdateEventArgs $args)
{
/** #var Lead $entity */
$entity = $args->getObject();
if(0 === $entity->getCustomersCreated()->count()) {
return;
}
$newStatus = $args->getNewValue('status');
foreach ($entity->getCustomersCreated() as $customer) {
/** #var Customer $customer */
$customer->setStatus($newStatus);
$args->getEntityManager()->persist($customer);
}
}
}