How to check if entity changed in Doctrine 2?

Question

I need to check if a persisted entity has changed and needs to be updated on the database. What I made (and did not work) was the following:

$product = $enti         


        

Answer 1

Doctrine2 Docs. 17. Change Tracking Policies

If you use third form (17.3. Notify) as i do, you can test if your entity is changed doing:

$uow = $entityManager->getUnitOfWork();
$uow->computeChangeSets();
$aChangeSet = $uow->getEntityChangeSet($oEntity);

If nothing changed it will return blank array.