Symfony Entity on first save

Question

In Symfony using doctrine, whats the best way to run a certain function just before an entity is saved/persisted to the database. I only want it to be run once in its lifetime so I guess the construction function is no good.

Answer 1

or

You can either call that function just before the $em->persist($entity); function in the controller.

But PrePersist is the cleaner way but for testing and small stuff , you can put before the save function

Answer 2

Use LifecycleCallback named PrePersist as explained in the doc : http://symfony.com/doc/current/book/doctrine.html#lifecycle-callbacks