Symfony 5.4 detect autmatically the entity properties have changed with doctrine.orm.entity

I have created an event listener to send email if entity name has updated. My question is, I’d like know what properties have changed (e.g), $entity->getName() = “Jim” became “Jimmy” ?

/!\ I'll detect only changed properties.


public function postUpdate(Entity $entity, LifecycleEventArgs $event): void {
    // “Jim”


    // Now is “Jimmy”

}

Thanks

CodePudding user response：

$event->get(Entity|Object)Manager()->getUnitOfWork()->getEntityChangeSet($entity)

CodePudding user response：

I think it would better to use a preUpdateEvent in your case.

Doctrine\ORM\Event\PreUpdateEventArgs contains a few method that would help your in your use case.

For example hasChangedField, getNewValue and getOldValue.

/**
 * Checks if field has a changeset.
 *
 * @param string $field
 *
 * @return bool
 */
public function hasChangedField($field)
{
    return isset($this->entityChangeSet[$field]);
}

So you could replace your postUpdate listener with a preUpdate listener:

public function preUpdate(Entity $entity, PreUpdateEventArgs $args): void {
    if($args->hasChangedField('name')){
        $newName = $args->getNewValue('name');
        $oldName = $args->getOldValue('name');
    }

}

Otherwise if you want to keep your postUpdate listener, you will need use the unit of work to find your entity changeset and see if the name field has changed.