Notify strategy listener is not attached for new entities

Guilherme Blanco added a comment - 23/May/12 3:54 AM This is intentional to me. According to code and documentation, PropertyChanged is supposed to operate over updates, never over inserts. I experimented changing the code to also notify about changed during new and the consequences were very drastic. Internally, propertyChanged creates entityChangesets that implies an UPDATE. Marking ticket as won't fix.

Oleg Namaka added a comment - 24/May/12 4:05 AM - edited In that case the Notify strategy is partially broken: Category entity: .............. *\Entity\Category * * @ORM\Table(name= "category" ) * @ORM\Entity */ class Category implements TimestampableInterface /** * Caption * * @ var string $caption * @ORM\Column(name= "caption" , type= "text" , nullable= true ) */ protected $caption; /** * Added At * * @ var \DateTime $addedAt * * @ORM\Column(name= "added_at" , type= "datetime" , nullable= true ) */ protected $addedAt; public function setCaption($caption) { if ($ this ->caption != $caption) { $ this ->_onPropertyChanged('caption', $ this ->caption, $caption); $ this ->caption = $caption; } } public function setAddedAt($addedAt) { $oldValue = $ this ->addedAt; $ this ->addedAt = $addedAt; if ((is_null($oldValue) || ($oldValue->getTimestamp() != $ this ->addedAt->getTimestamp()))) { $ this ->_onPropertyChanged('addedAt', $oldValue, $ this ->addedAt); } } protected function _onPropertyChanged($propName, $oldValue, $newValue) { if ($ this ->_listeners) { /** @ var $listener \Doctrine\Common\PropertyChangedListener */ foreach ($ this ->_listeners as $listener) { $listener->propertyChanged($ this , $propName, $oldValue, $newValue); } } } public function addPropertyChangedListener(PropertyChangedListener $listener) { $ this ->_listeners[] = $listener; } .............. OnFlush event handler: .............. foreach ($uow->getScheduledEntityInsertions() as $entity) { if ($entity instanceof TimestampableInterface) { $entity->setUpdatedAt( new \DateTime('now')); $entity->setAddedAt( new \DateTime('now')); $uow->recomputeSingleEntityChangeSet($em->getClassMetadata(get_class($entity)), $entity); } } ............... Code that uses the entity: $cat = new \Entity\Category(); // @todo this is a workaround until the http://www.doctrine-project.org/jira/browse/DDC-1775 is resolved $cat->addPropertyChangedListener($ this ->_em->getUnitOfWork()); $cat->setCaption('Please explain'); $ this ->_em->persist($cat); $ this ->_em->flush(); If there is no explicit call to the addPropertyChangedListener method, the caption field gets saved but the $addedAt remains null after flush. The entity does not have the attached listener so UnitOfWork does not know anything about the update that happened in the OnFlush event, and the recomputeSingleEntityChangeSet method skips entities with Notify strategy.

Benjamin Eberlei added a comment - 27/May/12 11:42 AM Changing computeScheduleInsertsChangeSets() would solve this, but it would also mean that the notifier gets injected more than once. private function computeScheduleInsertsChangeSets() { foreach ($ this ->entityInsertions as $entity) { $class = $ this ->em->getClassMetadata(get_class($entity)); $ this ->computeChangeSet($class, $entity); if ($entity instanceof NotifyPropertyChanged) { $entity->addPropertyChangedListener($ this ); } } } I think injecting in scheduleForInsert() is ok, but we have to look at potential problems also

Benjamin Eberlei added a comment - 07/Jul/12 3:50 PM Fixed