Check if entity was already persisted to EntityManager in Symfony2
yes you shoud use the unitOfWork http://phpdox.de/demo/Symfony2/classes/Doctrine_ORM_UnitOfWork.xhtml#isEntityScheduled
$uow = $this->getDoctrine()->getManager()->getUnitOfWork()$exist = $uow->isEntityScheduled( $entity );
You could add a serialize method in your object that would create a string of the pertinent data in your model like..
public function serialize(){ return serialize(array( $this->field1, $this->field2, .. etc .. ));}And then before persisting use the scheduled entity insertions to check whether the serialized data has been used before like..
$uow = $this->getDoctrine()->getManager()->getUnitOfWork()$insertions = $uow->getScheduledEntityInsertions();$insertions = new ArrayCollection($insertions);$scheduled = $insertions->filter( function(YourModel $model) use ($new) { return $model->serialize() === $new->serialize(); } )->first();// This will either return the relevant model or false