public function process()
 {
     if ($this->component instanceof IControl && $this->component->isOmitted()) {
         return;
     }
     $data = $this->component instanceof MultiChoiceControl ? $this->component->getValue() : $this->component->getValues(TRUE);
     $associationMapping = $this->wrappedEntity->getMetadata()->getAssociationMapping($this->component->name);
     $this->type = $associationMapping['type'];
     $targetEntityMetadata = $this->entityManager->getClassMetadata($associationMapping['targetEntity']);
     $this->processIdentifier($targetEntityMetadata);
     $this->prepareCollection();
     $targetEntityRepository = $this->entityManager->getRepository($associationMapping['targetEntity']);
     foreach ($data as $rowKey => $row) {
         $newEntity = NULL;
         if (is_array($row)) {
             $values = $this->getIdentifierValues($row);
             if ($values && !($newEntity = $this->popByIdentifier($values)) && $this->type == ClassMetadata::MANY_TO_MANY) {
                 $newEntity = $targetEntityRepository->findOneBy($values);
             }
             if (!$newEntity) {
                 $newEntity = $targetEntityMetadata->newInstance();
             }
             $this->mapper->saveValues($this->component[$rowKey], $newEntity);
         } elseif ($row) {
             $currentValue = $this->component instanceof MultiChoiceControl ? $row : $rowKey;
             if (!$this->popByIdentifier([$currentValue])) {
                 $newEntity = $targetEntityRepository->find($currentValue);
             }
         }
         if ($newEntity) {
             $this->addEntity($newEntity);
         }
     }
     foreach ($this->forRemoval as $entityForRemove) {
         $this->collection->removeElement($entityForRemove);
     }
     $this->mapper->execute(function () {
         $this->updateCollection();
     });
     $this->validate();
 }