public function onSave(FieldEvent $event)
{
if ($event->getValue()) {
$findAttachment = $this->objectManager->getRepository('BigfishMediaBundle:ImageInstance')->find($event->getValue());
$content = $event->getContent();
if ($findAttachment) {
$content = $event->getContent();
$content->setImageInstance($findAttachment);
$content->setVarchar($findAttachment->getId());
$this->objectManager->persist($content);
$this->objectManager->flush();
} else {
$this->objectManager->remove($content);
$this->objectManager->flush();
}
}
}
