/**
* Schedules a document for upsert into the database and adds it to the
* identity map
*
* @param ClassMetadata $class
* @param object $document The document to schedule for upsert.
* @throws \InvalidArgumentException
*/
public function scheduleForUpsert(ClassMetadata $class, $document)
{
$oid = spl_object_hash($document);
if ($class->isEmbeddedDocument) {
throw new \InvalidArgumentException("Embedded document can not be scheduled for upsert.");
}
if (isset($this->documentUpdates[$oid])) {
throw new \InvalidArgumentException("Dirty document can not be scheduled for upsert.");
}
if (isset($this->documentDeletions[$oid])) {
throw new \InvalidArgumentException("Removed document can not be scheduled for upsert.");
}
if (isset($this->documentUpserts[$oid])) {
throw new \InvalidArgumentException("Document can not be scheduled for upsert twice.");
}
$this->documentUpserts[$oid] = $document;
$this->documentIdentifiers[$oid] = $class->getIdentifierValue($document);
$this->addToIdentityMap($document);
}
