/**
* Compute the query to update all the entities
*
* @param SplObjectStorage $entities Entities that need to be updated
*
* @return Query
*/
protected function computeUpdateQuery(\SplObjectStorage $entities)
{
$qb = new QueryBuilder();
$toUpdate = [];
$idx = 0;
foreach ($entities as $entity) {
$class = $this->getClass($entity);
$metadata = $this->metadataRegistry->getMetadata($class);
$data = $entities[$entity];
$idProp = $metadata->getId()->getProperty();
$id = $this->accessor->getValue($entity, $idProp);
$var = 'e' . (string) $idx;
if ($metadata instanceof NodeMetadata) {
$qb->matchNode($var, $class, [$idProp => $id]);
} else {
$qb->addExpr($qb->expr()->matchNode()->relatedTo($qb->expr()->matchRelationship($var, $class, [$idProp => $id])));
}
$toUpdate[$var] = $data;
$idx++;
}
foreach ($toUpdate as $var => $value) {
$qb->update($var, $value);
}
return $qb->getQuery();
}
