/**
* Create all queries to insert al new entities
*
* @return Query
*/
protected function computeInsertQuery()
{
$nodes = new \SplObjectStorage();
$rels = new \SplObjectStorage();
$qb = new QueryBuilder();
$nodeIndex = 0;
$relIndex = 0;
foreach ($this->scheduledForInsert as $entity) {
$class = $this->getClass($entity);
$metadata = $this->metadataRegistry->getMetadata($class);
if ($metadata instanceof NodeMetadata) {
$nodes->attach($entity, $nodeIndex);
$nodeIndex++;
} else {
$rels->attach($entity, $relIndex);
$relIndex++;
}
}
$matchNodeIdx = 0;
$relsToCreate = [];
foreach ($rels as $rel) {
$class = $this->getClass($rel);
$metadata = $this->metadataRegistry->getMetadata($class);
$startNode = $this->accessor->getValue($rel, $metadata->getStartNode());
$endNode = $this->accessor->getValue($rel, $metadata->getEndNode());
if (!$nodes->contains($startNode)) {
$startNodeClass = $this->getClass($startNode);
$startNodeMeta = $this->metadataRegistry->getMetadata($startNodeClass);
$startNodeIdProp = $startNodeMeta->getId()->getProperty();
$startNodeId = $this->accessor->getValue($startNode, $startNodeIdProp);
$startVar = 'mn' . (string) $matchNodeIdx;
$matchNodeIdx++;
$qb->matchNode($startVar, $startNodeClass, [$startNodeIdProp => $startNodeId]);
} else {
$startVar = 'n' . (string) $nodes[$startNode];
}
if (!$nodes->contains($endNode)) {
$endNodeClass = $this->getClass($endNode);
$endNodeMeta = $this->metadataRegistry->getMetadata($endNodeClass);
$endNodeIdProp = $endNodeMeta->getId()->getProperty();
$endNodeId = $this->accessor->getValue($endNode, $endNodeIdProp);
$endVar = 'mn' . (string) $matchNodeIdx;
$matchNodeIdx++;
$qb->matchNode($endVar, $endNodeClass, [$endNodeIdProp => $endNodeId]);
} else {
$endVar = 'n' . (string) $nodes[$endNode];
}
$data = $this->getEntityData($rel, $metadata);
$relsToCreate[] = ['startVar' => $startVar, 'endVar' => $endVar, 'var' => 'r' . (string) $rels[$rel], 'class' => $metadata->getClass(), 'data' => $data];
}
foreach ($nodes as $node) {
$class = $this->getClass($node);
$metadata = $this->metadataRegistry->getMetadata($class);
$data = $this->getEntityData($node, $metadata);
$qb->create('n' . (string) $nodes[$node], $class, $data);
}
foreach ($relsToCreate as $rel) {
$qb->createRelationship($rel['startVar'], $rel['endVar'], $rel['var'], $rel['class'], $rel['data']);
}
return $qb->getQuery();
}