private function loadIndirectReferenceCollection(PersistentCollection $collection)
{
$rows = $collection->getData();
if (count($rows) === 0) {
return;
}
$mapping = $collection->getMapping();
$prop = $mapping['direction'] === 'in' ? 'out' : 'in';
$rids = [];
$results = [];
$edgeRids = [];
foreach ($rows as $row) {
if (is_string($row)) {
// edge RID
$edgeRids[] = $row;
continue;
}
// edge is loaded, so we
$edgeRid = $row['@rid'];
if (is_string($row[$prop])) {
$rids[$row[$prop]][] = $edgeRid;
} else {
$results[$edgeRid] = $rows[$prop];
}
}
// load edges and their immediate children (*:1)
if ($edgeRids) {
$loaded = $this->binding->query(sprintf('SELECT FROM [%s]', implode(',', $edgeRids)), -1, '*:1');
$results = array_merge($results, self::extractVertexes($loaded, $prop));
}
if ($rids) {
$loaded = $this->binding->query(sprintf('SELECT FROM [%s]', implode(',', array_keys($rids))));
foreach ($loaded as $row) {
$rid = $row['@rid'];
foreach ($rids[$rid] as $edge) {
$results[$edge] = $row;
}
}
}
foreach ($results as $key => $data) {
$document = $this->uow->getOrCreateDocument($data);
$collection->set($key, $document);
}
}
