/**
* listClasses returns a list of available OrientDB classes for the current database
*
* @return OClass[]
*/
public function listClasses()
{
$res = $this->_cn->getDatabaseInfo();
/** @var OClass[] $hasSuper */
$hasSuper = [];
/** @var OClass[] $classes */
$classes = [];
foreach ($res['classes'] as $meta) {
$classes[$meta['name']] = $c = new OClass($meta);
if (!empty($meta->superClass)) {
$hasSuper[] = $c;
}
}
foreach ($hasSuper as $c) {
$c->setSuperClass($classes[$c->getSuperClassName()]);
}
return $classes;
}
/**
* @param array $queries
*
* @return array
* @throws SQLBatchException
*/
private function executeQueries(array $queries)
{
$results = $this->binding->sqlBatch($queries)['result'];
if (!is_array($results) || count($results) !== 1) {
throw new SQLBatchException('unexpected response from server when executing batch request');
}
$res = [];
foreach ($results[0] as $k => $v) {
if ($k[0] === 'n') {
$res[substr($k, 1)] = $v;
}
}
return $res;
}
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);
}
}
public function __construct(BindingInterface $binding, Cache $cache)
{
$this->binding = $binding;
$this->cache = $cache;
$this->databaseName = $binding->getDatabaseName();
}
