/** * Use the parent field together with an auto generated name to generate the id * * {@inheritDoc} */ public function generate($document, ClassMetadata $class, DocumentManager $dm, $parent = null) { if (null === $parent) { $parent = $class->parentMapping ? $class->getFieldValue($document, $class->parentMapping) : null; } $id = $class->getFieldValue($document, $class->identifier); if (empty($id) && null === $parent) { throw IdException::noIdNoParent($document, $class->parentMapping); } if (empty($parent)) { return $id; } try { $parentNode = $dm->getNodeForDocument($parent); $existingNames = (array) $parentNode->getNodeNames(); } catch (RepositoryException $e) { // this typically happens while cascading persisting documents $existingNames = array(); } $name = NodeHelper::generateAutoNodeName($existingNames, $dm->getPhpcrSession()->getWorkspace()->getNamespaceRegistry()->getNamespaces(), '', ''); return $this->buildName($document, $class, $dm, $parent, $name); }