public function create($class)
{
$reflectionClass = new \ReflectionClass($class);
$annotation = $this->reader->getClassAnnotation($reflectionClass, RelationshipEntity::class);
$entityIdMetadata = null;
$startNodeMetadata = null;
$endNodeMetadata = null;
$propertiesMetadata = [];
$startNodeKey = null;
$endNodeKey = null;
foreach ($reflectionClass->getProperties() as $reflectionProperty) {
if (null === $entityIdMetadata && null !== ($idAnnotation = $this->reader->getPropertyAnnotation($reflectionProperty, GraphId::class))) {
$entityIdMetadata = new EntityIdMetadata($reflectionProperty->getName(), $reflectionProperty, new IdAnnotationMetadata());
continue;
}
if (null === $startNodeMetadata && null !== ($startAnnotation = $this->reader->getPropertyAnnotation($reflectionProperty, StartNode::class))) {
$startNodeClass = ClassUtils::getFullClassName($startAnnotation->targetEntity, $class);
$startNodeMetadata = $startNodeClass;
$startNodeKey = $reflectionProperty->getName();
continue;
}
if (null === $endNodeMetadata && null !== ($endAnnotation = $this->reader->getPropertyAnnotation($reflectionProperty, EndNode::class))) {
$endNodeClass = ClassUtils::getFullClassName($endAnnotation->targetEntity, $class);
$endNodeMetadata = $endNodeClass;
$endNodeKey = $reflectionProperty->getName();
continue;
}
if (null !== ($propertyAnnotation = $this->reader->getPropertyAnnotation($reflectionProperty, Property::class))) {
$propertiesMetadata[] = new EntityPropertyMetadata($reflectionProperty->getName(), $reflectionProperty, $this->propertyAnnotationMetadataFactory->create($class, $reflectionProperty->getName()));
}
}
return new RelationshipEntityMetadata($class, $reflectionClass, $annotation, $entityIdMetadata, $startNodeMetadata, $startNodeKey, $endNodeMetadata, $endNodeKey, $propertiesMetadata);
}
public function getCreateQuery($entity, $pov)
{
$class = ClassUtils::getFullClassName(get_class($entity), $pov);
$relationshipEntityMetadata = $this->em->getRelationshipEntityMetadata($class);
$startNode = $relationshipEntityMetadata->getStartNodeValue($entity);
$startNodeId = $this->em->getClassMetadataFor(get_class($startNode))->getIdValue($startNode);
$endNode = $relationshipEntityMetadata->getEndNodeValue($entity);
$endNodeId = $this->em->getClassMetadataFor(get_class($endNode))->getIdValue($endNode);
$relType = $this->classMetadata->getType();
$parameters = ['a' => $startNodeId, 'b' => $endNodeId, 'fields' => []];
foreach ($this->classMetadata->getPropertiesMetadata() as $propertyMetadata) {
$v = $propertyMetadata->getValue($entity);
$parameters['fields'][$propertyMetadata->getPropertyName()] = $v;
}
$query = 'MATCH (a), (b) WHERE id(a) = {a} AND id(b) = {b}' . PHP_EOL;
$query .= sprintf('CREATE (a)-[r:%s]->(b)', $relType) . PHP_EOL;
if (!empty($parameters['fields'])) {
$query .= 'SET r += {fields} ';
}
$query .= 'RETURN id(r) as id';
return Statement::create($query, $parameters);
}
private function hydrateQueryRecord(QueryResultMapper $resultMapper, Record $record)
{
$reflClass = new \ReflectionClass($resultMapper->getClassName());
$instance = $reflClass->newInstanceWithoutConstructor();
foreach ($resultMapper->getFields() as $field) {
if (!$record->hasValue($field->getFieldName())) {
throw new \RuntimeException(sprintf('The record doesn\'t contain the required field "%s"', $field->getFieldName()));
}
$value = null;
if ($field->isEntity()) {
$value = $this->hydrate($record, false, $field->getFieldName(), ClassUtils::getFullClassName($field->getTarget(), $resultMapper->getClassName()));
} else {
$value = $record->get($field->getFieldName());
}
$property = $reflClass->getProperty($field->getFieldName());
$property->setAccessible(true);
$property->setValue($instance, $value);
}
return $instance;
}
/**
* @return string
*/
public function getRelationshipEntityClass()
{
return ClassUtils::getFullClassName($this->relationshipAnnotation->relationshipEntity, $this->className);
}
public function getResultMappingMetadata($class)
{
if (!array_key_exists($class, $this->resultMappers)) {
$this->resultMappers[$class] = $this->annotationDriver->readQueryResult($class);
foreach ($this->resultMappers[$class]->getFields() as $field) {
if ($field->isEntity()) {
$targetFQDN = ClassUtils::getFullClassName($field->getTarget(), $class);
$field->setMetadata($this->getClassMetadataFor($targetFQDN));
}
}
}
return $this->resultMappers[$class];
}
/**
* @return string
*/
public function getRepositoryClass()
{
if (null === $this->customRepository) {
throw new \LogicException(sprintf('There is no custom repository for "%s"', $this->className));
}
return ClassUtils::getFullClassName($this->customRepository, $this->className);
}
