/**
* Find the nodes related to the relationship
*
* @param Property $property
* @param array $info
*
* @return object
*/
protected function getRelationshipNode(Property $property, array $info)
{
$nodeClass = $this->map->getClass($property->getOption('node'));
foreach ($this->entities as $entity) {
if (!$entity instanceof $nodeClass) {
continue;
}
$nodeInfo = $this->entities->getInfo($entity);
if ($nodeInfo['realId'] === $info[$property->getType()]) {
return $entity;
}
}
$query = new Query(sprintf('MATCH (n:%s) WHERE id(n) = {where}.id RETURN n;', $nodeClass));
$query->addVariable('n', $nodeClass);
$query->addParameters('where', ['id' => $info[$property->getType()]]);
return $this->uow->execute($query)->current();
}
/**
* Clean query parameters by converting via the types defined by the properties
*
* @param Query $query
*
* @return array
*/
protected function cleanParameters(Query $query)
{
$params = $query->getParameters();
$references = $query->getReferences();
$variables = $query->getVariables();
foreach ($params as $key => &$values) {
if (!isset($references[$key])) {
continue;
}
foreach ($values as $k => &$value) {
if (!isset($references[$key][$k])) {
continue;
}
list($var, $prop) = explode('.', $references[$key][$k]);
$class = $this->identityMap->getClass($variables[$var]);
$metadata = $this->metadataRegistry->getMetadata($class);
if (!$metadata->hasProperty($prop)) {
continue;
}
$prop = $metadata->getProperty($prop);
if ($prop->isNullable() && $value === null) {
unset($values[$k]);
continue;
}
$value = Types::getType($prop->getType())->convertToDatabaseValue($value, $prop);
}
}
return $params;
}
/**
* Extract variables and parameters from the expression to inject them into the query
*
* @param Query $query
* @param ExpressionInterface $expression
*
* @return void
*/
protected function extractData(Query $query, ExpressionInterface $expression)
{
if ($expression instanceof ParametrableExpressionInterface && $expression->hasParameters()) {
$query->addParameters($expression->getParametersKey(), $expression->getParameters(), $expression->getReferences());
}
if ($expression instanceof VariableAwareInterface && $expression->hasVariable() && $expression->hasAlias()) {
$query->addVariable($expression->getVariable(), $expression->getAlias());
}
}