/**
* Add the match clause for a relationship
*
* @param IdentityInterface $identity
* @param object $entity
* @param Relationship $meta
* @param CollectionInterface $changeset
* @param Query $query
*
* @return Query
*/
private function matchRelationship(IdentityInterface $identity, $entity, Relationship $meta, CollectionInterface $changeset, Query $query) : Query
{
$name = $this->name->sprintf(md5($identity->value()));
$this->variables = $this->variables->put($name, $this->buildProperties($changeset, $meta->properties()));
return $query->match()->linkedTo()->through((string) $meta->type(), (string) $name)->withProperty($meta->identity()->property(), (string) $name->prepend('{')->append('_identity}'))->withParameter((string) $name->append('_identity'), $identity->value());
}