/**
* Add clause to match the relationship we want to delete
*
* @param IdentityInterface $identity
* @param $object $entity
* @param Query $query
*
* @return Query
*/
private function matchRelationship(IdentityInterface $identity, $entity, Query $query) : Query
{
$meta = $this->metadatas->get(get_class($entity));
$name = $this->name->sprintf(md5($identity->value()));
$this->variables = $this->variables->add((string) $name);
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());
}
/**
* Add the clause to match the target node in case it's node that is not
* persisted via the current query
*
* @param Str $name
* @param RelationshipEdge $meta
* @param mixed $value
* @param Query $query
*
* @return Query
*/
private function matchEdge(Str $name, RelationshipEdge $meta, $value, Query $query) : Query
{
if ($this->variables->contains((string) $name)) {
return $query;
}
$this->variables = $this->variables->add((string) $name);
return $query->match((string) $name)->withProperty($meta->target(), (string) $name->prepend('{')->append('_props}.')->append($meta->target()))->withParameter((string) $name->append('_props'), [$meta->target() => $value]);
}
/**
* 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());
}
