public function transform(&$results)
{
if ($this->field) {
$fields = FluentArray::from($results)->map(Functions::extractExpression($this->field))->flatten()->filterNotBlank()->toArray();
$this->transformer->transform($fields);
} else {
$this->transformer->transform($results);
}
}
private function _fetchRelation($name)
{
$relation = $this->getRelation($name);
$relationFetcher = new RelationFetcher($relation);
$results = array($this);
$relationFetcher->transform($results);
}