/**
* {@inheritdoc}
*/
public function extract($model)
{
// Strange, but relations are still resolved even when model doesn't
// really exists, so wee need to handle this case.
if (!$model->exists) {
return $this->isMultiple() ? [] : null;
}
$data = parent::extract($model);
return $data ? $this->reference->simplify($data) : null;
}
/**
* {@inheritdoc}
*/
public function extractForColumn($model)
{
return $this->reference->simplify(parent::extract($model));
}