FieldManager::getReferenceFieldByName

public function getReferenceFieldByName($modelClassName, $name)
{
	$modelClassName = $this->resolveClassName($modelClassName);

	if (
		isset($this->referenceFieldsRepository[$modelClassName]) &&
		!isset($this->referenceFieldsRepository[$modelClassName][$name])
	)
	{
		return null;
	}

	$fields = $this->getReferenceFields($modelClassName);
	if (!$fields || !isset($fields[$name]))
	{
		return null;
	}

	return $this->referenceFieldsRepository[$modelClassName][$name];
}