Bravo3\Orm\Mappers\Metadata\Relationship::addSortableBy PHP Метод

Add a property to be sortable by

public addSortableBy ( Sortable $property_name )
$property_name	Sortable

    public function addSortableBy(Sortable $property_name)
    {
        $this->sortable_by[] = $property_name;
        return $this;
    }

Relationship