Bolt\Storage\Field\Collection\FieldCollection::setGrouping PHP Метод

    public function setGrouping($grouping)
    {
        $this->grouping = $grouping;
    }

 /**
  * @param array $ids
  * @param int   $grouping
  */
 public function addFromReferences(array $ids, $grouping = 0)
 {
     $collection = new FieldCollection($ids, $this->em);
     $collection->setGrouping($grouping);
     $this->add($collection);
 }