Doctrine\Tests\Models\ECommerce\ECommerceCategory::setParent PHP Метод

    private function setParent(ECommerceCategory $parent)
    {
        $this->parent = $parent;
    }

 public function addChild(ECommerceCategory $child)
 {
     $this->children[] = $child;
     $child->setParent($this);
 }