public function initStructureNodeParentsRelatedByParentId($overrideExisting = true)
    {
        if (null !== $this->collStructureNodeParentsRelatedByParentId && !$overrideExisting) {
            return;
        }
        $this->collStructureNodeParentsRelatedByParentId = new ObjectCollection();
        $this->collStructureNodeParentsRelatedByParentId->setModel('\gossi\trixionary\model\StructureNodeParent');
    }