private function deleteThesaurusRelations(\Magento\Framework\Model\AbstractModel $object)
{
$deleteCondition = [ThesaurusInterface::THESAURUS_ID . " = ?" => $object->getThesaurusId()];
$this->getConnection()->delete($this->getTable(ThesaurusInterface::EXPANSION_TABLE_NAME), $deleteCondition);
return $this;
}