public function deleteListRow($row_id)
 {
     ProductAttributes::whereRaw('id = ?', array($row_id))->delete();
     # Delete all attribute options related to the deleted attribute
     $this->deleteListRowChild($row_id);
     return true;
 }
 public function isAttributeExists($attribute_id)
 {
     $attribute_count = ProductAttributes::whereRaw('id = ?', array($attribute_id))->count();
     return $attribute_count;
 }