public function resetMultilangFields($langId, $tableName)
    {
        $langId = (int) $langId;

        if ($langId === 0) {
            return;
        }

        $sql = [];

        $fields = $this->getMultilangFields($tableName);
        if (is_array($fields) && count($fields) > 0) {
            foreach ($fields as $fieldName) {
                $fieldName = $fieldName . "_" . $langId;

                if ($this->fieldExists($fieldName, $tableName)) {
                    //resetting field value to default
                    $sql[] = "UPDATE {$tableName} SET {$fieldName} = DEFAULT;";
                }
            }
        }

        if (!empty($sql)) {
            $this->executeSql($sql);
        }
    }