private function fetchLoadValues(): bool
    {
        $row = $this->result()->fetchRow();
        if (false === $row) {
            $this->originalValues = null;
            $this->values = [];
            return false;
        }
        $this->originalValues = $this->setValuesFromDatafields($row);
        $this->values = $this->originalValues;
        return true;
    }