code: protected function _fetchData($name)
      {
        $gateway = new \Cora\Gateway($this->getDbAdaptor(), $this->getTableName(), $this->getPrimaryKey());
        return $gateway->fetchData($this->getFieldName($name), $this);
      }
docs: Retrieves a single piece of data for the current model that is stored on this model's primary table.
  
  @return string