_transformColumn example

    /** * Retrieve row field value * * @param string $columnName The user-specified column name. * @return string The corresponding column value. * @throws Zend_Db_Table_Row_Exception if the $columnName is not a column in the row. */
    public function __get($columnName)
    {
        $columnName = $this->_transformColumn($columnName);
        if (!array_key_exists($columnName, $this->_data)) {
            throw new Zend_Db_Table_Row_Exception("Specified column \"$columnName\" is not in the row");
        }
        return $this->_data[$columnName];
    }

    /** * Set row field value * * @param string $columnName The column key. * @param mixed $value The value for the property. * @return void * @throws Zend_Db_Table_Row_Exception */