/**
* Returns an array containing, for each field, the arary key used for that
* field in self::$_fields.
*
* @access public
* @return array
*/
static function &fieldKeys()
{
if (!self::$_fieldKeys) {
self::$_fieldKeys = array('id' => 'id', 'booking_id' => 'booking_id', 'cancellation_date' => 'cancellation_date', 'cancellation_fee' => 'cancellation_fee', 'additional_fee' => 'additional_fee', 'comment' => 'comment');
}
return self::$_fieldKeys;
}
