/**
* 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::$_fieldKeys = array('id' => 'id', 'booking_id' => 'booking_id', 'item_id' => 'item_id', 'quantity' => 'quantity', 'is_cancelled' => 'is_cancelled', 'is_deleted' => 'is_deleted');
}
return self::$_fieldKeys;
}
