XDB::execute('INSERT INTO group_event_participants (eid, uid, item_id, nb, flags, paid)
VALUES ({?}, {?}, {?}, {?}, {?}, {?})
ON DUPLICATE KEY UPDATE nb = VALUES(nb), flags = VALUES(flags), paid = VALUES(paid)',
XDB::execute('INSERT INTO group_event_participants (eid, uid, item_id, nb, flags, paid)
VALUES ({?}, {?}, {?}, {?}, {?}, {?})
ON DUPLICATE KEY UPDATE nb = VALUES(nb), flags = VALUES(flags), paid = VALUES(paid)',