public UUID GetAccessToken(UUID user)
{
QueryFilter filter = new QueryFilter();
filter.andFilters["user"] = user;
List<string> query = GD.Query(new string[1] { "accessToken" }, c_table_accessTokens, filter, null, 0, 1);
return query.Count < 1 ? GetNewAccessToken(user) : UUID.Parse(query[0]);
}