public object Patch(Myclass request)
{

    var result = (MyClass)Get(request);
    if (result != null)
    {
        request.PopulateWithNonDefaultValues(result);
        Db.UpdateNonDefaults(request, r => r.myId == request.myId);
    }
    else
    {
        Db.Save(request);
    }

    return new HttpResult
    {
        StatusCode = HttpStatusCode.Accepted
    };
}