/// <summary>
/// Returns a list of <see cref="MiniProfiler.Id"/>s that haven't been seen by <paramref name="user"/>.
/// </summary>
/// <param name="user">User identified by the current <see cref="MiniProfiler.Settings.UserProvider"/>.</param>
public override List <Guid> GetUnviewedIds(string user)
{
var query = Query.And(
Query <MiniProfilerPoco> .EQ(p => p.User, user),
Query <MiniProfilerPoco> .EQ(p => p.HasUserViewed, false));
var guids = Profilers.FindAs <MiniProfilerPoco>(query).Select(p => Guid.Parse(p.Id)).ToList();
return(guids);
}