async Task Write(string phase, object e, Exception ex = null)
{
var s = new XmlSerializer(e.GetType());
var w = new StringWriter();
s.Serialize(w, e);
_context.Entries.Create(new LogEntryData
{
LoggedAt = _clock.Time,
UserId = _authenticator.UserId,
Text = phase + " " + e,
Error = ex?.ToString(),
Xml = w.ToString()
});
await _context.SaveAsync();
}