public void Handle(TrainingDeleted @event)
 {
     using (var context = new ProjectionContext(ConnectionString.Get()))
     {
         context.Database.ExecuteSqlCommand($"DELETE FROM dbo.SESSION WHERE TrainerId = '{@event.AggregateId}'");
     }
 }
 public void Handle(TrainingDeleted @event)
 {
     DisableTraining(@event.AggregateId);
 }