public Task HandleAsync(CreateGroupCommand command)
{
var group = new TrainingGroup(command.Day, command.Hour, command.LevelName);
group.SetCoach(command.CoachId);
_dbContext.TrainingGroups.Add(group);
if (_dbContext.SaveChanges() == 0)
{
throw new Exception("Could not add created group");
}
return(Task.CompletedTask);
}
