public async Task <CircleViewModel> Handle(CreateCircleCommand request, CancellationToken cancellationToken)
{
var circle = await _circleRepository.GetCircleByNameAsync(request.Name);
if (circle != null)
{
throw new ClientException("圈子名已存在");
}
var myId = Guid.Parse(_httpContextAccessor.HttpContext.User.FindFirst(ClaimTypes.NameIdentifier).Value);
var circleCount = await _circleRepository.GetUserCircleCount(myId);
if (circleCount >= 5)
{
throw new ClientException("圈子数量已达上限");
}
circle = new Domain.AggregatesModel.CircleAggregate.Circle(request.Name, request.Description, request.VerifyJoin, request.BackgroundImage, myId);
_circleRepository.Add(circle);
if (await _circleRepository.UnitOfWork.SaveEntitiesAsync(cancellationToken))
{
return(await _circleQueries.GetCircleAsync(circle.Id));
}
throw new ApplicationException("操作失败");
}
// 发送用户已入圈事件
public static async Task SendJoinedCircleEventAsync(Domain.AggregatesModel.CircleAggregate.Circle circle, Guid joinedUserId,
IMessageSession messageSession, ILogger logger)
{
var @event = new JoinedCircleEvent
{
JoinedUserId = joinedUserId,
CircleOwnerId = circle.OwnerId,
CircleId = circle.Id,
CircleName = circle.Name
};
await messageSession.Publish(@event);
logger.LogInformation("----- Published JoinedCircleEvent: {IntegrationEventId} from {AppName} - ({@IntegrationEvent})", @event.Id, Program.AppName, @event);
}
private async Task SendCircleOwnerChangedEventAsync(Domain.AggregatesModel.CircleAggregate.Circle circle, Guid operatorId)
{
var @event = new CircleOwnerChangedEvent
{
OldOwnerId = operatorId,
NewOwnerId = circle.OwnerId,
CircleId = circle.Id,
CircleName = circle.Name
};
var messageSession = (IMessageSession)_serviceProvider.GetService(typeof(IMessageSession));
await messageSession.Publish(@event);
_logger.LogInformation("----- Published CircleOwnerChangedEvent: {IntegrationEventId} from {AppName} - ({@IntegrationEvent})", @event.Id, Program.AppName, @event);
}
// 发送用户申请入圈事件
private async Task SendAppliedJoinCircleEventAsync(Guid myId, Domain.AggregatesModel.CircleAggregate.Circle circle, string applyDescription)
{
var @event = new AppliedJoinCircleEvent
{
ApplyUserId = myId,
CircleOwnerId = circle.OwnerId,
CircleId = circle.Id,
CircleName = circle.Name,
ApplyDescription = applyDescription
};
await _messageSession.Publish(@event);
_logger.LogInformation("----- Published AppliedJoinCircleEvent: {IntegrationEventId} from {AppName} - ({@IntegrationEvent})", @event.Id, Program.AppName, @event);
}
