public async Task Handle(DeletedPostDomainEvent notification, CancellationToken cancellationToken)
{
_logger.LogInformation("----- Handling DeletedPostDomainEvent: at {AppName} - ({@DomainEvent})", Program.AppName, notification);
var relations = await _userCommentRelationRepository.GetRelationsByCommentIdsAsync(notification.CommentIds);
relations.ForEach(r => _userCommentRelationRepository.Remove(r));
}
public async Task Handle(CommentDeletedDomainEvent notification, CancellationToken cancellationToken)
{
_logger.LogInformation("----- Handling CommentDeletedDomainEvent: at {AppName} - ({@DomainEvent})", Program.AppName, notification);
// 删除“用户-平论”关系
var relations = await _userCommentRelationRepository.GetRelationsByCommentIdsAsync(notification.CommentIds);
relations.ForEach(r => _userCommentRelationRepository.Remove(r));
// 更新帖子的评论数
var post = await _postRepository.GetByIdAsync(notification.PostId);
if (post != null)
{
post.DecreaseCommentCount(notification.CommentIds.Count, _scoreRewardSettings.CommentPost);
}
}
public async Task <bool> Handle(ToggleLikeCommentCommand request, CancellationToken cancellationToken)
{
bool result = false;
var userId = Guid.Parse(_httpContextAccessor.HttpContext.User.FindFirst(ClaimTypes.NameIdentifier)?.Value);
var comment = await _commentRepository.GetByIdAsync(request.CommentId);
if (comment == null)
{
throw new ClientException("操作失败", new List <string> {
$"Comment {request.CommentId} does not exists."
});
}
var userCommentRelation = await _userCommentRelationRepository.GetAsync(userId, request.CommentId);
if (userCommentRelation == null)
{
userCommentRelation = new UserCommentRelation(userId, request.CommentId);
userCommentRelation.Like(comment.PostId);
_userCommentRelationRepository.Add(userCommentRelation);
result = await _userCommentRelationRepository.UnitOfWork.SaveEntitiesAsync(cancellationToken);
if (result)
{
await SendCommentLikedEventAsync(userId, comment);
}
}
else
{
userCommentRelation.UnLike(comment.PostId);
_userCommentRelationRepository.Remove(userCommentRelation);
result = await _userCommentRelationRepository.UnitOfWork.SaveEntitiesAsync(cancellationToken);
if (result)
{
await SendPostUnLikedEventAsync(comment.PostId);
}
}
return(result);
}