public async Task<IActionResult> Add(AddCommentModel model)
{
if (!ModelState.IsValid)
{
string message = this.ModelState.Values.Where(t => t.ValidationState == ModelValidationState.Invalid)
.Select(t => t.Errors.FirstOrDefault())
.FirstOrDefault()
.ErrorMessage;
return this.Notice(message);
}
var result = await this.CommentService.Add(model);
if (result.Success)
{
return this.Redirect(this.GenerateCommentLink(model.TopicID, result.Data));
}
else
{
return this.Notice(result.ErrorMessage);
}
}
public async Task<Result<long>> Add(AddCommentModel model)
{
using (var uw = this.CreateUnitOfWork())
{
var topic = await uw.GetAsync<Topic>(t => t.ID == model.TopicID && !t.IsDelete);
if (topic == null)
{
return Result<long>.ErrorResult("该主题不存在");
}
else if (topic.IsLock)
{
return Result<long>.ErrorResult("该主题已被锁定");
}
if (model.ReplyTo.HasValue)
{
var replyToComment = await uw.GetAsync<Comment>(t => t.ID == model.ReplyTo.Value && !t.IsDelete);
if (replyToComment == null)
{
return Result<long>.ErrorResult("该评论不存在");
}
if (replyToComment.TopicID != model.TopicID)
{
return Result<long>.ErrorResult("错误的请求");
}
}
using (var tran = uw.BeginTransaction())
{
var entity = new Comment
{
Content = model.Content,
CreateDate = DateTime.Now,
CreateUser = this.SecurityManager.CurrentUser.ID,
IsDelete = false,
ReplyID = model.ReplyTo,
TopicID = model.TopicID
};
await uw.InsertAsync(entity);
topic.LastReplyDate = DateTime.Now;
topic.LastReplyUserID = this.SecurityManager.CurrentUser.ID;
await uw.UpdateAsync(topic);
#region 发送回复主题的消息
{
if (this.SecurityManager.CurrentUser.ID != topic.CreateUser)
{
var addMessageModel = new AddMessageModel
{
Comment = entity.ID,
FromUser = this.SecurityManager.CurrentUser.ID,
Topic = topic.ID,
ToUser = topic.CreateUser,
Type = MessageType.Comment
};
await this.MessageService.Add(addMessageModel);
}
}
#endregion
#region 发送@的评论
{
var atUserList = Utility.AtHelper.FetchUsers(model.Content);
if (atUserList.Count > 0)
{
var userList = await uw.QueryAsync<User>(t => atUserList.Contains(t.UserName));
foreach (var user in userList)
{
if (user.ID == this.SecurityManager.CurrentUser.ID || user.ID == topic.CreateUser) //过滤@自己，过滤重复@作者
{
continue;
}
var addMessageModel = new AddMessageModel
{
Comment = entity.ID,
FromUser = this.SecurityManager.CurrentUser.ID,
Topic = topic.ID,
ToUser = user.ID,
Type = MessageType.At
};
await this.MessageService.Add(addMessageModel);
}
}
}
#endregion
tran.Commit();
return Result.SuccessResult(entity.ID);
}
}
}
