Exemplo n.º 1
0
 /// <summary>
 /// 保存聊天记录【单条即时保存】
 /// </summary>
 /// <param name="message"></param>
 /// <returns></returns>
 public Task <int> SaveMessage(LayIMMessageModel message)
 {
     if (message?.IsVlid == true)
     {
         message.RoomId = RoomIdGenerator.RoomId(message.From, message.To, message.Type);
         return(chatRecordRepository.Add(message));
     }
     return(Task.FromResult(0));
 }
Exemplo n.º 2
0
        /// <summary>
        /// 获取聊天历史记录
        /// </summary>
        /// <param name="userId"></param>
        /// <param name="targetId"></param>
        /// <param name="type"></param>
        /// <param name="fromTimestamp"></param>
        /// <param name="page"></param>
        /// <returns></returns>
        public async Task <IEnumerable <ChatMessageViewModel> > GetChatMessages(string userId, string targetId, string type, long fromTimestamp, int page = 20)
        {
            if (string.IsNullOrEmpty(userId) || string.IsNullOrEmpty(targetId))
            {
                return(LayIMNoData.NoChatMessages);
            }
            if (page <= 0)
            {
                page = 1;
            }

            string roomId      = RoomIdGenerator.RoomId(userId, targetId, type);
            var    chatRecords = await chatRecordRepository.GetList(roomId, page, fromTimestamp);

            if (chatRecords?.Count() > 0)
            {
                var userIds = chatRecords.Select(x => x.FromId);
                var users   = await userRepository.GetUsersByIds(userIds);

                var  result  = new List <ChatMessageViewModel>();
                long uidLong = long.Parse(userId);
                foreach (var chat in chatRecords)
                {
                    var user = users.FirstOrDefault(x => x.id == chat.FromId);
                    result.Add(new ChatMessageViewModel
                    {
                        addtime  = chat.AddTime,
                        from     = chat.FromId,
                        msg      = chat.Msg,
                        self     = chat.FromId == uidLong,
                        avatar   = user?.avatar,
                        username = user?.username
                    });
                }
                return(result.OrderBy(x => x.addtime));
            }
            return(LayIMNoData.NoChatMessages);
        }