IM/backend/IM_API/Models/Device.cs
nanxun 58bc8b4b5a 前端:
1、优化消息排序逻辑
2、新增加载历史消息
3、修复已知问题
后端:
1、优化消息排序逻辑
2、增加用户信息缓存机制
3、修改日期类型为DateTimeOffset改善时区信息丢失问题
3、修复了已知问题
数据库:
1、新增SequenceId字段用于消息排序
2、新增ClientMsgId字段用于客户端消息回执
2026-02-07 22:37:56 +08:00

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using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations.Schema;
namespace IM_API.Models;
public partial class Device
{
public int Id { get; set; }
/// <summary>
/// 设备所属用户
/// </summary>
public int UserId { get; set; }
/// <summary>
/// 设备类型(
/// 0:Android,1:Ios,2:PC,3Pad,4:未知)
/// </summary>
public sbyte Dtype { get; set; }
/// <summary>
/// 最后一次登录
/// </summary>
[Column(TypeName = "datetimeoffset")]
public DateTimeOffset LastLogin { get; set; }
public virtual User User { get; set; } = null!;
}