一种历史详细记录表，完整实现：CommonOperateLog 详细记录某用户、某时间、对某表、某主键、某字段的修改（新旧值

一种历史详细记录表，完整实现：CommonOperateLog 详细记录某用户、某时间、对某表、某主键、某字段的修改（新旧值）。 

特别适用于订单历史记录、重要财务记录、审批流记录

表设计：

namespace Business.OperateLog
{
    /// <summary>
    /// 公共系统操作日志记录类
    /// 详细记录某用户、某时间、对某表、某主键、某字段的修改（新旧值）
    /// </summary>
    public class CommonOperateLog
    {
        /// <summary>
        /// 操作表表名
        /// </summary>
        public string TableName { get; private set; }

        /// <summary>
        /// 操作表主键
        /// </summary>
        public long TableKeyId { get; private set; }

        /// <summary>
        /// 操作类型
        /// </summary>
        public OperateType Type { get; private set; }

        /// <summary>
        /// 备注
        /// </summary>
        public string Remark { get;private set; }

        /// <summary>
        /// 操作者id
        /// </summary>
        public long UserId { get; private set; }

        /// <summary>
        /// 操作者姓名
        /// </summary>
        public string UserName { get; private set; }

        /// <summary>
        /// 字段新旧值修改详细日志
        /// </summary>
        public List<FieldUpdateLogContent> FieldUpdateLogContents { get; private set; }


        /// <summary>
        /// 构造
        /// </summary>
        public CommonOperateLog(string tableName, long tableKeyId, OperateType type, string remark = "", long userId = 0, string userName = "")
        {
            TableName = tableName;
            TableKeyId = tableKeyId;
            Type = type;
            Remark = remark ?? string.Empty;
            UserId = userId;
            UserName = userName ?? string.Empty;
            FieldUpdateLogContents = new List<FieldUpdateLogContent>();
        }

        /// <summary>
        /// 添加字段新旧值修改详细日志
        /// </summary>
        public List<FieldUpdateLogContent> AddLog(FieldUpdateLogContent log)
        {
            FieldUpdateLogContents.Add(log);
            return FieldUpdateLogContents;
        }

        /// <summary>
        /// 保存修改历史
        /// </summary>
        public void SaveOperationLog()
        {
            ThreadPool.QueueUserWorkItem(t =>   //使用线程异步保存，加速执行速度
            {
                //插入操作日志表
                var model = new OperationLogModel
                {
                    TableName = TableName,
                    TableKeyId = TableKeyId,
                    Type = Type.GetHashCode(),
                    Content = JsonConvert.SerializeObject(FieldUpdateLogContents).AbbreviateString(1990),
                    Creator = CommonHelper.GetUserOperator(UserId.ToString(),UserName),
                    CreateTime = DateTime.Now,
                    IsDel = BooleanEnum.No.GetHashCode(),
                    Remark = Remark,
                };
                if (!CommonDAL.Add(model))
                    LogFactory.GetLogger("SkyLog").Error(new Exception("保存详细修改历史失败"), "保存详细修改历史失败", "SaveOperationLog", TableName,
                        null, "", "", TableKeyId.ToString());
            });
        }
    }


    /// <summary>
    /// 字段新旧值修改详细日志
    /// </summary>
    public class FieldUpdateLogContent
    {
        /// <summary>
        /// 字段英文名，一般就是表的列名
        /// </summary>
        public string EnName { get; private set; }

        /// <summary>
        /// 字段中文名，一般就是表的中文描述名
        /// </summary>
        public string CNName { get; private set; }

        /// <summary>
        /// 旧值
        /// </summary>
        public string OldValue { get; private set; }

        /// <summary>
        /// 新值
        /// </summary>
        public string NewValue { get; private set; }


        /// <summary>
        /// 构造
        /// </summary>
        public FieldUpdateLogContent(string enName,string cnName,string oldValue,string newValue)
        {
            EnName = enName;
            CNName = cnName;
            OldValue = oldValue;
            NewValue = newValue;
        }
    }


    /// <summary>
    /// 操作类型
    /// </summary>
    public enum OperateType
    {
        [Description("新增")]
        Add = 0,

        [Description("更新")]
        Update = 1,

        [Description("逻辑删除")]
        Remove = 2,
    }
}

表设计字段：

var model = new OperationLogModel
{
TableName = TableName,
TableKeyId = TableKeyId,
Type = Type.GetHashCode(),
Content = JsonConvert.SerializeObject(FieldUpdateLogContents).AbbreviateString(1990),
Creator = CommonHelper.GetUserOperator(UserId.ToString(),UserName),
CreateTime = DateTime.Now,
IsDel = BooleanEnum.No.GetHashCode(),
Remark = Remark,
};

调用：

 public ContentResult OperateLog()
        {
            var operateLog = new CommonOperateLog("TableName", 1, OperateType.Add, "remark", CurrentUser.UserId, CurrentUser.UserName);
            operateLog.AddLog(new FieldUpdateLogContent("Name", "学生姓名", "钮林华", "钮林华22"));
            operateLog.AddLog(new FieldUpdateLogContent("CityId", "城市id", "101", "102"));
            operateLog.SaveOperationLog();
            return new ContentResult { Content = operateLog.ToJson() };
        }