/// <summary> /// 获取指定Id记录 /// </summary> /// <param name="id">主键Id</param> /// <param name="isCache">是否从缓存中读取</param> /// <returns>DataAccess.Model.RefTable</returns> public DataAccess.Model.RefTable GetModel(long id, bool isCache = true) { //判断是否使用缓存 if (CommonBll.IsUseCache() && isCache) { //从缓存中获取List var list = GetList(); if (list == null || list.Count == 0) { return(null); } else { //在List查询指定主键Id的记录 return(list.SingleOrDefault(x => x.Id == id)); } } else { //从数据库中直接读取 var model = RefTable.SingleOrDefault(x => x.Id == id); if (model == null) { return(null); } else { //对查询出来的实体进行转换 return(Transform(model)); } } }
/// <summary> /// 从IIS缓存中获取指定条件的记录 /// </summary> /// <param name="conditionColName">条件列名</param> /// <param name="value">条件值</param> /// <returns>DataAccess.Model.RefTable</returns> public DataAccess.Model.RefTable GetModelForCache(string conditionColName, object value) { try { //从缓存中获取List var list = GetList(); DataAccess.Model.RefTable model = null; Expression <Func <RefTable, bool> > expression = null; //返回指定条件的实体 switch (conditionColName) { case "Taxa_Id": model = list.SingleOrDefault(x => x.Taxa_Id == (long)value); expression = x => x.Taxa_Id == (long)value; break; case "Article_Id": model = list.SingleOrDefault(x => x.Article_Id == (long)value); expression = x => x.Article_Id == (long)value; break; default: return(null); } if (model == null) { //从数据库中读取 var tem = RefTable.SingleOrDefault(expression); if (tem == null) { return(null); } else { //对查询出来的实体进行转换 model = Transform(tem); SetModelForCache(model); return(model); } } else { return(model); } } catch (Exception e) { //记录日志 CommonBll.WriteLog("从IIS缓存中获取RefTable表记录时出现异常", e); return(null); } }
/// <summary> /// 从IIS缓存中获取指定Id记录 /// </summary> /// <param name="id">主键Id</param> /// <returns>DataAccess.Model.RefTable</returns> public DataAccess.Model.RefTable GetModelForCache(long id) { try { //从缓存中读取指定Id记录 var model = GetModelForCache(x => x.Id == id); if (model == null) { //从数据库中读取 var tem = RefTable.SingleOrDefault(x => x.Id == id); if (tem == null) { return(null); } else { //对查询出来的实体进行转换 model = Transform(tem); SetModelForCache(model); return(model); } } else { return(model); } } catch (Exception e) { //记录日志 CommonBll.WriteLog("从IIS缓存中获取RefTable表记录时出现异常", e); return(null); } }