/// <summary> /// 根据主键值读取记录。如果数据库不存在这条数据将返回null /// </summary> /// <param name="db">数据库操作对象</param> /// <param name="columns">需要返回的列,不提供任何列名时默认将返回所有列</param> public StatisticDataEntity GetStatisticData(int id) { string sql = @"SELECT [Id],[SellerId],[TotalNum],[PcNum],[MobileNum],[SDataType],[CreateDate] FROM dbo.[StatisticData] WITH(NOLOCK) WHERE [Id]=@id" ; DbCommand cmd = db.GetSqlStringCommand(sql); db.AddInParameter(cmd, "@Id", DbType.Int32, id); StatisticDataEntity entity = new StatisticDataEntity(); using (IDataReader reader = db.ExecuteReader(cmd)) { if (reader.Read()) { entity.Id = StringUtils.GetDbInt(reader["Id"]); entity.SellerId = StringUtils.GetDbInt(reader["SellerId"]); entity.TotalNum = StringUtils.GetDbInt(reader["TotalNum"]); entity.PcNum = StringUtils.GetDbInt(reader["PcNum"]); entity.MobileNum = StringUtils.GetDbInt(reader["MobileNum"]); entity.SDataType = StringUtils.GetDbInt(reader["SDataType"]); entity.CreateDate = StringUtils.GetDbString(reader["CreateDate"]); } } return(entity); }
/// <summary> /// 判断当前节点是否已存在相同的 /// </summary> /// <param name="entity"></param> /// <returns></returns> public int ExistNum(StatisticDataEntity entity) { ///id=0,判断总数,ID>0判断除自己之外的总数 string sql = @"Select count(1) from dbo.[StatisticData] WITH(NOLOCK) "; string where = "where "; if (entity.Id == 0) { } else { } sql = sql + where; DbCommand cmd = db.GetSqlStringCommand(sql); if (entity.Id > 0) { db.AddInParameter(cmd, "@Id", DbType.Int32, entity.Id); } object identity = db.ExecuteScalar(cmd); if (identity == null || identity == DBNull.Value) { return(0); } return(Convert.ToInt32(identity)); }
/// <summary> /// 根据主键值更新记录的全部字段(注意:该方法不会对自增字段、timestamp类型字段以及主键字段更新!如果要更新主键字段,请使用Update方法)。 /// 如果数据库有数据被更新了则返回True,否则返回False /// </summary> /// <param name="db">数据库操作对象</param> /// <param name="statisticData">待更新的实体对象</param> public int UpdateStatisticData(StatisticDataEntity entity) { string sql = @" UPDATE dbo.[StatisticData] SET [SellerId]=@SellerId,[TotalNum]=@TotalNum,[PcNum]=@PcNum,[MobileNum]=@MobileNum,[SDataType]=@SDataType,[CreateDate]=@CreateDate WHERE [Id]=@id"; DbCommand cmd = db.GetSqlStringCommand(sql); db.AddInParameter(cmd, "@Id", DbType.Int32, entity.Id); db.AddInParameter(cmd, "@SellerId", DbType.Int32, entity.SellerId); db.AddInParameter(cmd, "@TotalNum", DbType.Int32, entity.TotalNum); db.AddInParameter(cmd, "@PcNum", DbType.Int32, entity.PcNum); db.AddInParameter(cmd, "@MobileNum", DbType.Int32, entity.MobileNum); db.AddInParameter(cmd, "@SDataType", DbType.Int32, entity.SDataType); db.AddInParameter(cmd, "@CreateDate", DbType.Object, entity.CreateDate); return(db.ExecuteNonQuery(cmd)); }
/// <summary> /// 插入一条记录到表StatisticData,如果表中存在自增字段,则返回值为新记录的自增字段值,否则返回0。 /// 该方法提供给界面等UI层调用 /// </summary> /// <param name="statisticData">要添加的StatisticData数据实体对象</param> public int AddStatisticData(StatisticDataEntity statisticData) { if (statisticData.Id > 0) { return(UpdateStatisticData(statisticData)); } else if (StatisticDataBLL.Instance.IsExist(statisticData)) { return((int)CommonStatus.ADD_Fail_Exist); } else { return(StatisticDataDA.Instance.AddStatisticData(statisticData)); } }
/// <summary> /// 读取记录列表。 /// </summary> /// <param name="db">数据库操作对象</param> /// <param name="columns">需要返回的列,不提供任何列名时默认将返回所有列</param> public IList <StatisticDataEntity> GetStatisticDataList(int pagesize, int pageindex, ref int recordCount) { string sql = @"SELECT [Id],[SellerId],[TotalNum],[PcNum],[MobileNum],[SDataType],[CreateDate] FROM (SELECT ROW_NUMBER() OVER (ORDER BY Id desc) AS ROWNUMBER, [Id],[SellerId],[TotalNum],[PcNum],[MobileNum],[SDataType],[CreateDate] from dbo.[StatisticData] WITH(NOLOCK) WHERE 1=1 ) as temp where rownumber BETWEEN ((@PageIndex - 1) * @PageSize + 1) AND @PageIndex * @PageSize" ; string sql2 = @"Select count(1) from dbo.[StatisticData] with (nolock) "; IList <StatisticDataEntity> entityList = new List <StatisticDataEntity>(); DbCommand cmd = db.GetSqlStringCommand(sql); db.AddInParameter(cmd, "@PageIndex", DbType.Int32, pageindex); db.AddInParameter(cmd, "@PageSize", DbType.Int32, pagesize); using (IDataReader reader = db.ExecuteReader(cmd)) { while (reader.Read()) { StatisticDataEntity entity = new StatisticDataEntity(); entity.Id = StringUtils.GetDbInt(reader["Id"]); entity.SellerId = StringUtils.GetDbInt(reader["SellerId"]); entity.TotalNum = StringUtils.GetDbInt(reader["TotalNum"]); entity.PcNum = StringUtils.GetDbInt(reader["PcNum"]); entity.MobileNum = StringUtils.GetDbInt(reader["MobileNum"]); entity.SDataType = StringUtils.GetDbInt(reader["SDataType"]); entity.CreateDate = StringUtils.GetDbString(reader["CreateDate"]); entityList.Add(entity); } } cmd = db.GetSqlStringCommand(sql2); using (IDataReader reader = db.ExecuteReader(cmd)) { if (reader.Read()) { recordCount = StringUtils.GetDbInt(reader[0]); } else { recordCount = 0; } } return(entityList); }
/// <summary> /// 插入一条记录到表StatisticData,如果表中存在自增字段,则返回值为新记录的自增字段值,否则返回0 /// </summary> /// <param name="db">数据库操作对象</param> /// <param name="statisticData">待插入的实体对象</param> public int AddStatisticData(StatisticDataEntity entity) { string sql = @"insert into StatisticData( [SellerId],[TotalNum],[PcNum],[MobileNum],[SDataType],[CreateDate])VALUES ( @SellerId,@TotalNum,@PcNum,@MobileNum,@SDataType,@CreateDate); SELECT SCOPE_IDENTITY();" ; DbCommand cmd = db.GetSqlStringCommand(sql); db.AddInParameter(cmd, "@SellerId", DbType.Int32, entity.SellerId); db.AddInParameter(cmd, "@TotalNum", DbType.Int32, entity.TotalNum); db.AddInParameter(cmd, "@PcNum", DbType.Int32, entity.PcNum); db.AddInParameter(cmd, "@MobileNum", DbType.Int32, entity.MobileNum); db.AddInParameter(cmd, "@SDataType", DbType.Int32, entity.SDataType); db.AddInParameter(cmd, "@CreateDate", DbType.Object, entity.CreateDate); object identity = db.ExecuteScalar(cmd); if (identity == null || identity == DBNull.Value) { return(0); } return(Convert.ToInt32(identity)); }
/// <summary> /// 读取记录列表。 /// </summary> /// <param name="db">数据库操作对象</param> /// <param name="columns">需要返回的列,不提供任何列名时默认将返回所有列</param> public IList <StatisticDataEntity> GetStatisticDataAll() { string sql = @"SELECT [Id],[SellerId],[TotalNum],[PcNum],[MobileNum],[SDataType],[CreateDate] from dbo.[StatisticData] WITH(NOLOCK) "; IList <StatisticDataEntity> entityList = new List <StatisticDataEntity>(); DbCommand cmd = db.GetSqlStringCommand(sql); using (IDataReader reader = db.ExecuteReader(cmd)) { while (reader.Read()) { StatisticDataEntity entity = new StatisticDataEntity(); entity.Id = StringUtils.GetDbInt(reader["Id"]); entity.SellerId = StringUtils.GetDbInt(reader["SellerId"]); entity.TotalNum = StringUtils.GetDbInt(reader["TotalNum"]); entity.PcNum = StringUtils.GetDbInt(reader["PcNum"]); entity.MobileNum = StringUtils.GetDbInt(reader["MobileNum"]); entity.SDataType = StringUtils.GetDbInt(reader["SDataType"]); entity.CreateDate = StringUtils.GetDbString(reader["CreateDate"]); entityList.Add(entity); } } return(entityList); }
/// <summary> /// 更新一条StatisticData记录。 /// 该方法提供给界面等UI层调用 /// </summary> /// <param name="statisticData">待更新的实体对象</param> /// <param name="columns">要更新的列名,不提供任何列名时默认将更新主键之外的所有列</param> public int UpdateStatisticData(StatisticDataEntity statisticData) { return(StatisticDataDA.Instance.UpdateStatisticData(statisticData)); }
/// <summary> /// 判断对象是否存在 /// </summary> /// <param name="dicEnum"></param> /// <returns></returns> public bool IsExist(StatisticDataEntity statisticData) { return(StatisticDataDA.Instance.ExistNum(statisticData) > 0); }