/// <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 MemBillComEntity GetMemBillCom(int id) { string sql = @"SELECT [Id],[MemId],[Title],[CreateTime],[Sort],[IsDefault] FROM dbo.[MemBillCom] WITH(NOLOCK) WHERE [Id]=@id" ; DbCommand cmd = db.GetSqlStringCommand(sql); db.AddInParameter(cmd, "@Id", DbType.Int32, id); MemBillComEntity entity = new MemBillComEntity(); using (IDataReader reader = db.ExecuteReader(cmd)) { if (reader.Read()) { entity.Id = StringUtils.GetDbInt(reader["Id"]); entity.MemId = StringUtils.GetDbInt(reader["MemId"]); entity.Title = StringUtils.GetDbString(reader["Title"]); entity.CreateTime = StringUtils.GetDbDateTime(reader["CreateTime"]); entity.Sort = StringUtils.GetDbInt(reader["Sort"]); entity.IsDefault = StringUtils.GetDbInt(reader["IsDefault"]); } } return(entity); }
/// <summary> /// 更新一条MemBillCom记录。 /// 该方法提供给界面等UI层调用 /// </summary> /// <param name="memBillCom">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 UpdateMemBillCom(MemBillComEntity memBillCom) { if (memBillCom.Id == 0) { return(AddMemBillCom(memBillCom)); } return(MemBillComDA.Instance.UpdateMemBillCom(memBillCom)); }
/// <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 <MemBillComEntity> GetMemBillComList(int pagesize, int pageindex, ref int recordCount, int memid) { //只取有效的 string where = " where Status=1 "; if (memid > 0) { where += " and MemId=@MemId"; } string sql = @"SELECT [Id],[MemId],[Title],[CreateTime],[Sort],[IsDefault] FROM (SELECT ROW_NUMBER() OVER (ORDER BY Id desc) AS ROWNUMBER, [Id],[MemId],[Title],[CreateTime],[Sort],[IsDefault] from dbo.[MemBillCom] WITH(NOLOCK) " + where + @") as temp where rownumber BETWEEN ((@PageIndex - 1) * @PageSize + 1) AND @PageIndex * @PageSize" ; string sql2 = @"Select count(1) from dbo.[MemBillCom] with (nolock) " + where; IList <MemBillComEntity> entityList = new List <MemBillComEntity>(); DbCommand cmd = db.GetSqlStringCommand(sql); db.AddInParameter(cmd, "@PageIndex", DbType.Int32, pageindex); db.AddInParameter(cmd, "@PageSize", DbType.Int32, pagesize); if (memid > 0) { db.AddInParameter(cmd, "@MemId", DbType.Int32, memid); } using (IDataReader reader = db.ExecuteReader(cmd)) { while (reader.Read()) { MemBillComEntity entity = new MemBillComEntity(); entity.Id = StringUtils.GetDbInt(reader["Id"]); entity.MemId = StringUtils.GetDbInt(reader["MemId"]); entity.Title = StringUtils.GetDbString(reader["Title"]); entity.CreateTime = StringUtils.GetDbDateTime(reader["CreateTime"]); entity.Sort = StringUtils.GetDbInt(reader["Sort"]); entity.IsDefault = StringUtils.GetDbInt(reader["IsDefault"]); entityList.Add(entity); } } cmd = db.GetSqlStringCommand(sql2); if (memid > 0) { db.AddInParameter(cmd, "@MemId", DbType.Int32, memid); } using (IDataReader reader = db.ExecuteReader(cmd)) { if (reader.Read()) { recordCount = StringUtils.GetDbInt(reader[0]); } else { recordCount = 0; } } return(entityList); }
/// <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="memBillCom">待更新的实体对象</param> public int UpdateMemBillCom(MemBillComEntity entity) { string sql = @"update MemBillCom set IsDefault=0 where MemId=@MemId UPDATE dbo.[MemBillCom] SET [Title]=@Title, UpdateTime=@UpdateTime,[IsDefault]=@IsDefault WHERE [Id]=@Id and [MemId]=@MemId"; DbCommand cmd = db.GetSqlStringCommand(sql); db.AddInParameter(cmd, "@Id", DbType.Int32, entity.Id); db.AddInParameter(cmd, "@MemId", DbType.Int32, entity.MemId); db.AddInParameter(cmd, "@IsDefault", DbType.Int32, entity.IsDefault); db.AddInParameter(cmd, "@Title", DbType.String, entity.Title); db.AddInParameter(cmd, "@UpdateTime", DbType.DateTime, DateTime.Now.ToString()); return(db.ExecuteNonQuery(cmd)); }
/// <summary> /// 插入一条记录到表MemBillCom,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="memBillCom">要添加的MemBillCom数据实体对象</param> public int AddMemBillCom(MemBillComEntity memBillCom) { if (memBillCom.Id > 0) { return(UpdateMemBillCom(memBillCom)); } else if (MemBillComBLL.Instance.IsExist(memBillCom)) { return((int)CommonStatus.ADD_Fail_Exist); } else { return(MemBillComDA.Instance.AddMemBillCom(memBillCom)); } }
/// <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(MemBillComEntity 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.[MemBillCom] WITH(NOLOCK) "; string where = "where Title=@Title"; sql = sql + where; DbCommand cmd = db.GetSqlStringCommand(sql); db.AddInParameter(cmd, "@Title", DbType.String, entity.Title); 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 <MemBillComEntity> GetMemBillComAll() { string sql = @"SELECT [Id],[MemId],[Title],[CreateTime],[Sort],[IsDefault] from dbo.[MemBillCom] WITH(NOLOCK) "; IList <MemBillComEntity> entityList = new List <MemBillComEntity>(); DbCommand cmd = db.GetSqlStringCommand(sql); using (IDataReader reader = db.ExecuteReader(cmd)) { while (reader.Read()) { MemBillComEntity entity = new MemBillComEntity(); entity.Id = StringUtils.GetDbInt(reader["Id"]); entity.MemId = StringUtils.GetDbInt(reader["MemId"]); entity.Title = StringUtils.GetDbString(reader["Title"]); entity.CreateTime = StringUtils.GetDbDateTime(reader["CreateTime"]); entity.Sort = StringUtils.GetDbInt(reader["Sort"]); entity.IsDefault = StringUtils.GetDbInt(reader["IsDefault"]); entityList.Add(entity); } } return(entityList); }
/// <summary> /// 插入一条记录到表MemBillCom,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="memBillCom">待插入的实体对象</param> public int AddMemBillCom(MemBillComEntity entity) { string sql = @" update MemBillCom set IsDefault=0 where MemId=@MemId insert into MemBillCom( [MemId],[Title],[CreateTime],[Sort],[IsDefault],Status)VALUES ( @MemId,@Title,@CreateTime,@Sort,@IsDefault,@Status); SELECT SCOPE_IDENTITY();" ; DbCommand cmd = db.GetSqlStringCommand(sql); db.AddInParameter(cmd, "@MemId", DbType.Int32, entity.MemId); db.AddInParameter(cmd, "@Title", DbType.String, entity.Title); db.AddInParameter(cmd, "@CreateTime", DbType.DateTime, DateTime.Now.ToString()); db.AddInParameter(cmd, "@Sort", DbType.Int32, entity.Sort); db.AddInParameter(cmd, "@Status", DbType.Int32, 1); db.AddInParameter(cmd, "@IsDefault", DbType.Int32, entity.IsDefault); object identity = db.ExecuteScalar(cmd); if (identity == null || identity == DBNull.Value) { return(0); } return(Convert.ToInt32(identity)); }
/// <summary> /// 判断对象是否存在 /// </summary> /// <param name="dicEnum"></param> /// <returns></returns> public bool IsExist(MemBillComEntity memBillCom) { return(MemBillComDA.Instance.ExistNum(memBillCom) > 0); }