/// <summary> /// 插入一条记录到表MemFromBD,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="memFromBD">待插入的实体对象</param> public int AddMemFromBD(MemFromBDEntity entity) { string sql = @"insert into MemFromBD( [CompanyName],[CompanyAddress],[CompanyPhone],[Tags],[Province],[City],[PositionLat],[PositionLng],[Title],[UnRegisterId],[MemId])VALUES ( @CompanyName,@CompanyAddress,@CompanyPhone,@Tags,@Province,@City,@PositionLat,@PositionLng,@Title,@UnRegisterId,@MemId); SELECT SCOPE_IDENTITY();" ; DbCommand cmd = db.GetSqlStringCommand(sql); db.AddInParameter(cmd, "@CompanyName", DbType.String, entity.CompanyName); db.AddInParameter(cmd, "@CompanyAddress", DbType.String, entity.CompanyAddress); db.AddInParameter(cmd, "@CompanyPhone", DbType.String, entity.CompanyPhone); db.AddInParameter(cmd, "@Tags", DbType.String, entity.Tags); db.AddInParameter(cmd, "@Province", DbType.String, entity.Province); db.AddInParameter(cmd, "@City", DbType.String, entity.City); db.AddInParameter(cmd, "@PositionLat", DbType.String, entity.PositionLat); db.AddInParameter(cmd, "@PositionLng", DbType.String, entity.PositionLng); db.AddInParameter(cmd, "@Title", DbType.String, entity.Title); db.AddInParameter(cmd, "@UnRegisterId", DbType.Int32, entity.UnRegisterId); db.AddInParameter(cmd, "@MemId", DbType.Int32, entity.MemId); 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 <MemFromBDEntity> GetMemFromBDAll() { string sql = @"SELECT [Id],[CompanyName],[CompanyAddress],[CompanyPhone],[Tags],[Province],[City],[PositionLat],[PositionLng],[Title],[UnRegisterId],[MemId] from dbo.[MemFromBD] WITH(NOLOCK) "; IList <MemFromBDEntity> entityList = new List <MemFromBDEntity>(); DbCommand cmd = db.GetSqlStringCommand(sql); using (IDataReader reader = db.ExecuteReader(cmd)) { while (reader.Read()) { MemFromBDEntity entity = new MemFromBDEntity(); entity.Id = StringUtils.GetDbInt(reader["Id"]); entity.CompanyName = StringUtils.GetDbString(reader["CompanyName"]); entity.CompanyAddress = StringUtils.GetDbString(reader["CompanyAddress"]); entity.CompanyPhone = StringUtils.GetDbString(reader["CompanyPhone"]); entity.Tags = StringUtils.GetDbString(reader["Tags"]); entity.Province = StringUtils.GetDbString(reader["Province"]); entity.City = StringUtils.GetDbString(reader["City"]); entity.PositionLat = StringUtils.GetDbString(reader["PositionLat"]); entity.PositionLng = StringUtils.GetDbString(reader["PositionLng"]); entity.Title = StringUtils.GetDbString(reader["Title"]); entity.UnRegisterId = StringUtils.GetDbInt(reader["UnRegisterId"]); entity.MemId = StringUtils.GetDbInt(reader["MemId"]); entityList.Add(entity); } } return(entityList); }
/// <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(MemFromBDEntity 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.[MemFromBD] WITH(NOLOCK) "; string where = "where "; if (entity.Id == 0) { where = where + " (CompanyName=@CompanyName) "; } else { where = where + " id<>@Id and (CompanyName=@CompanyName) "; } sql = sql + where; DbCommand cmd = db.GetSqlStringCommand(sql); if (entity.Id > 0) { db.AddInParameter(cmd, "@Id", DbType.Int32, entity.Id); } db.AddInParameter(cmd, "@CompanyName", DbType.String, entity.CompanyName); object identity = db.ExecuteScalar(cmd); if (identity == null || identity == DBNull.Value) { return(0); } return(Convert.ToInt32(identity)); }
/// <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 MemFromBDEntity GetMemFromBD(int id) { string sql = @"SELECT [Id],[CompanyName],[CompanyAddress],[CompanyPhone],[Tags],[Province],[City],[PositionLat],[PositionLng],[Title],[UnRegisterId],[MemId] FROM dbo.[MemFromBD] WITH(NOLOCK) WHERE [Id]=@id" ; DbCommand cmd = db.GetSqlStringCommand(sql); db.AddInParameter(cmd, "@Id", DbType.Int32, id); MemFromBDEntity entity = new MemFromBDEntity(); using (IDataReader reader = db.ExecuteReader(cmd)) { if (reader.Read()) { entity.Id = StringUtils.GetDbInt(reader["Id"]); entity.CompanyName = StringUtils.GetDbString(reader["CompanyName"]); entity.CompanyAddress = StringUtils.GetDbString(reader["CompanyAddress"]); entity.CompanyPhone = StringUtils.GetDbString(reader["CompanyPhone"]); entity.Tags = StringUtils.GetDbString(reader["Tags"]); entity.Province = StringUtils.GetDbString(reader["Province"]); entity.City = StringUtils.GetDbString(reader["City"]); entity.PositionLat = StringUtils.GetDbString(reader["PositionLat"]); entity.PositionLng = StringUtils.GetDbString(reader["PositionLng"]); entity.Title = StringUtils.GetDbString(reader["Title"]); entity.UnRegisterId = StringUtils.GetDbInt(reader["UnRegisterId"]); entity.MemId = StringUtils.GetDbInt(reader["MemId"]); } } return(entity); }
/// <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 <MemFromBDEntity> GetMemFromBDList(int pagesize, int pageindex, ref int recordCount) { string sql = @"SELECT [Id],[CompanyName],[CompanyAddress],[CompanyPhone],[Tags],[Province],[City],[PositionLat],[PositionLng],[Title],[UnRegisterId],[MemId] FROM (SELECT ROW_NUMBER() OVER (ORDER BY Id desc) AS ROWNUMBER, [Id],[CompanyName],[CompanyAddress],[CompanyPhone],[Tags],[Province],[City],[PositionLat],[PositionLng],[Title],[UnRegisterId],[MemId] from dbo.[MemFromBD] WITH(NOLOCK) WHERE 1=1 ) as temp where rownumber BETWEEN ((@PageIndex - 1) * @PageSize + 1) AND @PageIndex * @PageSize" ; string sql2 = @"Select count(1) from dbo.[MemFromBD] with (nolock) "; IList <MemFromBDEntity> entityList = new List <MemFromBDEntity>(); 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()) { MemFromBDEntity entity = new MemFromBDEntity(); entity.Id = StringUtils.GetDbInt(reader["Id"]); entity.CompanyName = StringUtils.GetDbString(reader["CompanyName"]); entity.CompanyAddress = StringUtils.GetDbString(reader["CompanyAddress"]); entity.CompanyPhone = StringUtils.GetDbString(reader["CompanyPhone"]); entity.Tags = StringUtils.GetDbString(reader["Tags"]); entity.Province = StringUtils.GetDbString(reader["Province"]); entity.City = StringUtils.GetDbString(reader["City"]); entity.PositionLat = StringUtils.GetDbString(reader["PositionLat"]); entity.PositionLng = StringUtils.GetDbString(reader["PositionLng"]); entity.Title = StringUtils.GetDbString(reader["Title"]); entity.UnRegisterId = StringUtils.GetDbInt(reader["UnRegisterId"]); entity.MemId = StringUtils.GetDbInt(reader["MemId"]); 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MemFromBD,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="memFromBD">要添加的MemFromBD数据实体对象</param> public int AddMemFromBD(MemFromBDEntity memFromBD) { if (memFromBD.Id > 0) { return(UpdateMemFromBD(memFromBD)); } else if (string.IsNullOrEmpty(memFromBD.CompanyName)) { return((int)CommonStatus.ADD_Fail_Empty); } else if (MemFromBDBLL.Instance.IsExist(memFromBD)) { return((int)CommonStatus.ADD_Fail_Exist); } else { return(MemFromBDDA.Instance.AddMemFromBD(memFromBD)); } }
/// <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="memFromBD">待更新的实体对象</param> public int UpdateMemFromBD(MemFromBDEntity entity) { string sql = @" UPDATE dbo.[MemFromBD] SET [CompanyName]=@CompanyName,[CompanyAddress]=@CompanyAddress,[CompanyPhone]=@CompanyPhone,[Tags]=@Tags,[Province]=@Province,[City]=@City,[PositionLat]=@PositionLat,[PositionLng]=@PositionLng,[Title]=@Title,[UnRegisterId]=@UnRegisterId,[MemId]=@MemId WHERE [Id]=@id"; DbCommand cmd = db.GetSqlStringCommand(sql); db.AddInParameter(cmd, "@Id", DbType.Int32, entity.Id); db.AddInParameter(cmd, "@CompanyName", DbType.String, entity.CompanyName); db.AddInParameter(cmd, "@CompanyAddress", DbType.String, entity.CompanyAddress); db.AddInParameter(cmd, "@CompanyPhone", DbType.String, entity.CompanyPhone); db.AddInParameter(cmd, "@Tags", DbType.String, entity.Tags); db.AddInParameter(cmd, "@Province", DbType.String, entity.Province); db.AddInParameter(cmd, "@City", DbType.String, entity.City); db.AddInParameter(cmd, "@PositionLat", DbType.String, entity.PositionLat); db.AddInParameter(cmd, "@PositionLng", DbType.String, entity.PositionLng); db.AddInParameter(cmd, "@Title", DbType.String, entity.Title); db.AddInParameter(cmd, "@UnRegisterId", DbType.Int32, entity.UnRegisterId); db.AddInParameter(cmd, "@MemId", DbType.Int32, entity.MemId); return(db.ExecuteNonQuery(cmd)); }
/// <summary> /// 更新一条MemFromBD记录。 /// 该方法提供给界面等UI层调用 /// </summary> /// <param name="memFromBD">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 UpdateMemFromBD(MemFromBDEntity memFromBD) { return(MemFromBDDA.Instance.UpdateMemFromBD(memFromBD)); }
/// <summary> /// 判断对象是否存在 /// </summary> /// <param name="dicEnum"></param> /// <returns></returns> public bool IsExist(MemFromBDEntity memFromBD) { return(MemFromBDDA.Instance.ExistNum(memFromBD) > 0); }