/// <summary> /// 通过数据读取器生成实体类 /// </summary> /// <param name="rdr"></param> /// <returns></returns> private static MailItemEntity GetEntityFromrdr(NullableDataReader rdr) { MailItemEntity info = new MailItemEntity(); info.MailListId = rdr.GetInt32("MailListId"); info.SubscriptionItemId = rdr.GetInt32("SubscriptionItemId"); return(info); }
/// <summary> /// 获取实体(异步方式) /// </summary> /// <param name="strWhere">参数化查询条件(例如: and Name = @Name )</param> /// <param name="dict">参数的名/值集合</param> /// <returns></returns> public virtual async Task <MailItemEntity> GetEntityAsync(string strWhere, Dictionary <string, object> dict = null) { MailItemEntity obj = null; string strSQL = "select top 1 * from MailItem where 1=1 " + strWhere; using (NullableDataReader reader = await Task.Run(() => _DB.GetDataReader(strSQL, dict))) { if (reader.Read()) { obj = GetEntityFromrdr(reader); } } return(obj); }
/// <summary> /// 更新一条记录 /// </summary> /// <param name="entity">实体模型</param> /// <returns></returns> public virtual bool Update(MailItemEntity entity) { Dictionary <string, object> dict = new Dictionary <string, object>(); GetParameters(entity, dict); string strSQL = "Update MailItem SET " + " WHERE " + "MailListId = @MailListId" + " AND " + "SubscriptionItemId = @SubscriptionItemId"; return(_DB.ExeSQLResult(strSQL, dict)); }
/// <summary> /// 更新一条记录(异步方式) /// </summary> /// <param name="entity">实体模型</param> /// <returns></returns> public virtual async Task <bool> UpdateAsync(MailItemEntity entity) { Dictionary <string, object> dict = new Dictionary <string, object>(); GetParameters(entity, dict); string strSQL = "Update MailItem SET " + " WHERE " + "MailListId = @MailListId" + " AND " + "SubscriptionItemId = @SubscriptionItemId"; return(await Task.Run(() => _DB.ExeSQLResult(strSQL, dict))); }
/// <summary> /// 增加一条记录(异步方式) /// </summary> /// <param name="entity">实体模型</param> /// <returns></returns> public virtual async Task <bool> AddAsync(MailItemEntity entity) { Dictionary <string, object> dict = new Dictionary <string, object>(); GetParameters(entity, dict); string strSQL = "insert into MailItem (" + "MailListId," + "SubscriptionItemId) " + "values(" + "@MailListId," + "@SubscriptionItemId)"; return(await Task.Run(() => _DB.ExeSQLResult(strSQL, dict))); }
/// <summary> /// 增加一条记录 /// </summary> /// <param name="entity">实体模型</param> /// <returns></returns> public virtual bool Add(MailItemEntity entity) { Dictionary <string, object> dict = new Dictionary <string, object>(); GetParameters(entity, dict); string strSQL = "insert into MailItem (" + "MailListId," + "SubscriptionItemId) " + "values(" + "@MailListId," + "@SubscriptionItemId)"; return(_DB.ExeSQLResult(strSQL, dict)); }
/// <summary> /// 增加一条记录,返回新的ID号。需要有一个单一主键,并且开启有标识符属性(异步方式) /// </summary> /// <param name="entity">实体模型</param> /// <returns></returns> public virtual async Task <int> InsertAsync(MailItemEntity entity) { Dictionary <string, object> dict = new Dictionary <string, object>(); GetParameters(entity, dict); string strSQL = "insert into MailItem (" + "MailListId," + "SubscriptionItemId) " + "values(" + "@MailListId," + "@SubscriptionItemId)"; if (await Task.Run(() => _DB.ExeSQLResult(strSQL, dict))) { return(DataConverter.CLng(entity.MailListId)); } return(-1); }
/// <summary> /// 把实体类转换成键/值对集合 /// </summary> /// <param name="entity"></param> /// <param name="dict"></param> private static void GetParameters(MailItemEntity entity, Dictionary <string, object> dict) { dict.Add("MailListId", entity.MailListId); dict.Add("SubscriptionItemId", entity.SubscriptionItemId); }
/// <summary> /// 增加或更新一条记录(异步方式) /// </summary> /// <param name="entity">实体模型</param> /// <param name="IsSave">是否增加</param> /// <returns></returns> public virtual async Task <bool> AddOrUpdateAsync(MailItemEntity entity, bool IsSave) { return(IsSave ? await AddAsync(entity) : await UpdateAsync(entity)); }
/// <summary> /// 增加或更新一条记录 /// </summary> /// <param name="entity">实体模型</param> /// <param name="IsSave">是否增加</param> /// <returns></returns> public virtual bool AddOrUpdate(MailItemEntity entity, bool IsSave) { return(IsSave ? Add(entity) : Update(entity)); }