/// <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(DownServerEntity entity)
{
if (entity.ServerID <= 0)
{
entity.ServerID = GetNewID();
}
Dictionary <string, object> dict = new Dictionary <string, object>();
GetParameters(entity, dict);
string strSQL = "insert into DownServer (" +
"ServerID," +
"ServerName," +
"ServerUrl," +
"ServerLogo," +
"OrderSort," +
"ShowType) " +
"values(" +
"@ServerID," +
"@ServerName," +
"@ServerUrl," +
"@ServerLogo," +
"@OrderSort," +
"@ShowType)";
if (await Task.Run(() => _DB.ExeSQLResult(strSQL, dict)))
{
return(DataConverter.CLng(entity.ServerID));
}
return(-1);
}
/// <summary>
/// 增加一条记录
/// </summary>
/// <param name="entity">实体模型</param>
/// <returns></returns>
public virtual bool Add(DownServerEntity entity)
{
if (entity.ServerID <= 0)
{
entity.ServerID = GetNewID();
}
Dictionary <string, object> dict = new Dictionary <string, object>();
GetParameters(entity, dict);
string strSQL = "insert into DownServer (" +
"ServerID," +
"ServerName," +
"ServerUrl," +
"ServerLogo," +
"OrderSort," +
"ShowType) " +
"values(" +
"@ServerID," +
"@ServerName," +
"@ServerUrl," +
"@ServerLogo," +
"@OrderSort," +
"@ShowType)";
return(_DB.ExeSQLResult(strSQL, dict));
}
/// <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(DownServerEntity entity, Dictionary <string, object> dict)
{
dict.Add("ServerID", entity.ServerID);
dict.Add("ServerName", entity.ServerName);
dict.Add("ServerUrl", entity.ServerUrl);
dict.Add("ServerLogo", entity.ServerLogo);
dict.Add("OrderSort", entity.OrderSort);
dict.Add("ShowType", entity.ShowType);
}
/// <summary>
/// 通过数据读取器生成实体类
/// </summary>
/// <param name="rdr"></param>
/// <returns></returns>
private static DownServerEntity GetEntityFromrdr(NullableDataReader rdr)
{
DownServerEntity info = new DownServerEntity();
info.ServerID = rdr.GetInt32("ServerID");
info.ServerName = rdr.GetString("ServerName");
info.ServerUrl = rdr.GetString("ServerUrl");
info.ServerLogo = rdr.GetString("ServerLogo");
info.OrderSort = rdr.GetInt32("OrderSort");
info.ShowType = rdr.GetInt32("ShowType");
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 <DownServerEntity> GetEntityAsync(string strWhere, Dictionary <string, object> dict = null)
{
DownServerEntity obj = null;
string strSQL = "select top 1 * from DownServer 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（异步方式）
/// </summary>
/// <param name="entity">实体模型</param>
/// <returns></returns>
public virtual async Task <bool> UpdateAsync(DownServerEntity entity)
{
Dictionary <string, object> dict = new Dictionary <string, object>();
GetParameters(entity, dict);
string strSQL = "Update DownServer SET " +
"ServerName = @ServerName," +
"ServerUrl = @ServerUrl," +
"ServerLogo = @ServerLogo," +
"OrderSort = @OrderSort," +
"ShowType = @ShowType" +
" WHERE " +
"ServerID = @ServerID";
return(await Task.Run(() => _DB.ExeSQLResult(strSQL, dict)));
}
/// <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(DownServerEntity 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(DownServerEntity entity, bool IsSave)
{
return(IsSave ? Add(entity) : Update(entity));
}