/// <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(CommentPKEntity entity)
{
if (entity.PKID <= 0)
{
entity.PKID = GetNewID();
}
Dictionary <string, object> dict = new Dictionary <string, object>();
GetParameters(entity, dict);
string strSQL = "insert into CommentPK (" +
"PKID," +
"CommentID," +
"Title," +
"Content," +
"IP," +
"UpdateTime," +
"UserName," +
"Position) " +
"values(" +
"@PKID," +
"@CommentID," +
"@Title," +
"@Content," +
"@IP," +
"@UpdateTime," +
"@UserName," +
"@Position)";
if (await Task.Run(() => _DB.ExeSQLResult(strSQL, dict)))
{
return(DataConverter.CLng(entity.PKID));
}
return(-1);
}
/// <summary>
/// 增加一条记录
/// </summary>
/// <param name="entity">实体模型</param>
/// <returns></returns>
public virtual bool Add(CommentPKEntity entity)
{
if (entity.PKID <= 0)
{
entity.PKID = GetNewID();
}
Dictionary <string, object> dict = new Dictionary <string, object>();
GetParameters(entity, dict);
string strSQL = "insert into CommentPK (" +
"PKID," +
"CommentID," +
"Title," +
"Content," +
"IP," +
"UpdateTime," +
"UserName," +
"Position) " +
"values(" +
"@PKID," +
"@CommentID," +
"@Title," +
"@Content," +
"@IP," +
"@UpdateTime," +
"@UserName," +
"@Position)";
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(CommentPKEntity entity, Dictionary <string, object> dict)
{
dict.Add("PKID", entity.PKID);
dict.Add("CommentID", entity.CommentID);
dict.Add("Title", entity.Title);
dict.Add("Content", entity.Content);
dict.Add("IP", entity.IP);
dict.Add("UpdateTime", entity.UpdateTime);
dict.Add("UserName", entity.UserName);
dict.Add("Position", entity.Position);
}
/// <summary>
/// 通过数据读取器生成实体类
/// </summary>
/// <param name="rdr"></param>
/// <returns></returns>
private static CommentPKEntity GetEntityFromrdr(NullableDataReader rdr)
{
CommentPKEntity info = new CommentPKEntity();
info.PKID = rdr.GetInt32("PKID");
info.CommentID = rdr.GetInt32("CommentID");
info.Title = rdr.GetString("Title");
info.Content = rdr.GetString("Content");
info.IP = rdr.GetString("IP");
info.UpdateTime = rdr.GetNullableDateTime("UpdateTime");
info.UserName = rdr.GetString("UserName");
info.Position = rdr.GetInt32("Position");
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 <CommentPKEntity> GetEntityAsync(string strWhere, Dictionary <string, object> dict = null)
{
CommentPKEntity obj = null;
string strSQL = "select top 1 * from CommentPK 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(CommentPKEntity entity)
{
Dictionary <string, object> dict = new Dictionary <string, object>();
GetParameters(entity, dict);
string strSQL = "Update CommentPK SET " +
"CommentID = @CommentID," +
"Title = @Title," +
"Content = @Content," +
"IP = @IP," +
"UpdateTime = @UpdateTime," +
"UserName = @UserName," +
"Position = @Position" +
" WHERE " +
"PKID = @PKID";
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(CommentPKEntity 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(CommentPKEntity entity, bool IsSave)
{
return(IsSave ? Add(entity) : Update(entity));
}