/// <summary>
/// 增加一条数据
/// </summary>
public int Add(dbamet.Model.DownloadHistory model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into DownloadHistory(");
strSql.Append("customId,resourceName,downloadTime,resourceId)");
strSql.Append(" values (");
strSql.Append("@customId,@resourceName,@downloadTime,@resourceId)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@customId", SqlDbType.Char, 8),
new SqlParameter("@resourceName", SqlDbType.VarChar, 50),
new SqlParameter("@downloadTime", SqlDbType.DateTime),
new SqlParameter("@resourceId", SqlDbType.Int, 4)
};
parameters[0].Value = model.customId;
parameters[1].Value = model.resourceName;
parameters[2].Value = model.downloadTime;
parameters[3].Value = model.resourceId;
object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(dbamet.Model.DownloadHistory model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update DownloadHistory set ");
strSql.Append("customId=@customId,");
strSql.Append("resourceName=@resourceName,");
strSql.Append("downloadTime=@downloadTime,");
strSql.Append("resourceId=@resourceId");
strSql.Append(" where id=@id");
SqlParameter[] parameters =
{
new SqlParameter("@customId", SqlDbType.Char, 8),
new SqlParameter("@resourceName", SqlDbType.VarChar, 50),
new SqlParameter("@downloadTime", SqlDbType.DateTime),
new SqlParameter("@resourceId", SqlDbType.Int, 4),
new SqlParameter("@id", SqlDbType.Int, 4)
};
parameters[0].Value = model.customId;
parameters[1].Value = model.resourceName;
parameters[2].Value = model.downloadTime;
parameters[3].Value = model.resourceId;
parameters[4].Value = model.id;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public dbamet.Model.DownloadHistory GetModel(int id)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 id,customId,resourceName,downloadTime,resourceId from DownloadHistory ");
strSql.Append(" where id=@id");
SqlParameter[] parameters =
{
new SqlParameter("@id", SqlDbType.Int, 4)
};
parameters[0].Value = id;
dbamet.Model.DownloadHistory model = new dbamet.Model.DownloadHistory();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
if (ds.Tables[0].Rows[0]["id"] != null && ds.Tables[0].Rows[0]["id"].ToString() != "")
{
model.id = int.Parse(ds.Tables[0].Rows[0]["id"].ToString());
}
if (ds.Tables[0].Rows[0]["customId"] != null && ds.Tables[0].Rows[0]["customId"].ToString() != "")
{
model.customId = ds.Tables[0].Rows[0]["customId"].ToString();
}
if (ds.Tables[0].Rows[0]["resourceName"] != null && ds.Tables[0].Rows[0]["resourceName"].ToString() != "")
{
model.resourceName = ds.Tables[0].Rows[0]["resourceName"].ToString();
}
if (ds.Tables[0].Rows[0]["downloadTime"] != null && ds.Tables[0].Rows[0]["downloadTime"].ToString() != "")
{
model.downloadTime = DateTime.Parse(ds.Tables[0].Rows[0]["downloadTime"].ToString());
}
if (ds.Tables[0].Rows[0]["resourceId"] != null && ds.Tables[0].Rows[0]["resourceId"].ToString() != "")
{
model.resourceId = int.Parse(ds.Tables[0].Rows[0]["resourceId"].ToString());
}
return(model);
}
else
{
return(null);
}
}
