/// <summary>
/// 增加一条数据
/// </summary>
public int Add(CSLG.CTalk.Model.messsageInfo model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into messsageInfo(");
strSql.Append("senderID,receiverID,messageContent,sendTime,messageState)");
strSql.Append(" values (");
strSql.Append("@senderID,@receiverID,@messageContent,@sendTime,@messageState)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters =
{
new SqlParameter("@senderID", SqlDbType.Int, 4),
new SqlParameter("@receiverID", SqlDbType.Int, 4),
new SqlParameter("@messageContent", SqlDbType.NVarChar, 500),
new SqlParameter("@sendTime", SqlDbType.SmallDateTime),
new SqlParameter("@messageState", SqlDbType.Int, 8)
};
parameters[0].Value = model.senderID;
parameters[1].Value = model.receiverID;
parameters[2].Value = model.messageContent;
parameters[3].Value = model.sendTime;
parameters[4].Value = model.messageState;
object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
if (obj == null)
{
return(0);
}
else
{
return(Convert.ToInt32(obj));
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public CSLG.CTalk.Model.messsageInfo GetModel(int messageID)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select top 1 messageID,senderID,receiverID,messageContent,sendTime,messageState from messsageInfo ");
strSql.Append(" where messageID=@messageID");
SqlParameter[] parameters =
{
new SqlParameter("@messageID", SqlDbType.Int, 4)
};
parameters[0].Value = messageID;
CSLG.CTalk.Model.messsageInfo model = new CSLG.CTalk.Model.messsageInfo();
DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
if (ds.Tables[0].Rows[0]["messageID"] != null && ds.Tables[0].Rows[0]["messageID"].ToString() != "")
{
model.messageID = int.Parse(ds.Tables[0].Rows[0]["messageID"].ToString());
}
if (ds.Tables[0].Rows[0]["senderID"] != null && ds.Tables[0].Rows[0]["senderID"].ToString() != "")
{
model.senderID = int.Parse(ds.Tables[0].Rows[0]["senderID"].ToString());
}
if (ds.Tables[0].Rows[0]["receiverID"] != null && ds.Tables[0].Rows[0]["receiverID"].ToString() != "")
{
model.receiverID = int.Parse(ds.Tables[0].Rows[0]["receiverID"].ToString());
}
if (ds.Tables[0].Rows[0]["messageContent"] != null && ds.Tables[0].Rows[0]["messageContent"].ToString() != "")
{
model.messageContent = ds.Tables[0].Rows[0]["messageContent"].ToString();
}
if (ds.Tables[0].Rows[0]["sendTime"] != null && ds.Tables[0].Rows[0]["sendTime"].ToString() != "")
{
model.sendTime = DateTime.Parse(ds.Tables[0].Rows[0]["sendTime"].ToString());
}
if (ds.Tables[0].Rows[0]["messageState"] != null && ds.Tables[0].Rows[0]["messageState"].ToString() != "")
{
model.messageState = int.Parse(ds.Tables[0].Rows[0]["messageState"].ToString());
}
return(model);
}
else
{
return(null);
}
}
/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(CSLG.CTalk.Model.messsageInfo model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update messsageInfo set ");
strSql.Append("senderID=@senderID,");
strSql.Append("receiverID=@receiverID,");
strSql.Append("messageContent=@messageContent,");
strSql.Append("sendTime=@sendTime,");
strSql.Append("messageState=@messageState");
strSql.Append(" where messageID=@messageID");
SqlParameter[] parameters =
{
new SqlParameter("@senderID", SqlDbType.Int, 4),
new SqlParameter("@receiverID", SqlDbType.Int, 4),
new SqlParameter("@messageContent", SqlDbType.NVarChar, 500),
new SqlParameter("@sendTime", SqlDbType.SmallDateTime),
new SqlParameter("@messageState", SqlDbType.Int, 8),
new SqlParameter("@messageID", SqlDbType.Int, 4)
};
parameters[0].Value = model.senderID;
parameters[1].Value = model.receiverID;
parameters[2].Value = model.messageContent;
parameters[3].Value = model.sendTime;
parameters[4].Value = model.messageState;
parameters[5].Value = model.messageID;
int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
