/// <summary>
/// 更新一条数据
/// </summary>
public bool Update(MVCLite.Models.Comment model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("update Comment set ");
strSql.Append("Content=@Content,");
strSql.Append("userid=@userid,");
strSql.Append("PID=@PID,");
strSql.Append("username=@username,");
strSql.Append("AddTime=@AddTime,");
strSql.Append("status=@status,");
strSql.Append("articleid=@articleid");
strSql.Append(" where ID=@ID ");
SQLiteParameter[] parameters =
{
new SQLiteParameter("@Content", DbType.String, 400),
new SQLiteParameter("@userid", DbType.Int32, 4),
new SQLiteParameter("@PID", DbType.Int32, 4),
new SQLiteParameter("@username", DbType.String, 50),
new SQLiteParameter("@AddTime", DbType.DateTime),
new SQLiteParameter("@status", DbType.Int32, 4),
new SQLiteParameter("@articleid", DbType.Int32, 4),
new SQLiteParameter("@ID", DbType.Int32, 4)
};
parameters[0].Value = model.Content;
parameters[1].Value = model.userid;
parameters[2].Value = model.PID;
parameters[3].Value = model.username;
parameters[4].Value = model.AddTime;
parameters[5].Value = model.status;
parameters[6].Value = model.articleid;
parameters[7].Value = model.ID;
int rows = DbHelperSQLite.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public MVCLite.Models.Comment DataRowToModel(DataRow row)
{
MVCLite.Models.Comment model = new MVCLite.Models.Comment();
if (row != null)
{
if (row["ID"] != null && row["ID"].ToString() != "")
{
model.ID = int.Parse(row["ID"].ToString());
}
if (row["Content"] != null)
{
model.Content = row["Content"].ToString();
}
if (row["userid"] != null && row["userid"].ToString() != "")
{
model.userid = int.Parse(row["userid"].ToString());
}
if (row["PID"] != null && row["PID"].ToString() != "")
{
model.PID = int.Parse(row["PID"].ToString());
}
if (row["username"] != null)
{
model.username = row["username"].ToString();
}
if (row["AddTime"] != null && row["AddTime"].ToString() != "")
{
model.AddTime = DateTime.Parse(row["AddTime"].ToString());
}
if (row["status"] != null && row["status"].ToString() != "")
{
model.status = int.Parse(row["status"].ToString());
}
if (row["articleid"] != null && row["articleid"].ToString() != "")
{
model.articleid = int.Parse(row["articleid"].ToString());
}
}
return(model);
}
/// <summary>
/// 增加一条数据
/// </summary>
public bool Add(MVCLite.Models.Comment model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into Comment(");
strSql.Append("ID,Content,userid,PID,username,AddTime,status,articleid)");
strSql.Append(" values (");
strSql.Append("@ID,@Content,@userid,@PID,@username,@AddTime,@status,@articleid)");
SQLiteParameter[] parameters =
{
new SQLiteParameter("@ID", DbType.Int32, 4),
new SQLiteParameter("@Content", DbType.String, 400),
new SQLiteParameter("@userid", DbType.Int32, 4),
new SQLiteParameter("@PID", DbType.Int32, 4),
new SQLiteParameter("@username", DbType.String, 50),
new SQLiteParameter("@AddTime", DbType.DateTime),
new SQLiteParameter("@status", DbType.Int32, 4),
new SQLiteParameter("@articleid", DbType.Int32, 4)
};
parameters[0].Value = model.ID;
parameters[1].Value = model.Content;
parameters[2].Value = model.userid;
parameters[3].Value = model.PID;
parameters[4].Value = model.username;
parameters[5].Value = model.AddTime;
parameters[6].Value = model.status;
parameters[7].Value = model.articleid;
int rows = DbHelperSQLite.ExecuteSql(strSql.ToString(), parameters);
if (rows > 0)
{
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// 得到一个对象实体
/// </summary>
public MVCLite.Models.Comment GetModel(int ID)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select ID,Content,userid,PID,username,AddTime,status,articleid from Comment ");
strSql.Append(" where ID=@ID ");
SQLiteParameter[] parameters =
{
new SQLiteParameter("@ID", DbType.Int32, 4)
};
parameters[0].Value = ID;
MVCLite.Models.Comment model = new MVCLite.Models.Comment();
DataSet ds = DbHelperSQLite.Query(strSql.ToString(), parameters);
if (ds.Tables[0].Rows.Count > 0)
{
return(DataRowToModel(ds.Tables[0].Rows[0]));
}
else
{
return(null);
}
}
