如何访问 RowDataPacket 对象

How to access a RowDataPacket object(如何访问 RowDataPacket 对象)

问题描述

我目前正在使用 Node-webkit 开发桌面应用程序.在此过程中，我需要从本地 MySQL 数据库中获取一些数据.

I'm currently developing a desktop application with Node-webkit. During that process I need to get some data from a local MySQL-database.

查询工作正常，但我不知道如何访问结果.我将它们全部存储在一个数组中，然后传递给一个函数.在控制台中，它们看起来像这样:

The querying works fine, but I can't figure out how to access the results. I store all of them in an array that is then passed to a function. In the console they look like this:

RowDataPacket {user_id: 101, ActionsPerformed: 20}
RowDataPacket {user_id: 102, ActionsPerformed: 110}
RowDataPacket {user_id: 104, ActionsPerformed: 3}

这是查询结构:

var ret = [];
conn.query(SQLquery, function(err, rows, fields) {
    if (err)
        alert("...");
    else {
        for (var i of rows) 
            ret.push(i);
    }
    doStuffwithTheResult(ret);
}

如何在 doStuffwithTheResult 函数中检索它?值更重要，但如果我也能拿到钥匙那就太好了.

How do I retrieve this in the doStuffwithTheResult function? The values are more important, but if I could get the keys as well that would be great.

推荐答案

原来它们是普通对象，您可以通过 user_id 访问它们.

Turns out they are normal objects and you can access them through user_id.

RowDataPacket 实际上是创建对象的构造函数的名称，它看起来像这样new RowDataPacket(user_id, ...).您可以通过访问其名称 [0].constructor.name

RowDataPacket is actually the name of the constructor function that creates an object, it would look like this new RowDataPacket(user_id, ...). You can check by accessing its name [0].constructor.name

如果结果是一个数组，则必须使用[0].user_id.

If the result is an array, you would have to use [0].user_id.

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