猫鼬变量键名 [英] Mongoose variable key name

问题描述

我有一个mongo对象，并希望通过mongoose访问我的Web应用程序.我定义的架构有一个Object存储用户ID和3级值(是，可能是或否).

I have a mongo object and wish to access it via mongoose for my web app. The schema I've defined has an Object storing user ids and a 3-level value (yes, maybe or no).

例如

"user_info": {
    "<id_value_1>": "y",
    "<id_value_2>": "n"
}

上面的id_value_*是用户会话ID，因此是一串长串的随机字符.如何为此创建mongoose Schema?

The id_value_*s above are the users session ids so a long string of random characters. How can I create a mongoose Schema for this?

1. user_info: {String, String}可以工作吗?

我可以对其进行重组，以使user_info是对象{ "sessionid": "<value>", "value: "y"}的数组，这没关系，这是最好的选择吗?

I could restructure it so that the user_info is an array of objects { "sessionid": "<value>", "value: "y"}, which would be ok, is this the best option?

推荐答案

如果您避免在架构中使用动态键并采用第二个主意，那就更好了.

You'll be better off if you avoid dynamic keys in your schema and go with your second idea of:

user_info: [{sessionid: String, value: String}]

您可以使用 $位置运算符来更新各个user_info数组元素sessionid.

You can use the $ positional operator to update individual user_info array elements by sessionid.

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