MongoDB &PyMongo:如何存储集合/列表? [英] MongoDB & PyMongo: how to store a set / list?

问题描述

显然这是不可能的，到目前为止我发现的最好的建议是使用 dict 但这不是我想要的.还有办法在MongoDB中存储集合/列表吗?

Apparently it is not possible and the best advice I found so far is to use dict but this is not what I want. Is there still a way to store a set / list in MongoDB?

推荐答案

使用 mongo 你必须传递一个 json(在 python 中我们基本上可以认为它是一个 dict)才能真正做任何事情，所以说你想要向集合中的 hamburgers 字段添加一个列表或一组数字，您可以按如下方式准备它:

With mongo you have to pass a json (which in python we can essentially think of as a dict) in order to do anything really, so say you want to add a list or set of numbers to the hamburgers field in your collection, you would prepare it as follows:

db.your_collection.update({'$push': {'hamburgers': {$each: [1, 2, 3, 4]}}})

如果是集合，则不能将其转换为列表

if it's a set, you cant convert it to a list

db.your_collection.update({'$push': {'hamburgers': {$each: list({1, 2, 3, 4})}}})

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