云功能：如何将Firestore Collection复制到新文档？ [英] Cloud Functions: How to copy Firestore Collection to a new document?

问题描述

我想在使用云功能的事件中在Firestore中制作一个集合的副本

I'd like to make a copy of a collection in Firestore upon an event using Cloud Functions

我已经有这个代码迭代集合并复制每个集合document

I already have this code that iterates over the collection and copies each document

    const firestore = admin.firestore()
    firestore.collection("products").get().then(query => {
        query.forEach (function(doc){
            var promise = firestore.collection(uid).doc(doc.data().barcode).set(doc.data());
        });
    });

有更短的版本吗？只是一次复制整个集合？

is there a shorter version? to just copy the whole collection at once?

推荐答案

目前，没有。使用云功能循环遍历每个文档，然后使用指定的数据将新文档设置到不同的集合是唯一的方法。也许这会成为一个很好的功能要求。

Currently, no. Looping through each document using Cloud Functions and then setting a new document to a different collection with the specified data is the only way to do this. Perhaps this would make a good feature request.

我们在谈论多少份文件？对于像10,000这样的东西，它只需要几分钟，顶部。

How many documents are we talking about? For something like 10,000 it should only take a few minutes, tops.

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