无法使用“期间”更新/删除Firestore字段在名字里 [英] Cannot update/delete Firestore field with "period" in the name

问题描述

我正在尝试更新/删除Firestore文档中的字段，但是在尝试更新/删除它们时，名称中具有句点的字段似乎无声地失败。我有句点的原因是我使用URL作为对象中的键，我觉得这是一个半常见的用例。

I'm trying to update/delete a fields in a Firestore document, but the fields that have a "period" in the name seem to be silently failing when trying to update/delete them. The reason I have periods is that I'm using URLs as the keys in the object, I feel this is a semi-common use case.

示例：

首先创建文档（这很好）

First create the document (this works fine)

db.collection("data").doc("temp").set({
  helloworld: {
      key1: 'foo'
  },
  hello.world: {
      key1: 'bar'
  }
})

如果你试图删除没有句点的元素，它工作正常。

If you try to delete the element without the period, it works fine.

db.collection("data").doc("temp").update({
    helloworld: firebase.firestore.FieldValue.delete()
})
// Value is Deleted

如果您尝试删除没有句点的元素，它就不会做任何事情。

If you try to delete the element without the period, it doesn't do anything.

db.collection("data").doc("temp").update({
    hello.world: firebase.firestore.FieldValue.delete()
})
// Nothing Happens!

我也试过

let u = {}
u['hello.world'] = firebase.firestore.FieldValue.delete()
db.collection("data").doc("temp").update(u)
// Nothing Happens!

这是一个错误吗？是否支持字段名称中的句点？看起来很奇怪我可以创建元素但不能删除它。

Is this a bug? Are periods in field names supported? It seems strange I can create the element but not delete it.

推荐答案

当你使用句点时，你需要用引号括起来更新或删除时的名称如：

You need to wrap it in quotes when you use periods in the name on an update or delete like:

db.collection("data").doc("temp").update({
  "hello.world": firebase.firestore.FieldValue.delete()
})

或动态名称：

[`hello.${world}`]: firebase.firestore.FieldValue.delete()

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