无法使用“句点"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，但具有句点"的字段将被删除.在尝试更新/删除它们时，名称中似乎默默地失败了.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(这个工作正常)

First create the document (this works fine)

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

如果您尝试删除没有句点的元素，则效果很好.

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

如果您尝试删除带有句点的元素，它不会执行任何操作.

If you try to delete the element with 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?我可以创建元素但不能删除它，这似乎很奇怪.

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

当您在更新或删除的名称中使用句点时，您需要将其括在引号中，例如:

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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