在Firestore中相当于.push？ [英] Equivalent of .push in Firestore?

问题描述

我正在尝试将以前使用实时数据库的firebase实现转换为使用firestore，因为我喜欢收集的想法和使用它的好处。

I am trying to convert my firebase implementation which previously used realtime database to use firestore as I like the idea of collections and the perks of using it.

如何做我在下面实现了firestore等价物？

How do I implement below into firestore equivalent?

firebase.database().ref('documentPath').push()

推荐答案

在Cloud Firestore中拥有与Firebase Realtime中相同的行为使用 push（）函数时，数据库是让Cloud Firestore为您自动生成ID。您可以通过调用 add（）这样的函数来执行此操作：

To have the same bahaviour in Cloud Firestore as you have in Firebase Realtime database when using the push() function, is to let Cloud Firestore auto-generate an ID for you. You can do this by calling add() function like this:

var addYourDoc = db.collection('documentPath').add({
  property_key: 'property_value',
}).then(ref => {
  console.log('document ID: ', ref.id);
});

控制台中的输出将是实际生成的ID。

The output in the console will be the actual generated id.

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