如何使用firestore were field方法并将文档添加到另一个集合中
我正在进行一个使用商店的项目。我的结构数据：
我的代码段
//current user sign in here and uid "VjZfKF1zmrV00C9VeTZxRmogybA2"
let currentUser = Auth.auth().currentUser
let db = Firestore.firestore()
db.collection("Blah").whereField("users", isEqualTo: currentUser?.uid).collection("otherPath").document().addDocument
我想添加数据以使用CurrentUser UID，如果它匹配“ Blah”内部文档，则添加该目标文档其他集合。
.adddocumets或.setData它不允许firestore，那么我该如何弄清楚呢？
I am working a project to use shops. My structure data:
My code snippet
//current user sign in here and uid "VjZfKF1zmrV00C9VeTZxRmogybA2"
let currentUser = Auth.auth().currentUser
let db = Firestore.firestore()
db.collection("Blah").whereField("users", isEqualTo: currentUser?.uid).collection("otherPath").document().addDocument
I want to add data to use currentuser uid and if it is matching "Blah" inside documents then add that targeting document other collection.
.adddocumets or .setData it isn't allowed to firestore, so how can i figure it?
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一口气无法向Firestore发送查询和更新语句。取而代之的是：
此外，由于
用户是一个数组字段，因此您需要使用array-contains操作员匹配正确的文档。There is no way to send a query and an update statement to Firestore in one go. You will instead have to:
In addition, since
usersis an array field, you'll want to use thearray-containsoperator to match the correct documents.