swift - 写入 Firebase 中的多个节点？

Question

一旦用户点击“发布”按钮，就会发生两件事:

1. 创建“评论”节点
2. 创建“消息”节点

但是，我似乎无法让它写入 firebase 两次:

let ref = Database.database().reference()
let userProfile = UserService.currentUserProfile

let key = ref.child("post").childByAutoId().key

let feed = ["comment": commentView.text,
            "username": uid,
            "timestamp": [".sv":"timestamp"],
            "author": [
                "cid": userProfile?.uid,
                "username": userProfile?.username,
                "fullname": userProfile?.fullname,
                "patthToImage": userProfile?.patthToImage.absoluteString]] as [String : Any]

let commentFeed = ["\(key!)" : feed]
let commentorFeed = [uid: uid]
let commentFe = ["messages": feed]

// my comment node, which is working         

ref.child("posts").child(myPost).child("comment").updateChildValues(commentFeed)
ref.child("posts").child(myPost).updateChildValues(commentorFeed)

//my message node which isn't working

let ches = Database.database().reference().child("messages")
ches.setValue("hahah")

这可能吗？

Answer 1

这不是保存值两次的问题。这似乎是此代码的问题:

let ches = Database.database().reference().child("messages")
ches.setValue("hahah")

您需要改用push():

ref.child("messages").push("hahah")