How to save data in current uid in Firebase

问题

I can't save new data ("messages") to current user.

my code for push user info to Firebase

var ref: FIRDatabaseReference! = FIRDatabase.database().reference()

self.ref.child("Users").child("UserID").childByAutoId().setValue(["Name": userName, "Email": userEmail])

code for push messages to Firebase

var messageRef: FIRDatabaseReference = FIRDatabase.database().reference()
let uid = FIRAuth.auth()?.currentUser?.uid
messageRef.child("Users").child("UserID").child(self.uid!).child("Messages").childByAutoId().setValue(["Sender Name": Profile.sharedProfile.Name!,"Date": self.currentDate(),"Time": self.currentTime(), "Text": self.text.text!])

It's what i see in Firebase Database

but i want's like this messages need save in current user

回答1:

Your first block of code is incorrect. If you want to put your Messages under existed User, you should use child(self.uid!) instead of childByAutoId(), because the second method generates new instance in firebase DB. So your code should looks something like:

var ref: FIRDatabaseReference! = FIRDatabase.database().reference()
self.ref.child("Users").child("UserID").child(self.uid!).setValue(["Name": userName, "Email": userEmail])

来源：https://stackoverflow.com/questions/41634439/how-to-save-data-in-current-uid-in-firebase