Firebase automatically updating values using Swift

Question

What I'm doing is exporting phone number & owner's name from iPhone address book.

Here is the code:

dbRef = Database.database().reference()


let nameData  = ["contactName": contact.name ]
let phoneData = ["contactPhone": contact.phone]


self.dbRef.child("user/contacts").childByAutoId().setValue(nameData)

self.dbRef.child("user/contacts").observe(.value, with: { (snapshot) in

     if let result = snapshot.children.allObjects as? [DataSnapshot] {

            for child in result {

                let orderID = child.key
                self.dbRef.child("user/contacts").child(orderID).updateChildValues(phoneData)
            }
        }
     })

But the result is looking like that: ContactPhone's values are changing automatically, non-stop until I stop the xCode simulator.

Can Somebody help me, please.. Thank you

Nirav D · Accepted Answer · 2017-06-21 10:42:37Z

2

What you need to do is combine the nameData and phoneData in single dictionary and set this in contact.

dbRef = Database.database().reference()
let data  = ["contactName": contact.name, "contactPhone": contact.phone ]
self.dbRef.child("user/contacts").childByAutoId().setValue(data)

Side note: Remove this observing code and put at some other place like in viewDidLoad.

Edit: If you want to set both separately then you need to get reference of that childByAutoId.

dbRef = Database.database().reference().child("user/contacts").childByAutoId()
let nameData  = ["contactName": contact.name ]
let phoneData = ["contactPhone": contact.phone]
self.dbRef.setValue(nameData)
self.dbRef.updateChildValues(phoneData)

edited Jun 21, 2017 at 10:42

answered Jun 21, 2017 at 10:30

Nirav D

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4 Comments

KUNWOO MYUNG Over a year ago

Thank you! But Isn't it possible if i use nameData and phoneData separatly, not in single dictionary?

Nirav D Over a year ago

@KUNWOOMYUNG Then you need to reference of that childByAutoId

KUNWOO MYUNG Over a year ago

Cool, Thanks again !

Nirav D Over a year ago

@KUNWOOMYUNG Check the edited answer for that, but its not the preferred way

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