CODEWITHSUNDEEP
swiftfirebasefirebase-realtime-database
King
King

Reputation: 2025

updating values with firebase

I have a firebase ref and I want to update the ref of the firebase but my app crashes when ever I try it Could not cast value of type '__NSCFBoolean' (0x2106be078) to 'NSDictionary'

my ref looks like this below 

Database.database().reference(forLastMsg: championId).child(toID).updateChildValues(withValues)
                                Database.database().reference(forLastMsg: toID).child(championId).updateChildValues(withValues)

even using setValue crashes the app too.

I am actually constantly listning to the refs that is been updated so on valueChange 

for snapshot in snapshot.children {
                        let receivedMessage = (snapshot as! DataSnapshot).value as!
                            NSDictionary
...

enter image description here

Upvotes: 0

Views: 99

Answers (2)

Shehata Gamal
Shehata Gamal

Reputation: 100503

To update

let newVal = //// some dictionary 
 // you may add komal_xyz as dynamic according to your logic
Database.database().reference().child("komal_xyz/\(id)").updateChildValues(newVal) { (err, ref) in

}

To listen 

Database.database().reference().child("komal_xyz/\(id)").observe(.value) { (ref) in
   //  

   let res = ref.value as! [String:Any]    
}

Upvotes: 0

Pete Streem
Pete Streem

Reputation: 390

You have to update it in such way

let updateDatabase = databaseReference.child("something").child(someId)

    let data = [
        "boolValue": myBoolean,
        "dateUpdated": Date().toSeconds()
        ] as [String : Any]

    updateDatabase.updateChildValues(data)

Upvotes: 1

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