在随机firebase id swift 4下保存geoFire位置

我正在尝试在每个postId下保存地理位置信息,但目前还不太清楚如何这样做.有人可以帮我弄清楚如何在postId节点下保存信息.

@objc func handlePost() {

    navigationItem.rightBarButtonItem?.isEnabled = false

    guard let uid = Auth.auth().currentUser?.uid else { return }

    guard let caption = textView.text, caption.characters.count > 0 else { return }

    let userPostRef = Database.database().reference().child("posts").child(uid)

    let ref = userPostRef.childByAutoId()

    guard let locationName = locationNameButton.titleLabel?.text else { return }

    let latitude = lat
    let longitude = long

    let geoLatitude = (latitude as! NSString).doubleValue
    let geoLongitude = (longitude as! NSString).doubleValue

    geoFireRef = Database.database().reference().child("posts").child(uid)
    geoFire = GeoFire(firebaseRef: geoFireRef)

    let values = ["caption": caption,"locationName": locationName, "latitude": latitude,"longitude": longitude,"creationDate": Date().timeIntervalSince1970] as [String : Any]

    geoFire?.setLocation(CLLocation(latitude: geoLatitude, longitude: geoLongitude), forKey: ref.key!)

如果要将地理位置存储在相同的密钥下

let ref = userPostRef.childByAutoId()

您可以从ref获取密钥属性.所以：

geoFire?.setLocation(CLLocation(latitude: geoLatitude, longitude: geoLongitude), forKey: ref.key)