swift 4如何获取除当前用户之外的所有用户

Question

我真的有一个来自firebase 3的获取用户的代码。但是需要获取除当前用户之外的所有用户。在我的新消息控制器中，我想要获取用户。

Name    count
a       2
b       1

Answer 1

试试这个，

func fetchUserExceptCurrent() {
    Database.database().reference().child("users").observe(.childAdded, with: { (snapshot) in
        print(snapshot)

        if let dictionary = snapshot.value as? [String: AnyObject] {

            let user = User()

            user.id = snapshot.key
            user.name = dictionary["name"] as? String
            user.email = dictionary["email"] as? String
            user.profileImageUrl = dictionary["profileImageUrl"] as? String
            let currentUser = Auth.auth().currentUser?.uid

            let currentUserID : String = (FIRAuth.auth()?.currentUser?.uid)! //get current user id

            //Filter current user
            if user.id != currentUserID {
                self.users.append(user)
            } else {
                debugPrint("Current user filtered")
            }

            DispatchQueue.main.async {
                self.tableView.reloadData()
            }
        }

    }, withCancel: nil)
}