Adding Data in the Realtime Database but it adding in the wrong child

Question

I'm trying to add new user data under the userId but instead it is replacing the old data into new data and adding another "users" and "user_account_settings".

This is my Realtime Database: enter image description here

My Realtime Database must be like this: adding a new user data without replacing old datas into new datas and also not adding "users" and "user_account_settings".

This the example of database structure I want : enter image description here

This is the code for adding new user:

public void addNewUser(String email, String username, String bio, String website, String interests, String address, String profile_photo){

    User user = new User(userID,1 , email, address, StringManipulation.condenseUsername(username));

    myRef.child(mContext.getString(R.string.dbname_users))
            .child(userID)
            .child("users")
            .push()
            .setValue(user);

    UserAccountSettings settings = new UserAccountSettings(
            interests,
            username,
            0,
            0,
            0,
            "",
            username,
            website,
            bio
    );

    myRef.child(mContext.getString(R.string.dbname_user_account_settings))
            .child(userID)
            .child("user_account_settings")
            .push()
            .setValue(settings);
}

This is the code where I call the firebaseMethods.addNewUser from the RegisterActivity.class :

 private void setupFirebaseAuth(){
    Log.d(TAG, "setupFirebaseAuth: setting up firebase auth.");

    mAuth = FirebaseAuth.getInstance();
    firebaseDatabase = FirebaseDatabase.getInstance();
    myRef = FirebaseDatabase.getInstance().getReference();

    mAuthListener = new FirebaseAuth.AuthStateListener() {
        @Override
        public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
            FirebaseUser user = firebaseAuth.getCurrentUser();

            if (user != null) {
                // User is signed in
                Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());

                myRef.addListenerForSingleValueEvent(new ValueEventListener() {
                    @Override
                    public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
                        // 1st check: Make sure the username is not already in use
                        if (firebaseMethods.checkIfUsernameExists(username, dataSnapshot)){
                            append = myRef.push().getKey().substring(3,10);
                            Log.d(TAG, "onDataChange: username already exists. Appending random string to name: " + append);
                        }

                        username = username + append;

                        // add new user to the database

                        firebaseMethods.addNewUser(email,username,"","","","","");

                        Toast.makeText(mContext, "Signup successful. Sending verification email.", Toast.LENGTH_SHORT).show();
                    }

                    @Override
                    public void onCancelled(@NonNull DatabaseError databaseError) {

                    }
                });

                finish();

            } else {
                // User is signed out
                Log.d(TAG, "onAuthStateChanged:signed_out");
            }
            // ...
        }
    };

This is my data structure now , Frank van Puffelen: enter image description here

Answer 1

If you want to add data under userid then do this:

DatabaseReference ref=FirebaseDatabase.getInstance().getReference().child("users").child("userid");

Then the location will be the userid and any data you add will be under it.

Answer 2

Remove this line above :

myRef = FirebaseDatabase.getInstance().getReferenceFromUrl(" https://my-app-e37d8.firebaseio.com/path/to/data ");

and do something like :

myRef.child("users").child(userId).setValue(YourClass.class);

put your class name instead of YourClass

or if you are storing only string then just do :

myRef.child("users").child(userId).setValue("Hello World");

Answer 3

You're writing to the wrong location in these snippets:

.child(userID)
.child("users")
.push()

This leads to a path /$uid/users/-L.... , which is not what you want. You instead want the path to be /users/$uid , which means your code needs to match that:

.child("users")
.child(userID)

So with that your addNewUser becomes:

public void addNewUser(String email, String username, String bio, String website, String interests, String address, String profile_photo){

    User user = new User(userID,1 , email, address, StringManipulation.condenseUsername(username));

    myRef.child(mContext.getString(R.string.dbname_users))
            .child(userID)
            .setValue(user);

    UserAccountSettings settings = new UserAccountSettings(
            interests, username, 0, 0, 0, "", username, website, bio
    );

    myRef.child(mContext.getString(R.string.dbname_user_account_settings))
            .child(userID)
            .setValue(settings);
}