将子节点从一个节点移动到另一个节点Android Firebase

Question

我想将票证（子节点）移动到将要创建的另一个节点。到目前为止，我已经能够删除所选票证。我只是想知道如何将故障单移到新的父节点。

下图是我的数据库结构。我要将选定的孩子从“票证”移动到新节点。

下面的代码是我用来删除所选票证的代码。运送车票有很多事情吗？

 private void moveDataDialog(final String currentTicketCode ) {
    //alert dialog
    AlertDialog.Builder builder = new AlertDialog.Builder(WalletActivity.this);
    builder.setTitle("Move my Ticket");
    builder.setMessage("Are you sure you want to move  your ticket?");
    //set positive/yes button
    builder.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            //user pressed "Yes", delete data


            Query mQuery = mRef.orderByChild("ticketcode").equalTo(currentTicketCode);
            mQuery.addListenerForSingleValueEvent(new ValueEventListener() {
                @Override
                public void onDataChange(@NonNull DataSnapshot dataSnapshot) {

                    for (DataSnapshot ds: dataSnapshot.getChildren()){

                      ds.getRef().removeValue(); // remove values from firebase where ticketCode matches
                   }
                    //show message that post(s) deleted
                    Toast.makeText(WalletActivity.this, "Ticket deleted successfully....", Toast.LENGTH_SHORT).show();
                }
                @Override
                public void onCancelled(@NonNull DatabaseError databaseError) {
                    //if anything goes wrong get and show error message
                    Toast.makeText(WalletActivity.this, databaseError.getMessage(), Toast.LENGTH_SHORT).show();
                }
            });


        }
    });