QFileSystemModel: setRootPath() always shows me the same folder in Linux.

[robgeek]

Hello!

I'm trying to set a rootpath to see files and folders in a QTreeView but no matter what string I set to rootpath I always see the same root folder "/" in my case because I'm using linux.
I would like to set "/media/backup" but when I start the program it always shows my "/". Even if I pass to setRootPath("") it shows me the same folder.

Why and how can I fix this?

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QFileSystemModel>
#include <QMainWindow>
#include <QtCore>
#include <QtGui>
 
QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();
 
private slots:
    void on_buttonCompress_clicked();
 
    void on_buttonExtract_clicked();
 
private:
    Ui::MainWindow *ui;
 
    QFileSystemModel *fsModel;
};
#endif // MAINWINDOW_H

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QFileSystemModel>
#include <QMainWindow>
#include <QtCore>
#include <QtGui>

QT_BEGIN_NAMESPACE
namespace Ui { class MainWindow; }
QT_END_NAMESPACE

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    MainWindow(QWidget *parent = nullptr);
    ~MainWindow();

private slots:
    void on_buttonCompress_clicked();

    void on_buttonExtract_clicked();

private:
    Ui::MainWindow *ui;

    QFileSystemModel *fsModel;
};
#endif // MAINWINDOW_H

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#include "mainwindow.h"
#include "ui_mainwindow.h"
 
MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow)
{
    ui->setupUi(this);
 
    const QString rootPath = "/media/backup/";
 
    fsModel = new QFileSystemModel(this);
    fsModel->setRootPath(rootPath);
 
    ui->treeView->setModel(fsModel);
}
//...

#include "mainwindow.h"
#include "ui_mainwindow.h"

MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    const QString rootPath = "/media/backup/";

    fsModel = new QFileSystemModel(this);
    fsModel->setRootPath(rootPath);

    ui->treeView->setModel(fsModel);
}
//...

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