Cannot drag children of QTreeView when first column is hidden

[kazaak]

Hi,

I've implemented a tree model on top of a QSqlTableModel via a proxy model (QSqlTableModel doesn't work well with parent/child relationships). It works great, except when I hide the first column of the view (id column). I want to hide the id column because I don't want it in the view but once I do, dragging children does not work. Any thoughts? I haven't been able to make any progress on this. code attached and below. Thanks!

sqltreemodel.h

#ifndef TREEMODEL_Hproxytreemodel.hproxytreemodel.cppproxytreeitem.hproxytreeitem.cpp
#define TREEMODEL_H
 
#include <QSqlTableModel>
 
class sqlTreeModel : public QSqlTableModel
{
    Q_OBJECT
 
public:
    sqlTreeModel(QObject *parent=nullptr);
 
    virtual Qt::DropActions supportedDragActions() const { return Qt::MoveAction; }
    virtual Qt::DropActions supportedDropActions() const { return Qt::MoveAction; }
};
 
#endif // TREEMODEL_H

#ifndef TREEMODEL_H[ATTACH]12947[/ATTACH][ATTACH]12948[/ATTACH][ATTACH]12949[/ATTACH][ATTACH]12950[/ATTACH]
#define TREEMODEL_H

#include <QSqlTableModel>

class sqlTreeModel : public QSqlTableModel
{
    Q_OBJECT

public:
    sqlTreeModel(QObject *parent=nullptr);

    virtual Qt::DropActions supportedDragActions() const { return Qt::MoveAction; }
    virtual Qt::DropActions supportedDropActions() const { return Qt::MoveAction; }
};

#endif // TREEMODEL_H

To copy to clipboard, switch view to plain text mode 

mainwindow.h

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
#include <QSqlError>
 
class QTreeView;
class sqlTreeModel;
class proxyTreeModel;
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
 
public:
    explicit MainWindow(QWidget *parent = nullptr);
 
private:
    QTreeView *treeView;
 
    sqlTreeModel *plidModel;
    proxyTreeModel *proxyPlidModel;
    QHash<QString,QPair<int,int> > playlistVideoTracker;
 
    QSqlError initdb();
    void setupModels();
};
 
#endif // MAINWINDOW_HAttachment 12941Attachment 12942Attachment 12943Attachment 12944Attachment 12945mainwindow.cpp

#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QSqlError>

class QTreeView;
class sqlTreeModel;
class proxyTreeModel;

class MainWindow : public QMainWindow
{
    Q_OBJECT

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

private:
    QTreeView *treeView;

    sqlTreeModel *plidModel;
    proxyTreeModel *proxyPlidModel;
    QHash<QString,QPair<int,int> > playlistVideoTracker;

    QSqlError initdb();
    void setupModels();
};

#endif // MAINWINDOW_H[ATTACH]12941[/ATTACH][ATTACH]12942[/ATTACH][ATTACH]12943[/ATTACH][ATTACH]12944[/ATTACH][ATTACH]12945[/ATTACH][ATTACH]12946[/ATTACH]

To copy to clipboard, switch view to plain text mode