[Qt-interest] QSortFilterProxyModel over a QSqlRelationalTableModel

[Scott Aron Bloom]

Looks like a bug in the createEditor...

Should check for a source model...

I would file it with trolltech, with the fix.. Then create your own
derived delegate with the 2 or 3 lines of code fix.

Scott

> -----Original Message-----
> From: qt-interest-bounces at trolltech.com [mailto:qt-interest-
> bounces at trolltech.com] On Behalf Of mario
> Sent: 2009-01-30 08:16
> To: qt-interest at trolltech.com
> Subject: [Qt-interest] QSortFilterProxyModel over a
> QSqlRelationalTableModel
> 
> Hi all.
> 
> Problem: I have QSqlRelationalTableModel to show in a QTableView.
> I put a QSortFilterProxyModel between the sqlmodel and the view... It
> works but I loose the "automatic combobox features": when I
> doubleclick on the reliation cell, a normal editor appears.
> 
> No matter if I write or not:
> 
> tableView->setItemDelegate( new QSqlRelationalDelegate(tableView) );
> 
> This is the source code of QSqlRelationalDelegate
> 
> [...]
> QWidget *createEditor(QWidget *parent,
>                       const QStyleOptionViewItem &option,
>                       const QModelIndex &index) const
> {
>     const QSqlRelationalTableModel *sqlModel = qobject_cast<const
> QSqlRelationalTableModel *>(index.model());
>     QSqlTableModel *childModel = sqlModel ?
> sqlModel->relationModel(index.column()) : 0;
>     if (!childModel)
>         return QItemDelegate::createEditor(parent, option, index);
> 
> [...]
> 
> Obviously the cast fails, and the "QItemDelegate::createEditor(parent,
> option, index);" is called.
> 
> How can I do?
> The only solution I see is to paste the code from
> QSqlRelationalDelegate in my own delegate... (I know... 10 lines..
> but.. seems bad)
> 
> Tnx
> 
> 
> --
> Mario Signorino | www.sgrunt.net
> _______________________________________________
> Qt-interest mailing list
> Qt-interest at trolltech.com
> http://lists.trolltech.com/mailman/listinfo/qt-interest