qsqltablemodel

This is a follow-up to this question . In there, we created an editable subclass of QSqlQueryModel, to use with complex queries. Now I need to add a functionality like QTableModel's setEditStrategy so I can cache all changes and accept or revert them using buttons. PyQt apparently doesn't allow multiple inheritance and I cannot find sufficient documentation to re-implement this method in my custom model, therefor here's the question: How can I re-implement QSqlTableModel.setEditStragety (or something like it) including RevertAll() and SubmitAll() in an editable QSqlQueryModel? Here's a CVME:

My class DataTable is derived from QAbstractTableModel. It uses a QSqlTableModel object internally to fetch data from a db table. It represents a record for every row in the db (it does more but the record count is always the number of rows in the db table). With MySql, my DataTable::rowCount() implementation just calls rowCount() on the QSqlTableModel, which works nicely. Now with SQLite, Qt's SQLite driver returns a row count of 256 if there are more than 256 rows in the db table, so my DataTable class also returns 256 - which is wrong. The documentation tells me to call while (sql_model-

How can I make an editable QTableView displaying data from a complex SQLite query? I need to fill a QTableView with data from several SQLite tables. This needs to be editable by the user. As the queries are a bit complex (including JOINs and CASE WHEN etc.), I'm doing this via a QSqlTableModel and a QSqlQuery. I have been told, however, that this is not how QSqlTableModels should be used. So, can someone please show me how to get a result like the one shown here via the proper way? Also, while my QTableViews are editable, the results don't seem to get stored in the SQLite database. (When I

I have created a delegate and i'm able to align and boldface the numbers on the table. I would like to force them to have two decimal places, for example 1.2 should show as 1.20. This is the header of the delagete: #ifndef TOTALDELEGATE_H #define TOTALDELEGATE_H #include <QObject> #include <QStyledItemDelegate> class TotalDelegate : public QStyledItemDelegate { public: TotalDelegate(); virtual void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const Q_DECL_OVERRIDE; }; #endif // TOTALDELEGATE_H Here is the implementation: #include "totaldelegate.h"