[PySide] Form dialog subclassing QDialog

Aaron Richiger a.richi at bluewin.ch
Mon Mar 3 18:32:56 CET 2014

Hello Jerome!

Yes, you could simply remove all self.buildings occurences in your code 
to remove redundancy. If you need a list of all buildings in the model, 
you could implement a get_buildings_list() method that builds and 
returns a list from the models items.

For editing entries QDelegates are great, you can define any widget as 
editor. In the delegates, you can also handle invalid input, sometimes 
QValidator is another option. Have a look at both directions and their 
subclasses, they are very powerful.

Have a nice evening!

Am 03.03.2014 18:13, schrieb Jérôme:
> Hi.
> Thank you all for your answers/precisions.
> I adapted the code proposed by Aaron to my needs. I'm attaching the new
> version.
> I implemented Add, Edit, Remove, and even Copy (i.e. "Edit as new").
> A few questions remain (and probably much more to come...).
> Isn't there a data duplication in the TableModel class, with both the
> buildings[] list, and the model's Items ? In practice, this is what I
> was going to do since there will be attributes that are not values but
> references to other custom classes instances. But although I was
> expecting to do this, I suspected it might not be the best way.
> I ended up removing the Controller and merging it with the Main window.
> It looked simpler to me, but it might not be the best choice.
> I also had to remove the TableView class, because the TableView is
> already instanciated in the .py file generated by Qt Designer and I
> didn't know how to do otherwise.
> In practice, I now have a main window that acts both as view and
> controller, and a building model. (Qt's doc talks about Model/View
> programming.)
> The whole {TableView + AddEditCopyRemove buttons} is meant to be used
> extensively in this application, so it may become a custom widget.
> There is currently no value check. At some point, the model would need
> to be able to perform a check and return an error if, for instance, we
> don't want two buildings with the same name. I suppose I'll find a way
> using Exceptions.
> Thanks again for your precious help. Things are clearer now and I'm not
> stuck anymore.
> Have a nice evening.
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