Hi I am writing documentation about custom forms, but I am encountering some problems.
In the case of QGIS 2, it seems that there is no way of avoiding the dialog to be closed when the OK button is clicked. I read this blog post <https://nathanw.net/2011/09/05/qgis-tips-custom-feature-forms-with-python-logic/>by Nathan, in which it disconnects the default 'accepted' signal from the 'dialog.accept' slot. I tried that, but it doesnt seem to be working. It runs the validation function that I connect to that signal, but even if I dont accept the dialog in that function, it closes it. I also tried using the disconnectButtonBox() method of the QgsAttributeForm class, but it does nothing. The buttons still do their work. Is this a bug, or I am doing something wrong? In QGIS3, it seems that now only the ui file can be provided, but not a python file with the form logic. How is that added now? Thanks!
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