[QGIS-Developer] Issues with custom forms with Python (in both QGIS 2 and QGIS 3)

[Tudor Barascu]

 Hi Victor,
I had the same problem in finding where to put the python logic in QGIS 3.Here you go: python_logic.jpg

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python_logic.jpg

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In the image above it's a button on the right of the Provide ui-file and on the left of the "Show form on add feature...
Regards,Tudor 

    On Tuesday, February 6, 2018, 9:33:27 AM GMT+2, Victor Olaya <volayaf at gmail.com> wrote:  
 
 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 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?

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