[QGIS-Developer] Using QML widget as editing widget

[Bo Victor Thomsen]

Hi list -

I've been doodling a while using the QML widget i QGIS (version 3.42, 
Windows) : and I have a question: Is it possible to design a editing 
widget using the QML widget as a base?

And the why ? :

I have a postgres table, where one of the fields is a "jsonb" object. I 
can /show/ the json values using the "Json view" widget or even make the 
elements of the json object editable using the "key/value" widget (my 
json object are "flat": only a series of key/value pairs).

However, I would like to add a drop-down value list to some of the 
elements in the jsonb field, so the user can choose a value from a list 
instead of writing the value using a keyboard.

As far as i can see, i have couple of potential choices: Try to subclass 
the "key/value" widget if that's possible from python and extend the 
functionality.

Or design a QML document which shows the json element in a number of 
combo-boxes.

And hence the question: Can i replace the field value with the changed 
version from a QML widget. And how ??



-- 
Med venlig hilsen / Best regards

Bo Victor Thomsen
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