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Get Primary Key Value from Object in QGIS

is it possible to request the primary key value of an selected object in QGis?

My Layer is stored in a postgresql db. Loaded as wfs Layer in QGis

Python Code to select an object and return his attributes

[...]
def canvasPressEvent(self, event):
found_features = self.identify(event.x(), event.y(), [self.layer], QgsMapToolIdentify.TopDownAll)
for a in found_features:
    print (a.mFeature.id(),a.mFeature.attributes())

Output

13 ['doc_1658386642','m4a',NULL, PyQt5.QtCore.QDateTime(2022,7,21,8,57,28,595),NULL] 24 ['doc_1672838277',NULL,'Dies ist eine Notiz',PyQt5.QtCore.QDateTime(2023,1,4,14,23,50,17),NULL]

Same Objects viewn in pgAdmin

Id [PK] uuid type var char name var char note var char geom geometry lastModified timestamp orientation integer
"017ee6fe-4fb0-4761-a2f1-eb9e6b9f19ad" "m4a" "doc_1658386642" "0101000020E6100000CCF6F48C0D3B22403A3CFF610BAA4A40" "2022-07-21 06:57:28.595+00"
"2caaaa38-e140-4a7c-b3a6-8383c60fc07b" "doc_1672838277" "Dies ist eine Notiz" "0101000020E61000000965EA8BEA3A2240AC84C562D6A94A40" "2023-01-04 13:23:50.017701+00"

I would like to get the id [PK, uuid] of these objects for example (017ee6fe-4fb0-4761-a2f1-eb9e6b9f19ad) - any suggestions? is it even possible?



source https://stackoverflow.com/questions/75339423/get-primary-key-value-from-object-in-qgis
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