How do we harmonize custom Association data with a new standard feature?

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Yes, if I understood correctly. Here is the script (witnesses.script):

[Gramps SuperTool script file]
version=1

[title]
witnesses

[description]

[category]
Families

[initial_statements]
@include witnesses.py

[statements]
move_witness()

[filter]

[expressions]

[scope]
selected

[unwind_lists]
False

[commit_changes]
False

[summary_only]
False

The actual code is in the separate file ‘witnesses.py’:

def move_witness():
    husband = self.father
    wedding = find_wedding_event(self)
    if not wedding:
        return
    for witnessref in husband.obj.get_person_ref_list():
        witness = db.get_person_from_handle(witnessref.ref)
        evref = EventRef()
        evref.set_role(EventRoleType.WITNESS) 
        evref.ref = wedding.handle
        witness.add_event_ref(evref)
        db.commit_person(witness, trans)
    husband.obj.set_person_ref_list([]) # delete all associations
    db.commit_person(husband.obj, trans)
        

def find_wedding_event(fam):
    for event in fam.events:
        if event.type == 'Marriage':
            return event
    return None

This code will always process ALL associations for the husband/groom (and delete them). So if there are other kinds of associations then the code must be amended.

The code will also do nothing if there is no marriage event.

The script should be run in the Families view. By default it only processes selected families.

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