humanlinks : managing family relationships

The lino_xl.lib.humanlinks module adds functionality for managing human links (i.e. relationships).

Lars

Lars Braun is the natural son of Bruno Braun and Eveline Evrard. Here is what Lars would say about them:

>>> Person = rt.models.contacts.Person
>>> Link = rt.models.humanlinks.Link
>>> lars = Person.objects.get(first_name="Lars", last_name="Braun")
>>> for lnk in Link.objects.filter(child=lars):
...    print(u"{} is my {}".format(lnk.parent,
...         lnk.type.as_parent(lnk.parent)))
Mr Bruno Braun is my Father
Mrs Eveline Evrard is my Mother

Both parents married another partner. These new households automatically did not create automatic foster parent links between Lars and the new partners of his natural parents.