:date: 2021-03-30 ======================= Tuesday, March 30, 2021 ======================= :class:`lino_xl.lib.phones.ContactDetail` now inherits from :class:`lino.mixins.periods.DateRange`, i.e.: - added a field :attr:`lino_xl.lib.phones.ContactDetail.start_date`. - we can now filter the contact details that are active in a given date range. TODO: - A :term:`django-admin command` to load partner details and list memberships from a text file containing email addresses (e.g. the output of mailman's :command:`list_members` command). What if there are multiple contact details with a same address? - Allow for contact details without partner: support having them in the database and provide a view to see them.