Depending on a setting,
A library staff person entering a new patron record wants the system expiration date to be automatically populated based on the patron group. A table in settings is referenced for the expiration dates.
the staff person wants the dates to be defaulted to a simple date set in settings,, i.e., +2 years, which can be overwritten when creating the new record if necessary.
Feedback from SIG discussion from 3 Feb 2021:
IF the exp date is in the past THEN calculation from today, IF exp date is in the future or today THEN calculation from given exp date