def reset_calendars(): """ This function, used only for testing purposes, resets the calendars list to its initial states. :return: a simple status """ # Removing all calendars and dates: with orm.db_session: # Deleting all dates and calendars Date.select().delete(bulk=True) Calendar.select().delete(bulk=True) # Creating sample calendars and dates Calendar(id=0, title="Empty calendar") c2 = Calendar(id=1, title="Sport and activities") Date(id=0, calendar=c2, date="2018-01-01", event="Go fishing") Date(id=1, calendar=c2, date="2018-01-11", event="Go surfing") Date(id=2, calendar=c2, date="2018-02-12", event="Go skying") Date(id=3, calendar=c2, date="2018-03-09", event="Go swimming") return dict(status="done")