multi_day_event.rb

Event that spans more than one day: stage races, six days, omniums MultiDayEvents represent events that occur on concurrent days, and Series and WeeklySeries subclasses represent events that do not occur on concurrent days, though this is just a convention.

Calculate start_date, end_date, and date from children. date = start_date

Cannot have a parent event

New child event should populate child event with parent data, but they don‘t