Look up previous or future classes, based on the current class's id.
Usage
lookup_future_class(calendar, id, delta = 1)
lookup_past_class(calendar, id, delta = 1)
Arguments
- calendar
The calendar to use for looking up the classes.
- id
The cal_id index of the current class.
- delta
The number of classes forward or backward.
Value
A row from the calendar table.
Functions
lookup_future_class():
lookup_past_class():