def schedule_day_from_date(request, day_start):
"""The day-at-a-glance schedule view, with the day specfied by
a date object (including the start time of the schedule).
"""
this_year, this_week, this_day = day_start.isocalendar()
next_start = day_start + timedelta(days=1)
next_year, next_week, next_day = next_start.isocalendar()
prev_start = day_start - timedelta(days=1)
prev_year, prev_week, prev_day = prev_start.isocalendar()
term = Term.of(day_start)
schedule = None if not term else ScheduleRange.day(
day_start,
exclude_before_start=False,
exclude_after_end=False,
exclude_subsuming=False,
with_filler_timeslots=True).data
return render(
request,
'schedule/schedule-day.html',
{'day_start': day_start,
'this_year': this_year,
'this_week': this_week,
'next_start': next_start,
'next_year': next_year,
'next_week': next_week,
'next_day': next_day,
'prev_start': prev_start,
'prev_year': prev_year,
'prev_week': prev_week,
'prev_day': prev_day,
'term': term,
'schedule': schedule})
