current and next meeting

[wdbprog]

Hi,

Ive been this kind of code for a while now, to retrieve the current and next meetings of a bunch of meeting rooms in a roomlist:

#current meeting
current = FilteredItems.filter(
	start__lt=tz.localize(EWSDateTime(year, month, day,hour,minute,second)),
	end__gt=tz.localize(EWSDateTime(year, month, day,hour,minute,second)),
)
if current:
#processing

#next meeting
if not current:
	#No current meeting, just find the next one today
	 next = FilteredItems.filter(start__range=(
		tz.localize(EWSDateTime(year, month, day,hour,minute,second)),
		tz.localize(EWSDateTime(year, month, day, 23))
	  ))
else:
	#if there is a current meeting, find next one
	next = FilteredItems.filter(start__range=(
		current.end,
		tz.localize(EWSDateTime(year, month, day, 23))
	))

But now I noticed that the recurring meetings where not being displayed in this way. And I read that the calendar.view method does show these.
Now I wanna change to the calendar.view method of getting the meetings, but since the filter option does not work on this, I can't find a way how to filter this to a current and next meeting

testitems = room_account.calendar.view(
	start=tz.localize(EWSDateTime(year, month, day,1)),
	end=tz.localize(EWSDateTime(year, month, day,23)),
)

Is there an easy way to filter with the calandar.view? I tried things like adding the filter in the start & end parameters but this doesn't seem to have the same effect as the filter() function.

[ecederstrand]

EWS does not allow restrictions in combination with a calendar view, and the calendar view only accepts a start and end datetime. So you need to do the filtering client-side:

def matches_some_condition(item):
    # Return True here if the item matches your requirements
   return len(item.subject) > 17

matching_items = filter(matches_some_condition, account.calendar.view(...))

[ecederstrand]

Also, the CalendarItem element in EWS has an AdjacentMeetings field that we don't support yet (see #203). It could be helpful in your case.

[ecederstrand]

To get the current and next meeting, I would probably just fetch a healthy chunk of the calendar and check the first two items:

current_meeting, next_meeting = None, None
now = UTC_NOW()
for item in account.calendar.view(start=now, end=now + timedelta(days=7), max_items=2):
    if item.start <= now and item.end >= now:
        current_meeting = item
    else:
        next_meeting = item