Problem when EXDATEs have timezones
Reported by Rick DeNatale | May 22nd, 2009 @ 12:04 PM | in 0.0.11
It appears that having timezones on EXDATEs is preventing them from excluding occurrences.
The Icalendar data in the spec below contains an exdate for each normal occurrence of the event, so it should have no occurrences. I verified this interpretation by importing it into ical.app.
The data came from a calendar file which Paul sent which was causing a missing_method <=> on Hash. I fixed that problem, but in the process discovered this anomaly.
context "EXDATES with timezones bug" do
before(:each) do
cals = RiCal.parse_string rectify_ical <<-ENDCAL
BEGIN:VCALENDAR
METHOD:PUBLISH
PRODID:-//Apple Inc.//iCal 3.0//EN
CALSCALE:GREGORIAN
X-WR-CALNAME:Utah Cycling
X-WR-RELCALID:BF579011-36BF-49C6-8C7D-E96F03DE8055
VERSION:2.0
X-WR-TIMEZONE:US/Mountain
BEGIN:VTIMEZONE
TZID:US/Mountain
BEGIN:DAYLIGHT
TZOFFSETFROM:-0700
TZOFFSETTO:-0600
DTSTART:20070311T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
TZNAME:MDT
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0600
TZOFFSETTO:-0700
DTSTART:20071104T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
TZNAME:MST
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
SEQUENCE:11
TRANSP:OPAQUE
UID:15208112-E0FA-4A7C-954C-CFDF19D1B0E7
DTSTART;TZID=US/Mountain:20090114T163000
DTSTAMP:20090107T024340Z
SUMMARY:Wild Rose XC/Skate Training Series
EXDATE;TZID=US/Mountain:20090114T163000
EXDATE;TZID=US/Mountain:20090128T163000
EXDATE;TZID=US/Mountain:20090121T163000
EXDATE;TZID=US/Mountain:20090211T163000
EXDATE;TZID=US/Mountain:20090204T163000
EXDATE;TZID=US/Mountain:20090218T163000
CREATED:20090107T024012Z
DTEND;TZID=US/Mountain:20090114T180000
LOCATION:Mountain Dell Golf Course
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20090219T065959Z
END:VEVENT
END:VCALENDAR
ENDCAL
@event = cals.first.events.first
end
it "should have no occurrences" do
rputs @event.exdate_property
@event.occurrences.length.should == 0
end
end
The initial assumption is that the time zones are causing the problem, I am currently investigating.
Comments and changes to this ticket
-
Rick DeNatale May 23rd, 2009 @ 06:28 PM
- State changed from “new” to “resolved”
- Milestone set to “0.0.11”
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A new icalendar data (RFC 2445) gem for Ruby which supports time zones and enumeration of occurrences
Rick DeNatale