def marshall(self, instance, **kw):
events = kw.get('events', None)
if events is None:
event_types = getattr(instance, 'event_types',
('ATEvent', 'Event'))
events = instance.contentValues(
filter={'portal_type': event_types})
events.sort()
vevents = [marshall_event_to_vevent(event) for event in events]
if not vevents:
# There were no events. iCalendar spec (RFC 2445) requires
# VCALENDAR to have at least one subcomponent. Let's create
# a fake event.
# NB Mozilla Calendar produces a 0-length file when publishing
# empty calendars. Sadly it does not then accept them
# (http://bugzilla.mozilla.org/show_bug.cgi?id=229266).
dtstamp = datetime.utcnow().strftime("%Y%m%dT%H%M%SZ")
event = VEvent()
vevents.append(event)
event.add('uid', "placeholder-%s" % dtstamp)
event.add('summary', 'Empty calendar')
dtstart = vDatetime.from_ical(dtstamp[:-1])
event.add('dtstart', dtstart)
dtstamp = vDatetime.from_ical(dtstamp)
event.add('dtstamp', dtstamp)
vcal = wrap_into_vcalendar(*vevents,
**{'title': instance.context.Title()})
return ('text/calendar', len(vcal), vcal)
def marshall(self, instance, **kw):
events = kw.get('events', None)
if events is None:
event_types = getattr(instance, 'event_types', ('ATEvent', 'Event'))
events = instance.contentValues(
filter={'portal_type':event_types})
events.sort()
vevents = [marshall_event_to_vevent(event) for event in events]
if not vevents:
# There were no events. iCalendar spec (RFC 2445) requires
# VCALENDAR to have at least one subcomponent. Let's create
# a fake event.
# NB Mozilla Calendar produces a 0-length file when publishing
# empty calendars. Sadly it does not then accept them
# (http://bugzilla.mozilla.org/show_bug.cgi?id=229266).
dtstamp = datetime.utcnow().strftime("%Y%m%dT%H%M%SZ")
event = VEvent()
vevents.append(event)
event.add('uid', "placeholder-%s" % dtstamp)
event.add('summary', 'Empty calendar')
dtstart = vDatetime.from_ical(dtstamp[:-1])
event.add('dtstart', dtstart)
dtstamp = vDatetime.from_ical(dtstamp)
event.add('dtstamp', dtstamp)
vcal = wrap_into_vcalendar(*vevents, **{'title': instance.context.Title()})
return ('text/calendar', len(vcal), vcal)
def marshall_event_to_vevent(instance):
wf = getToolByName(instance, 'portal_workflow')
dtstamp = utc_strftime(datetime.utcnow(), "%Y%m%dT%H%M%SZ")
uid_hash = abs(hash(instance))
state = wf.getInfoFor(instance, 'review_state')
status = re_status_mapping.get(state, 'TENTATIVE')
event = VEvent()
event.add('uid', generateUID(instance))
event.add('summary', instance.Title(), encode=False)
event.add('description', instance.Description(), encode=False)
if hasattr(aq_base(instance), 'getLocation'):
location = instance.getLocation()
if location:
event.add('location', location, encode=False)
if hasattr(aq_base(instance), 'Subject'):
subject = instance.Subject()
if subject:
for category in subject:
event.add('categories', category, encode=False)
if hasattr(aq_base(instance), 'event_url'):
url = instance.event_url
if callable(url):
# Ugh, it's callable in ATContentTypes.
url = url()
if url:
event.add('url', url)
event['url'].params['value'] = 'URI'
if hasattr(aq_base(instance), 'getAttendees'):
for att in instance.getAttendees():
name, email = parseaddr(att)
if not name:
name = att
email = ''
if email:
email = 'mailto:%s' % email
else:
email = 'invalid:nomail'
address = vCalAddress(email)
address.params['cn'] = name
event.add('attendee', address, encode=False)
if (hasattr(aq_base(instance), 'duration')
and instance.duration == date.resolution):
# All day event.
dtstart = vDate.from_ical(utc_strftime(instance.start_date, '%Y%m%d'))
event.add('dtstart', dtstart)
dtend = vDate.from_ical(utc_strftime(instance.end_date, '%Y%m%d'))
event.add('dtend', dtend)
else:
# Normal event
dtstart = vDatetime.from_ical(
utc_strftime(instance.start_date, '%Y%m%dT%H%M%SZ'))
event.add('dtstart', dtstart)
dtend = vDatetime.from_ical(
utc_strftime(instance.end_date, '%Y%m%dT%H%M%SZ'))
event.add('dtend', dtend)
dtstamp = vDatetime.from_ical(dtstamp)
event.add('dtstamp', dtstamp)
#event.add('status', status)
return event
def marshall_event_to_vevent(instance):
wf = getToolByName(instance, 'portal_workflow')
dtstamp = utc_strftime(datetime.utcnow(), "%Y%m%dT%H%M%SZ")
uid_hash = abs(hash(instance))
state = wf.getInfoFor(instance, 'review_state')
status = re_status_mapping.get(state, 'TENTATIVE')
event = VEvent()
event.add('uid', generateUID(instance))
event.add('summary', instance.Title(), encode=False)
event.add('description', instance.Description(), encode=False)
if hasattr(aq_base(instance), 'getLocation'):
location = instance.getLocation()
if location:
event.add('location', location, encode=False)
if hasattr(aq_base(instance), 'Subject'):
subject = instance.Subject()
if subject:
for category in subject:
event.add('categories', category, encode=False)
if hasattr(aq_base(instance), 'event_url'):
url = instance.event_url
if callable(url):
# Ugh, it's callable in ATContentTypes.
url = url()
if url:
event.add('url', url)
event['url'].params['value'] = 'URI'
if hasattr(aq_base(instance), 'getAttendees'):
for att in instance.getAttendees():
name, email = parseaddr(att)
if not name:
name = att
email = ''
if email:
email = 'mailto:%s' % email
else:
email = 'invalid:nomail'
address = vCalAddress(email)
address.params['cn'] = name
event.add('attendee', address, encode=False)
if (hasattr(aq_base(instance), 'duration') and
instance.duration == date.resolution):
# All day event.
dtstart = vDate.from_ical(
utc_strftime(instance.start_date, '%Y%m%d'))
event.add('dtstart', dtstart)
dtend = vDate.from_ical(
utc_strftime(instance.end_date, '%Y%m%d'))
event.add('dtend', dtend)
else:
# Normal event
dtstart = vDatetime.from_ical(
utc_strftime(instance.start_date, '%Y%m%dT%H%M%SZ'))
event.add('dtstart', dtstart)
dtend = vDatetime.from_ical(
utc_strftime(instance.end_date, '%Y%m%dT%H%M%SZ'))
event.add('dtend', dtend)
dtstamp = vDatetime.from_ical(dtstamp)
event.add('dtstamp', dtstamp)
#event.add('status', status)
return event