def write_items(self, calendar):
"""
Write all events to the calendar
"""
for item in self.items:
event = Event() if vText(
'MEETING') in item['categories'] else Todo()
for ifield, efield in ITEM_EVENT_FIELD_MAP:
val = item.get(ifield)
if isinstance(val, list):
for list_item in val:
event.add(efield, list_item)
elif val is not None:
event.add(efield, val)
calendar.add_component(event)
def make_service_call(host, port, username, pwd, dbname, option):
def uid_generat(data):# UID generat
sha_obj = hashlib.sha1(data)
return sha_obj.hexdigest()
if host == '1' and port == '1':
sock_common = xmlrpclib.ServerProxy('http://127.0.0.1:8069/xmlrpc/common')
uid = sock_common.login(dbname, username, pwd)
sock = xmlrpclib.ServerProxy('http://127.0.0.1:8069/xmlrpc/object')
else:
sock_common = xmlrpclib.ServerProxy('http://'+host+':'+port+'/xmlrpc/common')
uid = sock_common.login(dbname, username, pwd)
sock = xmlrpclib.ServerProxy('http://'+host+':'+port+'/xmlrpc/object')
if option == "task":
task_ids = sock.execute(dbname, uid, pwd, 'crm.task', 'search',\
[('task_type', '=', 't'), ('user_id', '=', uid), ('state', '!=', 'cancel')])
task_data = sock.execute(dbname, uid, pwd, 'crm.task', 'read', task_ids,\
['name','description','start_datetime','stop_datetime',\
'priority','state','location','write_date'])
def ics_datetime(idate):
if idate:
#returns the datetime as UTC, because it is stored as it in the database
idate = idate.split('.', 1)[0]
return DT.datetime.strptime(idate,\
'%Y-%m-%d %H:%M:%S').replace(tzinfo=pytz.timezone('UTC'))
return False
cal = Calendar()
cal.add('PRODID', 'Zimbra-Calendar-Provider')
cal.add('VERSION', '2.0')
cal.add('METHOD', 'PUBLISH')
for data in task_data:
todo = Todo()
todo.add('summary', data['name'])
todo.add('description', data['description'])
if data['start_datetime']:
todo.add('DTSTART', ics_datetime(data['start_datetime']))
else:
todo.add('DTSTART', ics_datetime(data['stop_datetime']))
if data['stop_datetime']:
todo.add('DUE', ics_datetime(data['stop_datetime']))
else:
todo.add('DUE', ics_datetime(data['start_datetime']))
if data['write_date']:
todo.add('DTSTAMP', DT.datetime.strptime(data['write_date'],\
'%Y-%m-%d %H:%M:%S'))
todo.add('LAST-MODIFIED', \
DT.datetime.strptime(data['write_date'], '%Y-%m-%d %H:%M:%S'))
todo['uid'] = uid_generat('crmTask'+str(data['id']))
if data['priority'] == 'low':
todo.add('priority', 9)
elif data['priority'] == 'medium':
todo.add('priority', 5)
elif data['priority'] == 'high':
todo.add('priority', 1)
else:
todo.add('priority', 5)
if data['state'] == 'done':
todo.add('status', 'COMPLETED')
todo.add('PERCENT-COMPLETE', 100)
elif data['state'] == 'cancel':
todo.add('status', 'DEFERRED')
elif data['state'] == 'open':
todo.add('status', 'IN-PROCESS')
else:
todo.add('status', 'NEEDS-ACTION')
todo.add('PERCENT-COMPLETE', 0)
cal.add_component(todo)
return cal.to_ical()
else:
event_ids = sock.execute(dbname, uid, pwd, 'calendar.event', 'search',\
[('user_id','=',uid)])
event_data = sock.execute(dbname, uid, pwd, 'calendar.event', 'read',\
event_ids,['show_as','allday','name','description',\
'start_datetime','stop_datetime','location','write_date','start_date','stop_date'])
# 'start','stop','location','write_date'])
def ics_datetime(idate):
if idate:
#returns the datetime as UTC, because it is stored as it in the database
return DT.datetime.strptime(idate,\
'%Y-%m-%d %H:%M:%S').replace(tzinfo=pytz.timezone('UTC'))
return False
cal = Calendar()
cal.add('PRODID', 'Zimbra-Calendar-Provider')
cal.add('VERSION', '2.0')
cal.add('METHOD', 'PUBLISH')
for data in event_data:
event = Event()
if data['allday']:
event.add('CREATED', date.today())
event.add('DTSTART', DT.datetime.combine(DT.datetime.strptime(data['start_date'], '%Y-%m-%d'), DT.time.min))
event.add('DTEND', DT.datetime.combine(DT.datetime.strptime(data['stop_date'], '%Y-%m-%d'), DT.time.max))
event.add('X-MICROSOFT-CDO-ALLDAYEVENT', 'TRUE')
else:
event.add('CREATED', date.today())
event.add('DTSTART', ics_datetime(data['start_datetime']))
event.add('DTEND', ics_datetime(data['stop_datetime']))
event.add('X-MICROSOFT-CDO-ALLDAYEVENT', 'FALSE')
if data['write_date']:
event.add('DTSTAMP', DT.datetime.strptime(data['write_date'],\
'%Y-%m-%d %H:%M:%S'))
event.add('LAST-MODIFIED', \
DT.datetime.strptime(data['write_date'], '%Y-%m-%d %H:%M:%S'))
if data['show_as']:
event.add('X-MICROSOFT-CDO-INTENDEDSTATUS', data['show_as'])
event.add('UID', uid_generat('crmCalendar'+str(data['id'])))
event.add('SUMMARY', data['name'])
if data['description']:
event.add('DESCRIPTION', data['description'])
if data['location']:
event.add('LOCATION', data['location'])
cal.add_component(event)
return cal.to_ical()
def task_create(task=None, title='Task title', due=None, alarm=None, note='', sequence=0, uid=None, priority=None, next_action=None):
from uuid import uuid4
from icalendar import Calendar, Todo, Alarm
if task is not None:
title = task.name
due = task.due
alarm = task.alarm
note = task.note
sequence = task.sequence
priority = task.priority
next_action = task.next_action
if (due is not None and alarm is None):
# Should not arrive here, this should have already have been handled
alarm = due
if is_same_time(due, universe.defaulttime.due):
# Warning for day events 1800 - 1000 = 8 hours
alarm = due + universe.defaulttime.alldaydiff
else:
# Default warning of an hour
alarm = due + universe.defaulttime.diff
if (alarm is not None and due is None):
due = alarm
# alarm now defunct - just use due
cal = Calendar()
cal.add('prodid', '-//enoky//v0.1//EN')
cal.add('version', '2.0')
todo = Todo()
todo.add('summary', title)
if priority is not None:
todo.add('priority', priority)
if due is not None:
todo.add('due', due)
todo.add('dtstart', due)
todo.add('status', 'NEEDS-ACTION')
todo.add('dtstamp', universe.now)
todo.add('created', universe.now)
if uid is None:
uid = uuid4()
todo['uid'] = uid
todo.add('sequence', sequence)
notenext = note
if (next_action is not None) and (len(next_action) > 0):
if len(notenext) > 0:
notenext = notenext + '\n'
notenext = notenext + universe.next_char + ' ' + next_action.lstrip()
if len(notenext) > 0:
todo.add('description', notenext)
if alarm is not None:
valarm = Alarm()
valarm['uid'] = uuid4()
valarm.add('trigger', alarm)
# Possibly not needed. How add due date?!
valarm.add('description', 'Event reminder')
valarm.add('action', 'DISPLAY')
todo.add_component(valarm)
cal.add_component(todo)
vcal = cal.to_ical()
return vcal
def todo_add(caldav_conn, args):
## TODO: copied from calendar_add, should probably be consolidated
if args.icalendar or args.nocaldav:
niy(feature="add todo item by icalendar raw stdin data or create raw icalendar data to stdout")
if args.todo_uid:
uid = args.todo_uid
else:
uid = uuid.uuid1()
cal = Calendar()
cal.add('prodid', '-//{author_short}//{product}//{language}'.format(author_short=__author_short__, product=__product__, language=args.language))
cal.add('version', '2.0')
todo = Todo()
todo.add('dtstamp', _now())
for setarg in ('due', 'dtstart'):
if getattr(args, 'set_'+setarg):
if type(getattr(args, 'set_'+setarg)) == str:
val = dateutil.parser.parse(getattr(args, 'set_'+setarg))
else:
val = getattr(args, 'set_'+setarg)
todo.add(setarg, val)
todo.add('uid', str(uid))
todo.add('summary', ' '.join(args.summaryline))
todo.add('status', 'NEEDS-ACTION')
if args.is_child:
for t in todo_select(caldav_conn, args):
todo.add('related-to', t.instance.vtodo.uid.value)
rt = t.instance.vtodo.add('related-to')
rt.params['RELTYPE']=['CHILD']
rt.value = str(uid)
t.save()
for attr in vtodo_txt_one:
if attr == 'summary':
continue
val = getattr(args, 'set_'+attr)
if val:
todo.add(attr, val)
## TODO: this doesn't currently work quite the way we'd like it to
## work (it adds to lines to the ical, and vobject cares only
## about one of them), and if we do get it to work, we'd like to
## refactor and get the same logic in the edit-function
for attr in vtodo_txt_many:
val = getattr(args, 'set_'+attr)
if val:
vals = val.split(',')
todo.add(attr, vals)
if args.alarm is not None:
alarm = create_alarm(' '.join(args.summaryline), parse_time_delta(args.alarm))
todo.add_component(alarm)
cal.add_component(todo)
_calendar_addics(caldav_conn, cal.to_ical(), uid, args)
print("Added todo item with uid=%s" % uid)
def todo_add(caldav_conn, args):
## TODO: copied from calendar_add, should probably be consolidated
if args.icalendar or args.nocaldav:
niy(feature="add todo item by icalendar raw stdin data or create raw icalendar data to stdout")
if args.todo_uid:
uid = args.todo_uid
else:
uid = uuid.uuid1()
cal = Calendar()
cal.add(
"prodid",
"-//{author_short}//{product}//{language}".format(
author_short=__author_short__, product=__product__, language=args.language
),
)
cal.add("version", "2.0")
todo = Todo()
## TODO: what does the cryptic comment here really mean, and why was the dtstamp commented out? dtstamp is required according to the RFC.
## TODO: (cryptic old comment:) not really correct, and it breaks i.e. with google calendar
todo.add("dtstamp", datetime.now())
for arg in ("set_due", "set_dtstart"):
if getattr(args, arg):
if type(getattr(args, arg)) == str:
val = dateutil.parser.parse(getattr(args, arg))
else:
val = getattr(args, arg)
todo.add(arg, val)
todo.add("uid", str(uid))
todo.add("summary", " ".join(args.summaryline))
todo.add("status", "NEEDS-ACTION")
if args.is_child:
for t in todo_select(caldav_conn, args):
todo.add("related-to", t.instance.vtodo.uid.value)
rt = t.instance.vtodo.add("related-to")
rt.params["RELTYPE"] = ["CHILD"]
rt.value = str(uid)
t.save()
for attr in vtodo_txt_one + vtodo_txt_many:
if attr == "summary":
continue
val = getattr(args, "set_" + attr)
if val:
todo.add(attr, val)
cal.add_component(todo)
_calendar_addics(caldav_conn, cal.to_ical(), uid, args)
print("Added todo item with uid=%s" % uid)
def todo_add(caldav_conn, args):
## TODO: copied from calendar_add, should probably be consolidated
if args.icalendar or args.nocaldav:
niy(feature=
"add todo item by icalendar raw stdin data or create raw icalendar data to stdout"
)
if args.todo_uid:
uid = args.todo_uid
else:
uid = uuid.uuid1()
cal = Calendar()
cal.add(
'prodid', '-//{author_short}//{product}//{language}'.format(
author_short=__author_short__,
product=__product__,
language=args.language))
cal.add('version', '2.0')
todo = Todo()
todo.add('dtstamp', _now())
for setarg in ('due', 'dtstart'):
if getattr(args, 'set_' + setarg):
if type(getattr(args, 'set_' + setarg)) == str:
val = dateutil.parser.parse(getattr(args, 'set_' + setarg))
else:
val = getattr(args, 'set_' + setarg)
todo.add(setarg, val)
todo.add('uid', str(uid))
todo.add('summary', ' '.join(args.summaryline))
todo.add('status', 'NEEDS-ACTION')
if args.is_child:
for t in todo_select(caldav_conn, args):
todo.add('related-to', t.instance.vtodo.uid.value)
rt = t.instance.vtodo.add('related-to')
rt.params['RELTYPE'] = ['CHILD']
rt.value = str(uid)
t.save()
for attr in vtodo_txt_one:
if attr == 'summary':
continue
val = getattr(args, 'set_' + attr)
if val:
todo.add(attr, val)
## TODO: this doesn't currently work quite the way we'd like it to
## work (it adds to lines to the ical, and vobject cares only
## about one of them), and if we do get it to work, we'd like to
## refactor and get the same logic in the edit-function
for attr in vtodo_txt_many:
val = getattr(args, 'set_' + attr)
if val:
vals = val.split(',')
todo.add(attr, vals)
if args.alarm is not None:
alarm = create_alarm(' '.join(args.summaryline),
parse_time_delta(args.alarm))
todo.add_component(alarm)
cal.add_component(todo)
_calendar_addics(caldav_conn, cal.to_ical(), uid, args)
print("Added todo item with uid=%s" % uid)
def todo_add(caldav_conn, args):
## TODO: copied from calendar_add, should probably be consolidated
if args.icalendar or args.nocaldav:
niy(feature=
"add todo item by icalendar raw stdin data or create raw icalendar data to stdout"
)
if args.todo_uid:
uid = args.todo_uid
else:
uid = uuid.uuid1()
cal = Calendar()
cal.add(
'prodid', '-//{author_short}//{product}//{language}'.format(
author_short=__author_short__,
product=__product__,
language=args.language))
cal.add('version', '2.0')
todo = Todo()
## TODO: what does the cryptic comment here really mean, and why was the dtstamp commented out? dtstamp is required according to the RFC.
## TODO: (cryptic old comment:) not really correct, and it breaks i.e. with google calendar
todo.add('dtstamp', datetime.now())
for arg in ('set_due', 'set_dtstart'):
if getattr(args, arg):
if type(getattr(args, arg)) == str:
val = dateutil.parser.parse(getattr(args, arg))
else:
val = getattr(args, arg)
todo.add(arg, val)
todo.add('uid', str(uid))
todo.add('summary', ' '.join(args.summaryline))
todo.add('status', 'NEEDS-ACTION')
if args.is_child:
for t in todo_select(caldav_conn, args):
todo.add('related-to', t.instance.vtodo.uid.value)
rt = t.instance.vtodo.add('related-to')
rt.params['RELTYPE'] = ['CHILD']
rt.value = str(uid)
t.save()
for attr in vtodo_txt_one + vtodo_txt_many:
if attr == 'summary':
continue
val = getattr(args, 'set_' + attr)
if val:
todo.add(attr, val)
cal.add_component(todo)
_calendar_addics(caldav_conn, cal.to_ical(), uid, args)
print("Added todo item with uid=%s" % uid)
'E': 'EASTERLY',
}
ical_freq_hsh = {
'YEARLY': 'y',
'MONTHLY': 'm',
'WEEKLY': 'w',
'DAILY': 'd',
'HOURLY': 'h',
'MINUTELY': 'n',
# 'EASTERLY': 'e'
}
item_types = {
'*': Event(),
'-': Todo(),
'%': Journal()
}
# BEGIN:VCALENDAR
# VERSION:2.0
# PRODID:-//etm_tk 3.2.38//dgraham.us//
# BEGIN:VEVENT
# SUMMARY:Charleston Volvo Open
# DTSTART;VALUE=DATE:20190402
# UID:f42d3035fd634835a01f6193a925f32eetm
# RRULE:FREQ=DAILY;COUNT=4
# END:VEVENT
# END:VCALENDAR
def create_calendar_feed(user, secret):
if True: #try:
# check access
enabled = frappe.db.get_value("Calendar Feed Settings",
"Calendar Feed Settings", "enabled")
if float(enabled) == 0:
return
erp_secret = frappe.db.get_value("Calendar Feed Settings",
"Calendar Feed Settings", "secret")
if not secret == erp_secret:
return
# initialise calendar
cal = Calendar()
# set properties
cal.add('prodid', '-//finkzeit//libracore//')
cal.add('version', '2.0')
# get data for public events
show_public_events = frappe.db.get_value("Calendar Feed Settings",
"Calendar Feed Settings",
"show_public_events")
if float(show_public_events) == 1:
sql_query = """SELECT `subject`, `starts_on`, `ends_on`, `modified`, `description`
FROM `tabEvent`
WHERE `event_type` = 'Public'"""
events = frappe.db.sql(sql_query, as_dict=True)
# add events
for erp_event in events:
event = Event()
event.add('summary', erp_event['subject'])
event.add('dtstart', erp_event['starts_on'])
if erp_event['ends_on']:
event.add('dtend', erp_event['ends_on'])
event.add('dtstamp', erp_event['modified'])
event.add('description', erp_event['description'])
# add to calendar
cal.add_component(event)
# get data for personal events
sql_query = """SELECT `subject`, `starts_on`, `ends_on`, `modified`, `description`
FROM `tabEvent`
WHERE `event_type` = 'Private'
AND (`owner` = '{user}' OR `modified_by` = '{user}')""".format(
user=user)
events = frappe.db.sql(sql_query, as_dict=True)
# add events
for erp_event in events:
event = Event()
event.add('summary', erp_event['subject'])
event.add('dtstart', erp_event['starts_on'])
if erp_event['ends_on']:
event.add('dtend', erp_event['ends_on'])
event.add('dtstamp', erp_event['modified'])
event.add('description', erp_event['description'])
# add to calendar
cal.add_component(event)
# get data for personal todo's
sql_query = """SELECT
IFNULL(`reference_type`, '-') AS `reference_type`,
IFNULL(`reference_name`, '-') AS `reference_name`,
`description`,
`modified`,
`date`
FROM `tabToDo`
WHERE `status` = 'Open'
AND (`owner` = '{user}' OR `modified_by` = '{user}')""".format(
user=user)
todos = frappe.db.sql(sql_query, as_dict=True)
# add events
for erp_todo in todos:
todo = Todo()
todo.add(
'summary', "{0} {1}".format(erp_todo['reference_type'],
erp_todo['reference_name']))
todo.add('dtstamp', erp_todo['modified'])
todo.add('description', erp_todo['description'])
if erp_todo['date']:
todo.add('due', erp_todo['date'])
todo.add('status', 'Open')
# add to calendar
cal.add_component(todo)
# return calendar object
return cal
def make_todo(item: ToDoItem) -> Todo:
todo = Todo()
todo['uid'] = item.id
todo['summary'] = item.title
todo['status'] = "Completed" if item.completed else "In Progress"
return todo
def TodoFromJSON(cal, data):
tz = pytz.timezone("Europe/Budapest")
if 'dynalist_info' in data:
if data['note'] == '':
description = data['dynalist_info']
else:
description = data['note'] + '\n' + data['dynalist_info']
else:
description = data['note']
duedate = data['date'].replace('-', '')
time = data['time'].replace(':', '')
if not duedate == '':
Y = int(duedate[:4])
m = int(duedate[4:6])
D = int(duedate[6:8])
if not time == '':
H = int(time[:2])
M = int(time[2:4])
if cal is None:
cal = Calendar()
cal.add('prodid', '-//Dynatask//')
cal.add('version', '2.0')
todo = Todo()
if 'dynalist_id' in data:
todo.add('uid', data['caldav_uid'])
todo.add('X-DYNATASK-DYNALISTID', data['dynalist_id'])
elif 'caldav_uid' in data:
todo.add('uid', data['caldav_uid'])
todo.add('summary', data['name'])
now = datetime.now(pytz.utc)
todo.add('dtstamp', now)
todo.add('created', now)
todo.add('last-modified', now)
if not duedate == '':
if not time == '':
todo.add('due', datetime(Y, m, D, H, M, tzinfo=tz))
else:
todo.add('due', datetime(Y, m, D).date())
todo.add('description', description)
if 'checked' in data:
if data['checked']:
todo.add('status', 'COMPLETED')
todo.add('completed', datetime.now(pytz.utc))
todo.add('percent-complete', '100')
else:
todo.add('status', 'NEEDS-ACTION')
todo.add('percent-complete', '0')
if 'caldav_parent' in data:
todo.add('related-to', data['caldav_parent'])
if 'alarm' in data and not data['alarm'] == '':
alarm = Alarm()
alarm.add('action', 'DISPLAY')
alarm.add('trigger', timedelta(minutes=-int(data['alarm'])))
todo.add_component(alarm)
cal.add_component(todo)
return (cal)
def createVTODOs(task, parent=None):
todos = []
todo = Todo()
try:
todo.add('UID', str(task['id']))
except KeyError:
todo.add('UID', str(uuid.uuid1()))
try:
todo.add('dtstamp', datetime.strptime(task['createdAt'], "%Y-%m-%dT%H:%M:%S.%f%z"))
except ValueError: #Thank you for using different formats within the same field!
try:
todo.add('dtstamp', datetime.strptime(task['createdAt'], "%Y-%m-%dT%H:%M:%S%z"))
except:
logger.error('Could not parse creation date for Task {}'.format(task['id']))
quit()
todo.add('summary', task.get('title', ''))
if task.get('dueDate', None) is not None:
todo.add('DUE', datetime.strptime(task['dueDate'], "%Y-%m-%dT%H:%M:%S"))
if task['completed']:
todo.add('status', 'COMPLETED')
todo.add('PERCENT-COMPLETE', '100')
todo.add('COMPLETED', datetime.strptime(task['completedAt'], "%Y-%m-%dT%H:%M:%S.%f%z"))
todo.add('LAST-MODIFIED', datetime.strptime(task['completedAt'], "%Y-%m-%dT%H:%M:%S.%f%z"))
todo.add('COMMENT', task.get('notes', ''))
if task.get('reminders', False):
reminders = []
for reminder in task['reminders']:
try:
reminders += [datetime.strptime(reminder['remindAt'], "%Y-%m-%dT%H:%M:%S.%f%z")]
except ValueError: #Thank you for using different formats within the same file!
try:
reminders += [datetime.strptime(reminder['remindAt'], "%Y-%m-%dT%H:%M:%S%z")]
except:
logger.error('Could not parse reminder date for Task {}'.format(task['id']))
logger.debug('Task {} has {} reminders. Not supported'.format(task['id'], len(reminders)))
if task.get('comment', False):
todo.add('description', task['comment'])
if task.get('files', False):
logger.error('There are files linked!')
if parent is not None:
todo.add('RELATED-TO', parent)
todos.extend([todo])
if task.get('subtasks', False):
logger.debug('Task {} has {} subtasks'.format(task['id'], len(task['subtasks'])))
for subtask in task['subtasks']:
todos.extend(createVTODOs(subtask, parent=task['id']))
return todos
def todo_ical_export(request):
'''
Type: iCalendar
Mime: text/calendar
Ext: ics
#tpl = loader.get_template('task/todo.ics')
#response.write(tpl.render(Context({'object_list': object_list})).encode('utf-8'))
'''
user = User.objects.get(pk=request.user.id) # aka author
response = HttpResponse(mimetype='text/calendar')
response['Content-Disposition'] = '; filename=todo.ics'
cal = Calendar()
cal.add('version', '2.0')
cal.add('prodid', '-//LanSite GroupWare//eap.su//')
for object in vToDo.objects.filter(user=user):
todo = Todo()
# 1. Task
#todo['created'] = object.created
todo.add('created', object.created)
todo.add('last-modified', object.updated)
todo.add('summary', object.summary)
if (object.getstatusname()):
todo.add('status', object.getstatusname())
if (object.getrestrictionname()):
todo.add('class', object.getrestrictionname())
if (object.getcategories()):
todo.add('categories', object.getcategories())
# 2. vCal
if object.attendee:
email = object.attendee.email
if email:
todo.add('attendee', 'MAILTO:%s' % email)
email = user.email
if email:
todo.add('organizer', 'MAILTO:%s' % email)
if object.description:
todo.add('description', object.description)
if object.start_d:
if object.start_t:
todo.add('dtstart', datetime.combine(object.start_d, object.start_t))
else:
todo.add('dtstart', object.start_d)
if object.duration_d:
if object.duration_t:
todo.add('duration', timedelta(
days=object.duration_d,
hours=object.duration_t.hour,
minutes=object.duration_t.minute,
seconds=object.duration_t.second
))
else:
todo.add('duration', timedelta(days=object.duration_d))
if object.location:
todo.add('location', object.location)
if object.priority:
todo.add('priority', object.priority)
if object.URL:
todo.add('URL', object.URL)
# 3. vToDo
if object.due_d:
if object.due_t:
todo.add('due', datetime.combine(object.due_d, object.due_t))
else:
todo.add('due', object.due_d)
if object.completed:
todo.add('completed', object.completed)
if object.percent:
todo.add('percent-complete', object.percent)
cal.add_component(todo)
response.write(cal.as_string()) # .encode('utf-8')
return response