def createEvent(request):
"""
Creates a new event mapped to calendar (through attendance). If success,
returns JSON object with success = true and event ID. Otherwise, return
JSON object with success = false
@param POST + AJAX request from client
@return JSON object (success, eventID)
"""
if request.is_ajax() and request.method == 'POST':
obj = request.POST
# Read in event object
try:
title = obj['title']
location = obj.get('location', '')
allday = obj['allDay']
allday = get_boolean(allday)
# Get date and adjust timezone offsets
user_timezone = pytz.timezone(request.user.get_profile().timezone)
start_date = adjustDateStringToTimeZone(
user_timezone=user_timezone,
date_string=obj['start'],
allday=allday)
end_date = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=obj['end'],
allday=allday)
# If end date is before start date (i.e. some sort of error),
# default to 60 mins
if calendar.timegm(end_date.utctimetuple()) < calendar.timegm(
start_date.utctimetuple()):
end_date = start_date + timedelta(hours=1)
print "A newly created event has defaulted end time to 60 mins"
color = obj['color'].lower()
notes = obj.get('notes', '')
except KeyError:
message = {'success': False}
print "Error reading values from event json"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Get repeating details
try:
repeating = obj['repeating']
except KeyError:
repeating = False
if repeating:
try:
repeatStartDate = adjustDateStringToTimeZone(
user_timezone=user_timezone,
date_string=obj['repeatStartDate'],
allday=allday)
repeatEndDateRaw = obj['repeatEndDate']
if repeatEndDateRaw == "0":
repeatEndDate = None
else:
repeatEndDate = adjustDateStringToTimeZone(
user_timezone=user_timezone,
date_string=obj['repeatEndDate'],
allday=allday)
except KeyError:
message = {'success': False}
print "Error reading start and end dates of repeating event from JSON"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Save event
if repeating:
newEvent = RepeatingEvent(title=title,
location=location,
allday=allday,
repeating=True,
start_date=repeatStartDate,
end_date=repeatEndDate,
repeat_interval=repeating)
newEvent.instance_start_time = start_date.time()
newEvent.instance_length_in_min = (
calendar.timegm(end_date.utctimetuple()) -
calendar.timegm(start_date.utctimetuple())) / 60
else:
newEvent = Event(title=title,
location=location,
allday=allday,
start_date=start_date,
end_date=end_date)
newEvent.save()
# Create attendance (map event to calendar)
try:
userCalendar = request.user.calendar
except ObjectDoesNotExist:
print "Calendar doesn't exist"
message = {'success': False}
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
attendance = Attendance(calendar=userCalendar,
event=newEvent,
color=color,
notes=notes)
attendance.save()
message = {'success': True, 'eventID': newEvent.id}
else:
message = {'success': False}
return HttpResponse(simplejson.dumps(message), mimetype='application/json')
def splitRepeatingEvents(request):
"""
Split one repeating event series into two, given the JSON object from request
that indicates the old start time (i.e. repeat end date for first event series),
the new start time (i.e. repeat start date for the second event series), the
new end time (i.e. to calculate event instance length) and all day boolean (to
check whether or not the new event series has changed to allday).
This function is called when a repeating event (that is not the first instance
in the repeating series) is changed such that the user want all future events
to be changed as well
@param POST + AJAX request from client
@return JSON object (success)
"""
if request.is_ajax() and request.method == 'POST':
obj = request.POST
# Get event
try:
eventID = obj['eventID']
except KeyError:
message = {'success': False}
print "Error reading event id from event json"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
try:
newEvent = RepeatingEvent.objects.get(id=eventID)
except ObjectDoesNotExist:
message = {'success': False}
print "Event doesn't exist in database"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Get values from request object
user_timezone = pytz.timezone(request.user.get_profile().timezone)
try:
allday = obj['allDay']
allday = get_boolean(allday)
oldStart = obj['oldStart']
oldStart = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=oldStart,
allday=newEvent.allday)
newStart = obj['newStart']
newStart = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=newStart,
allday=allday)
newEnd = obj['newEnd']
newEnd = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=newEnd,
allday=allday)
except KeyError:
message = {'success': False}
print "Error reading event start dates from event json"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Get current attendance object
# TODO - do this for each user attending event
try:
userCalendar = request.user.calendar
except ObjectDoesNotExist:
print "Calendar doesn't exist"
message = {'success': False}
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
try:
attendance = Attendance.objects.get(calendar=userCalendar,
event=newEvent)
except ObjectDoesNotExist:
print "Attendance doesn't exist"
message = {'success': False}
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Create old event
if newEvent.repeating == 1:
oldRepeatEndDate = oldStart - timedelta(days=1)
elif newEvent.repeating == 2:
oldRepeatEndDate = oldStart - timedelta(days=7)
elif newEvent.repeating == 3:
oldRepeatEndDate = oldStart - timedelta(months=1)
else:
oldRepeatEndDate = oldStart - timedelta(years=1)
oldEvent = RepeatingEvent(title=newEvent.title,
location=newEvent.location,
allday=newEvent.allday,
repeating=True,
start_date=newEvent.start_date,
end_date=oldRepeatEndDate,
repeat_interval=newEvent.repeating)
oldEvent.instance_start_time = newEvent.instance_start_time
oldEvent.instance_length_in_min = newEvent.instance_length_in_min
oldEvent.save()
# Update new event
newEvent.start_date = newStart
if not newEvent.allday:
newStart.replace(hour=12, minute=0)
newEnd.replace(hour=13, minute=0)
newEvent.allday = allday
newEvent.instance_start_date = newStart.time()
newEvent.instance_length_in_min = (
calendar.timegm(newEnd.utctimetuple()) -
calendar.timegm(newStart.utctimetuple())) / 60
newEvent.save()
# Map user to old event
# TODO - do this for each user attending event
oldAttendance = Attendance(calendar=userCalendar,
event=oldEvent,
color=attendance.color,
notes=attendance.notes)
oldAttendance.save()
message = {'success': True}
else:
message = {'success': False}
return HttpResponse(simplejson.dumps(message), mimetype='application/json')
def updateEvent(request):
"""
Updates a current event and attendance dtails, given the JSON object from
request. If success, returns JSON object with success = true. Otherwise,
return JSON object with success = false
@param POST + AJAX request from client
@return JSON object (success)
"""
if request.is_ajax() and request.method == 'POST':
obj = request.POST
# Get event id
try:
eventID = obj['eventID']
except KeyError:
message = {'success': False}
print "Error reading event id from event json"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Get calendar
try:
userCalendar = request.user.calendar
except ObjectDoesNotExist:
print "Calendar doesn't exist"
message = {'success': False}
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Get event
try:
event = Event.objects.get(id=eventID)
if event.repeating:
event = event.repeatingevent
except ObjectDoesNotExist:
message = {'success': False}
print "Event doesn't exist in database"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Get attendance
try:
attendance = Attendance.objects.get(calendar=userCalendar,
event=event)
except ObjectDoesNotExist:
message = {'success': False}
print "Event doesn't exist in database"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
#TODO - exceptions, setting repeat to none (is this even possible?)
# Get all day and repeating first to update start/end times
try:
allday = obj['allDay']
event.allday = get_boolean(allday)
except KeyError:
pass
try:
repeating = obj['repeating']
if not repeating == 0:
if not event.repeating:
instance_length_in_min = (
calendar.timegm(event.end_date.utctimetuple()) -
calendar.timegm(event.start_date.utctimetuple())) / 60
event = RepeatingEvent(
event_ptr=event,
title=event.title,
location=event.location,
allday=event.allday,
instance_start_time=event.start_date.time(),
instance_length_in_min=instance_length_in_min,
repeating=True,
repeat_interval=repeating)
else:
event.repeat_interval = repeating
except KeyError:
pass
# If repeating event, update start and end times simultaneoulsy
if event.repeating:
# Assumes that if changes are being made to the times for repeating
# revents, the POST request object passes in the start and/or end
# times of the first event instance in the repeat series (since if
# it is in the middle of the series, that automatically become
# the first event in the series by "breaking off")
try:
startDateObj = obj['start']
user_timezone = \
pytz.timezone(request.user.get_profile().timezone)
instance_start_date = adjustDateStringToTimeZone(
user_timezone=user_timezone,
date_string=startDateObj,
allday=event.allday)
except KeyError:
instance_start_date = event.start_date
event.instance_start_time = instance_start_date.time()
event.start_date = instance_start_date
try:
endDateObj = obj['end']
user_timezone = \
pytz.timezone(request.user.get_profile().timezone)
instance_end_date = adjustDateStringToTimeZone(
user_timezone=user_timezone,
date_string=endDateObj,
allday=event.allday)
except KeyError:
instance_end_date = instance_start_date + timedelta(
minutes=event.instance_length_in_min)
if calendar.timegm(
instance_end_date.utctimetuple()) < calendar.timegm(
instance_start_date.utctimetuple()):
instance_end_date = instance_start_date + timedelta(hours=1)
print "A newly created event has defaulted end time to 60 mins"
event.instance_length_in_min = (
calendar.timegm(instance_end_date.utctimetuple()) -
calendar.timegm(instance_start_date.utctimetuple())) / 60
print event.start_date
print event.instance_length_in_min
# Get rest of values from reuqest object
try:
for key in obj:
if key == 'eventID':
pass
elif key == 'title':
event.title = obj['title']
elif key == 'location':
event.location = obj.get('location', '')
elif key == 'end':
if not event.repeating:
user_timezone = \
pytz.timezone(request.user.get_profile().timezone)
end_date = adjustDateStringToTimeZone(
user_timezone=user_timezone,
date_string=obj['end'],
allday=event.allday)
event.end_date = end_date
elif key == 'start':
if not event.repeating:
user_timezone = \
pytz.timezone(request.user.get_profile().timezone)
start_date = adjustDateStringToTimeZone(
user_timezone=user_timezone,
date_string=obj['start'],
allday=event.allday)
event.start_date = start_date
elif key == 'repeatStartDate':
if event.repeating:
user_timezone = \
pytz.timezone(request.user.get_profile().timezone)
repeatStartDate = adjustDateStringToTimeZone(
user_timezone=user_timezone,
date_string=obj['repeatStartDate'],
allday=event.allday)
event.start_date = repeatStartDate
elif key == 'repeatEndDate':
if event.repeating:
repeatEndDateRaw = obj['repeatEndDate']
if repeatEndDateRaw == "0":
repeatEndDate = None
else:
user_timezone = \
pytz.timezone(request.user.get_profile().timezone)
repeatEndDate = adjustDateStringToTimeZone(
user_timezone=user_timezone,
date_string=obj['repeatEndDate'],
allday=event.allday)
event.end_date = repeatEndDate
elif key == 'color':
attendance.color = obj['color'].lower()
elif key == 'notes':
attendance.notes = obj['notes']
else:
pass
except KeyError:
message = {'success': False}
print "Error reading values from event json"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
#Save
event.save()
attendance.save()
message = {'success': True}
else:
message = {'success': False}
return HttpResponse(simplejson.dumps(message), mimetype='application/json')
def createEvent(request):
"""
Creates a new event mapped to calendar (through attendance). If success,
returns JSON object with success = true and event ID. Otherwise, return
JSON object with success = false
@param POST + AJAX request from client
@return JSON object (success, eventID)
"""
if request.is_ajax() and request.method == 'POST':
obj = request.POST
# Read in event object
try:
title = obj['title']
location = obj.get('location','')
allday = obj['allDay']
allday = get_boolean(allday)
# Get date and adjust timezone offsets
user_timezone = pytz.timezone(request.user.get_profile().timezone)
start_date = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=obj['start'], allday=allday)
end_date = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=obj['end'], allday=allday)
# If end date is before start date (i.e. some sort of error),
# default to 60 mins
if calendar.timegm(end_date.utctimetuple()) < calendar.timegm(start_date.utctimetuple()):
end_date = start_date + timedelta(hours=1)
print "A newly created event has defaulted end time to 60 mins"
color = obj['color'].lower()
notes = obj.get('notes', '')
except KeyError:
message = {'success': False}
print "Error reading values from event json"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Get repeating details
try:
repeating = obj['repeating']
except KeyError:
repeating = False
if repeating:
try:
repeatStartDate = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=obj['repeatStartDate'], allday=allday)
repeatEndDateRaw = obj['repeatEndDate']
if repeatEndDateRaw == "0":
repeatEndDate = None
else:
repeatEndDate = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=obj['repeatEndDate'], allday=allday)
except KeyError:
message = {'success': False}
print "Error reading start and end dates of repeating event from JSON"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Save event
if repeating:
newEvent = RepeatingEvent(title=title, location=location,
allday=allday, repeating=True, start_date=repeatStartDate,
end_date=repeatEndDate, repeat_interval=repeating)
newEvent.instance_start_time = start_date.time()
newEvent.instance_length_in_min = (calendar.timegm(end_date.utctimetuple())
- calendar.timegm(start_date.utctimetuple()))/60
else:
newEvent = Event(title=title, location=location, allday=allday,
start_date=start_date, end_date=end_date)
newEvent.save()
# Create attendance (map event to calendar)
try:
userCalendar = request.user.calendar
except ObjectDoesNotExist:
print "Calendar doesn't exist"
message = {'success': False}
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
attendance = Attendance(calendar=userCalendar, event=newEvent,
color=color, notes=notes)
attendance.save()
message = {'success': True, 'eventID': newEvent.id}
else:
message = {'success': False}
return HttpResponse(simplejson.dumps(message), mimetype='application/json')
def splitRepeatingEvents(request):
"""
Split one repeating event series into two, given the JSON object from request
that indicates the old start time (i.e. repeat end date for first event series),
the new start time (i.e. repeat start date for the second event series), the
new end time (i.e. to calculate event instance length) and all day boolean (to
check whether or not the new event series has changed to allday).
This function is called when a repeating event (that is not the first instance
in the repeating series) is changed such that the user want all future events
to be changed as well
@param POST + AJAX request from client
@return JSON object (success)
"""
if request.is_ajax() and request.method == 'POST':
obj = request.POST
# Get event
try:
eventID = obj['eventID']
except KeyError:
message = {'success': False}
print "Error reading event id from event json"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
try:
newEvent = RepeatingEvent.objects.get(id=eventID)
except ObjectDoesNotExist:
message = {'success': False}
print "Event doesn't exist in database"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Get values from request object
user_timezone = pytz.timezone(request.user.get_profile().timezone)
try:
allday = obj['allDay']
allday = get_boolean(allday)
oldStart = obj['oldStart']
oldStart = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=oldStart, allday=newEvent.allday)
newStart = obj['newStart']
newStart = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=newStart, allday=allday)
newEnd = obj['newEnd']
newEnd = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=newEnd, allday=allday)
except KeyError:
message = {'success': False}
print "Error reading event start dates from event json"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Get current attendance object
# TODO - do this for each user attending event
try:
userCalendar = request.user.calendar
except ObjectDoesNotExist:
print "Calendar doesn't exist"
message = {'success': False}
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
try:
attendance = Attendance.objects.get(calendar=userCalendar, event=newEvent)
except ObjectDoesNotExist:
print "Attendance doesn't exist"
message = {'success': False}
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Create old event
if newEvent.repeating == 1:
oldRepeatEndDate = oldStart - timedelta(days=1)
elif newEvent.repeating == 2:
oldRepeatEndDate = oldStart - timedelta(days=7)
elif newEvent.repeating == 3:
oldRepeatEndDate = oldStart - timedelta(months=1)
else:
oldRepeatEndDate = oldStart - timedelta(years=1)
oldEvent = RepeatingEvent(title=newEvent.title, location=newEvent.location,
allday=newEvent.allday, repeating=True, start_date=newEvent.start_date,
end_date=oldRepeatEndDate, repeat_interval=newEvent.repeating)
oldEvent.instance_start_time = newEvent.instance_start_time
oldEvent.instance_length_in_min = newEvent.instance_length_in_min
oldEvent.save()
# Update new event
newEvent.start_date = newStart
if not newEvent.allday:
newStart.replace(hour=12, minute=0)
newEnd.replace(hour=13, minute=0)
newEvent.allday = allday
newEvent.instance_start_date = newStart.time()
newEvent.instance_length_in_min = (calendar.timegm(newEnd.utctimetuple())
- calendar.timegm(newStart.utctimetuple()))/60
newEvent.save()
# Map user to old event
# TODO - do this for each user attending event
oldAttendance = Attendance(calendar=userCalendar, event=oldEvent, color=attendance.color,
notes=attendance.notes)
oldAttendance.save()
message = {'success': True}
else:
message = {'success': False}
return HttpResponse(simplejson.dumps(message), mimetype='application/json')
def updateEvent(request):
"""
Updates a current event and attendance dtails, given the JSON object from
request. If success, returns JSON object with success = true. Otherwise,
return JSON object with success = false
@param POST + AJAX request from client
@return JSON object (success)
"""
if request.is_ajax() and request.method == 'POST':
obj = request.POST
# Get event id
try:
eventID = obj['eventID']
except KeyError:
message = {'success': False}
print "Error reading event id from event json"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Get calendar
try:
userCalendar = request.user.calendar
except ObjectDoesNotExist:
print "Calendar doesn't exist"
message = {'success': False}
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Get event
try:
event = Event.objects.get(id=eventID)
if event.repeating:
event = event.repeatingevent
except ObjectDoesNotExist:
message = {'success': False}
print "Event doesn't exist in database"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
# Get attendance
try:
attendance = Attendance.objects.get(calendar=userCalendar, event=event)
except ObjectDoesNotExist:
message = {'success': False}
print "Event doesn't exist in database"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
#TODO - exceptions, setting repeat to none (is this even possible?)
# Get all day and repeating first to update start/end times
try:
allday = obj['allDay']
event.allday = get_boolean(allday)
except KeyError:
pass
try:
repeating = obj['repeating']
if not repeating == 0:
if not event.repeating:
instance_length_in_min = (calendar.timegm(event.end_date.utctimetuple())
- calendar.timegm(event.start_date.utctimetuple()))/60
event = RepeatingEvent(event_ptr=event, title=event.title,
location=event.location, allday=event.allday,
instance_start_time=event.start_date.time(),
instance_length_in_min=instance_length_in_min,
repeating=True, repeat_interval=repeating)
else:
event.repeat_interval=repeating
except KeyError:
pass
# If repeating event, update start and end times simultaneoulsy
if event.repeating:
# Assumes that if changes are being made to the times for repeating
# revents, the POST request object passes in the start and/or end
# times of the first event instance in the repeat series (since if
# it is in the middle of the series, that automatically become
# the first event in the series by "breaking off")
try:
startDateObj = obj['start']
user_timezone = \
pytz.timezone(request.user.get_profile().timezone)
instance_start_date = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=startDateObj, allday=event.allday)
except KeyError:
instance_start_date = event.start_date
event.instance_start_time = instance_start_date.time()
event.start_date = instance_start_date
try:
endDateObj = obj['end']
user_timezone = \
pytz.timezone(request.user.get_profile().timezone)
instance_end_date = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=endDateObj, allday=event.allday)
except KeyError:
instance_end_date = instance_start_date + timedelta(minutes=event.instance_length_in_min)
if calendar.timegm(instance_end_date.utctimetuple()) < calendar.timegm(instance_start_date.utctimetuple()):
instance_end_date = instance_start_date + timedelta(hours=1)
print "A newly created event has defaulted end time to 60 mins"
event.instance_length_in_min = (calendar.timegm(instance_end_date.utctimetuple())
- calendar.timegm(instance_start_date.utctimetuple()))/60
print event.start_date
print event.instance_length_in_min
# Get rest of values from reuqest object
try:
for key in obj:
if key == 'eventID':
pass
elif key == 'title':
event.title = obj['title']
elif key == 'location':
event.location = obj.get('location', '')
elif key == 'end':
if not event.repeating:
user_timezone = \
pytz.timezone(request.user.get_profile().timezone)
end_date = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=obj['end'], allday=event.allday)
event.end_date = end_date
elif key == 'start':
if not event.repeating:
user_timezone = \
pytz.timezone(request.user.get_profile().timezone)
start_date = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=obj['start'], allday=event.allday)
event.start_date = start_date
elif key == 'repeatStartDate':
if event.repeating:
user_timezone = \
pytz.timezone(request.user.get_profile().timezone)
repeatStartDate = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=obj['repeatStartDate'], allday=event.allday)
event.start_date = repeatStartDate
elif key == 'repeatEndDate':
if event.repeating:
repeatEndDateRaw = obj['repeatEndDate']
if repeatEndDateRaw == "0":
repeatEndDate = None
else:
user_timezone = \
pytz.timezone(request.user.get_profile().timezone)
repeatEndDate = adjustDateStringToTimeZone(user_timezone=user_timezone,
date_string=obj['repeatEndDate'], allday=event.allday)
event.end_date = repeatEndDate
elif key == 'color':
attendance.color = obj['color'].lower()
elif key == 'notes':
attendance.notes = obj['notes']
else:
pass
except KeyError:
message = {'success': False}
print "Error reading values from event json"
return HttpResponse(simplejson.dumps(message),
mimetype='application/json')
#Save
event.save()
attendance.save()
message = {'success': True}
else:
message = {'success': False}
return HttpResponse(simplejson.dumps(message), mimetype='application/json')
