def _process_time(component):
'''
Returns a UTC-based timezone-naive datetime for the time present
in the given component. The component must have a dt element and
an optional TZID parameter.
Helper assumes the existance of a 'notices' list, a 'uid' string
and a 'default_tz_str' string (which may be empty or None).
'''
dt = component.dt
try:
# pull the datetime first -- if its UTC, we'll know immediately
if dt.tzinfo:
return component.dt.replace(tzinfo=None)
except AttributeError:
# if no timezone, it must be a regular date object. give it a time of midnight
return datetime.datetime.combine(dt,datetime.time())
# otherwise, we need to find a timezone
tz_str = component.params.get('TZID',default_tz_str)
# if couldn't find one, return the bare dt with a notice
if not tz_str:
notices.append(EventImportReport.UnavailableTimezone())
return component.dt
# we have a timezone string, try converting to UTC now. if the string is invalid, return a notice
try:
return localtoutc(component.dt,tz_str,return_naive=True)
except pytz.exceptions.UnknownTimeZoneError:
notices.append(EventImportReport.UnknownTimezone(tz_str))
return component.dt
def store_fbevent(event_info,event_image=None,
create_owners=True,
resolve_cache=None):
'''
Takes a dict of properties retreived from a Facebook Graph API call for
a page and stores a Place from the information. The following
fields in the dict are used:
- id (required)
- type (required with value 'event' or a TypeError will be thrown)
- name (required)
- start_time (required. assumed to be in EST at the moment)
- end_time (required. assumed to be in EST at the moment)
- description
- venue (dict with location values)
- location (simple string place name)
- owner (dict with stub info about organizer)
No new Event will be returned if either an identical one already
exists in the db, or a FacebookEventEntry already exists for the given
Facebook id. An INFO message is logged to note the attempt to store an
existing page as a Place.
event_image is a URL to an image to use for this event. The Facebook
event object doesn't store it's picture directly, instead it stores it
as a connection to the event. If this argument is not provided, the
live service will be queried to retreive it.
If create_owners is True, a Facebook-linked model instance will be
created for the owner.
The resolve_cache is an optional instance of a VenueResolveCache
objects. See docs for it for details.
'''
fbid = event_info.get('id')
if fbid is None:
raise TypeError("Cannot store object without 'event' type.")
# look to see if event already exists. return with it if so.
try:
event = FacebookEventRecord.objects.get(fb_id=fbid).event
outsourcing_log.info('Existing fb event found for fbid %s'%unicode(fbid))
return event
except FacebookEventRecord.DoesNotExist:
pass
# ensure this is actually an event
if event_info.get('type') != 'event':
raise TypeError("Cannot store object without 'event' type.")
ename = event_info.get('name').strip()
# need to log events that don't have names
if not ename:
outsourcing_log.warning('No name for event with fbid %s' % fbid)
event = Event(name=event_info['name'],
description=unicode(event_info.get('description','')),
url='http://www.facebook.com/%s' % fbid)
# process times
try:
dtstart_est = EST.localize(dtparser.parse(event_info.get('start_time')))
dtend_est = EST.localize(dtparser.parse(event_info.get('end_time')))
except ValueError as e:
raise ValueError('Bad start/end time for event fbid %s: %s' % (unicode(fbid),unicode(e)))
event.dtstart = localtoutc(dtstart_est,return_naive=True)
event.dtend = localtoutc(dtend_est,return_naive=True)
# process image
if event_image is None:
try:
event.image_url = facebook_client.graph_api_picture_request(fbid)
except IOError as e:
outsourcing_log.error('Error retreiving picture for event %s: %s' % (unicode(eid),unicode(e)))
else:
event.image_url = event_image
# process place
if resolve_cache:
event.place = _process_place_cache_support(event_info,
resolve_cache=resolve_cache)
else:
event.place = _process_place(event_info)
if event.place and event.place.pk is None:
if event.place.location and event.place.location.pk is None:
event.place.location.save()
event.place.save()
event.save()
# get the update time from the fbevent
dtupdate_str = event_info.get('updated_time')
if dtupdate_str:
dtupdated = dtparser.parse(event_info.get('updated_time'))
if dtupdated.tzinfo: # if a tz was part of the time string, convert to UTC (otherwise just assume UTC)
dtupdated = localtoutc(dtupdated,return_naive=True)
event.dtmodified = dtupdated
else:
dtupdated = event.dtmodified
# create a FB record
FacebookEventRecord.objects.create(fb_id=fbid,event=event,last_updated=dtupdated)
# add event categories as EventMeta objects
categorize.add_event_oldtypes(event)
# now set the event owner
fbowner_id = event_info.get('owner',{}).get('id')
if fbowner_id:
owner = _get_owner(fbowner_id,create_new=create_owners)
if owner:
role = Role.objects.create(role_type='host',
organization=owner,
event=event)
return event
def store_fbevent(event_info,
event_image=None,
create_owners=True,
resolve_cache=None):
'''
Takes a dict of properties retreived from a Facebook Graph API call for
a page and stores a Place from the information. The following
fields in the dict are used:
- id (required)
- type (required with value 'event' or a TypeError will be thrown)
- name (required)
- start_time (required. assumed to be in EST at the moment)
- end_time (required. assumed to be in EST at the moment)
- description
- venue (dict with location values)
- location (simple string place name)
- owner (dict with stub info about organizer)
No new Event will be returned if either an identical one already
exists in the db, or a FacebookEventEntry already exists for the given
Facebook id. An INFO message is logged to note the attempt to store an
existing page as a Place.
event_image is a URL to an image to use for this event. The Facebook
event object doesn't store it's picture directly, instead it stores it
as a connection to the event. If this argument is not provided, the
live service will be queried to retreive it.
If create_owners is True, a Facebook-linked model instance will be
created for the owner.
The resolve_cache is an optional instance of a VenueResolveCache
objects. See docs for it for details.
'''
fbid = event_info.get('id')
if fbid is None:
raise TypeError("Cannot store object without 'event' type.")
# look to see if event already exists. return with it if so.
try:
event = FacebookEventRecord.objects.get(fb_id=fbid).event
outsourcing_log.info('Existing fb event found for fbid %s' %
unicode(fbid))
return event
except FacebookEventRecord.DoesNotExist:
pass
# ensure this is actually an event
if event_info.get('type') != 'event':
raise TypeError("Cannot store object without 'event' type.")
ename = event_info.get('name').strip()
# need to log events that don't have names
if not ename:
outsourcing_log.warning('No name for event with fbid %s' % fbid)
event = Event(name=event_info['name'],
description=unicode(event_info.get('description', '')),
url='http://www.facebook.com/%s' % fbid)
# process times
try:
dtstart_est = EST.localize(dtparser.parse(
event_info.get('start_time')))
dtend_est = EST.localize(dtparser.parse(event_info.get('end_time')))
except ValueError as e:
raise ValueError('Bad start/end time for event fbid %s: %s' %
(unicode(fbid), unicode(e)))
event.dtstart = localtoutc(dtstart_est, return_naive=True)
event.dtend = localtoutc(dtend_est, return_naive=True)
# process image
if event_image is None:
try:
event.image_url = facebook_client.graph_api_picture_request(fbid)
except IOError as e:
outsourcing_log.error('Error retreiving picture for event %s: %s' %
(unicode(eid), unicode(e)))
else:
event.image_url = event_image
# process place
if resolve_cache:
event.place = _process_place_cache_support(event_info,
resolve_cache=resolve_cache)
else:
event.place = _process_place(event_info)
if event.place and event.place.pk is None:
if event.place.location and event.place.location.pk is None:
event.place.location.save()
event.place.save()
event.save()
# get the update time from the fbevent
dtupdate_str = event_info.get('updated_time')
if dtupdate_str:
dtupdated = dtparser.parse(event_info.get('updated_time'))
if dtupdated.tzinfo: # if a tz was part of the time string, convert to UTC (otherwise just assume UTC)
dtupdated = localtoutc(dtupdated, return_naive=True)
event.dtmodified = dtupdated
else:
dtupdated = event.dtmodified
# create a FB record
FacebookEventRecord.objects.create(fb_id=fbid,
event=event,
last_updated=dtupdated)
# add event categories as EventMeta objects
categorize.add_event_oldtypes(event)
# now set the event owner
fbowner_id = event_info.get('owner', {}).get('id')
if fbowner_id:
owner = _get_owner(fbowner_id, create_new=create_owners)
if owner:
role = Role.objects.create(role_type='host',
organization=owner,
event=event)
return event
