def addEvent(self, raw_event):
# do not call the method saveDocument, instead, call this method
# add an event to the db. raw_event can either be a json or an instance of Event
if not type(raw_event) is types.DictType:
new_event = raw_event.toDict()
else:
new_event = raw_event
event_type = tool.getEventType(new_event)
if event_type == 'photos':
new_event = PhotoEvent(new_event)
else:
new_event = TweetEvent(new_event)
new_event.sortElements()
new_event = new_event.toDict()
# before adding, find if any event can be merged
region = new_event['region']
condition = ({'region.min_lat': region['min_lat'],
'region.min_lng': region['min_lng'],
'region.max_lat': region['max_lat'],
'region.max_lng': region['max_lng']})
# condition = {'region.' + k:v for k,v in region.items()}
old_events = self.getAllDocuments(condition).sort('created_time', -1)
for old_event in old_events:
end_time1 = int(new_event[event_type][0]['created_time'])
begin_time1 = int(new_event[event_type][-1]['created_time'])
end_time2 = int(old_event[event_type][0]['created_time'])
begin_time2 = int(old_event[event_type][-1]['created_time'])
time_interval = InstagramConfig.merge_time_interval
# print 'new: ',end_time1,begin_time1
# print 'old: ',end_time2,begin_time2
if end_time1 + time_interval >= begin_time2 and end_time2 + time_interval >= begin_time1:
# if can merge
if event_type == 'photos':
merged_event = PhotoEvent(old_event)
else:
merged_event = TweetEvent(old_event)
merged = merged_event.mergeWith(new_event)
if merged >= 0:
print '%d out of %d %s are merged into an old event' % (merged,
len(new_event[event_type]),
event_type)
# print old_event['_id'], new_event['_id']
if merged > 0:
self.updateDocument(merged_event)
return merged_event
# cannot merge
print 'create a new event'
super(EventInterface, self).saveDocument(new_event)
return new_event
def __init__(self, event, corpus=None, representor=None):
self._representor = representor
self._corpus = corpus
super(BaseFeature, self).__init__(tool.getEventType(event), event)
