def with_hashtag(collection_name, hashtag):
"""
hashtag: no '#'!
-> cursor
"""
hashtag_re = hashtags.make_re(hashtag)
q = { 'entities.hashtags.text': hashtag_re }
# TODO: return more-recent ones first. Not sure this is right!
return get_db()[collection_name].find(q).sort('id_str', pymongo.DESCENDING)
def get_imgs_from_tweets(stream_name, hashtag=None):
store.drop_coll(stream_name)
gather.only_new_tweets(stream_name)
query = {'entities.media.media_url': {'$exists': True}}
if hashtag is not None:
hashtag_re = hashtags.make_re(hashtag)
query['entities.hashtags.text'] = hashtag_re
coll = store.get_db()[stream_name]
pics = [get_pic(t)
for t in coll.find(query).sort('id_str', pymongo.DESCENDING)]
return [p for p in pics if not None]
