--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/script/iri_tweet/utils.py Tue Jan 11 11:17:17 2011 +0100
@@ -0,0 +1,240 @@
+import email.utils
+import logging
+from models import *
+import datetime
+import twitter
+import twitter_text
+
+
+def parse_date(date_str):
+ ts = email.utils.parsedate_tz(date_str)
+ return datetime.datetime(*ts[0:7])
+
+
+fields_adapter = {
+ 'stream': {
+ "tweet": {
+ "created_at" : adapt_date,
+ "coordinates" : adapt_json,
+ "place" : adapt_json,
+ "geo" : adapt_json,
+# "original_json" : adapt_json,
+ },
+ "user": {
+ "created_at" : adapt_date,
+ },
+ },
+ 'rest': {
+ "tweet" : {
+ "place" : adapt_json,
+ "geo" : adapt_json,
+ "created_at" : adapt_date,
+# "original_json" : adapt_json,
+ },
+ },
+}
+
+#
+# adapt fields, return a copy of the field_dict with adapted fields
+#
+def adapt_fields(fields_dict, adapter_mapping):
+ def adapt_one_field(field, value):
+ if field in adapter_mapping and adapter_mapping[field] is not None:
+ return adapter_mapping[field](value)
+ else:
+ return value
+ return dict([(str(k),adapt_one_field(k,v)) for k,v in fields_dict.items()])
+
+def get_user(user_dict, session):
+
+ logging.debug("Get user : " + repr(user_dict))
+
+ user_id = user_dict.get("id",None)
+ user_name = user_dict.get("screen_name", user_dict.get("name", None))
+
+ if user_id is None and user_name is None:
+ return None
+
+ if user_id:
+ user = session.query(User).filter(User.id == user_id).first()
+ else:
+ user = session.query(User).filter(User.screen_name == user_name).first()
+
+ if user is not None:
+ return user
+
+ user_created_at = user_dict.get("created_at", None)
+
+ if user_created_at is None:
+ t = twitter.Twitter(auth=twitter.OAuth(ACCESS_TOKEN_KEY, ACCESS_TOKEN_SECRET, CONSUMER_KEY, CONSUMER_SECRET))
+ try:
+ if user_id:
+ user_dict = t.users.show(user_id=user_id)
+ else:
+ user_dict = t.users.show(screen_name=user_name)
+ except Exception as e:
+ logging.info("get_user : TWITTER ERROR : " + repr(e))
+ logging.info("get_user : TWITTER ERROR : " + str(e))
+
+ user_dict = adapt_fields(user_dict, fields_adapter["stream"]["user"])
+ if "id" not in user_dict:
+ return None
+
+ user = User(**user_dict)
+
+ session.add(user)
+ session.flush()
+
+ return user
+ # if not, if needed get info from twitter
+ # create user
+ # return it
+
+def process_entity(ind, ind_type, tweet, session):
+
+ logging.debug("Process_entity : " + repr(ind) + " : " + repr(ind_type))
+
+ entity_dict = {
+ "indice_start": ind["indices"][0],
+ "indice_end" : ind["indices"][1],
+ "tweet_id" : tweet.id,
+ "tweet" : tweet
+ }
+
+ def process_hashtags():
+ text = ind.get("text", ind.get("hashtag", None))
+ if text is None:
+ return None
+ hashtag = session.query(Hashtag).filter(Hashtag.text == text).first()
+ if not hashtag:
+ ind["text"] = text
+ hashtag = Hashtag(**ind)
+ session.add(hashtag)
+ session.flush()
+ entity_dict['hashtag'] = hashtag
+ entity_dict['hashtag_id'] = hashtag.id
+ entity = EntityHashtag(**entity_dict)
+ return entity
+
+ def process_user_mentions():
+ user_mention = get_user(ind, session)
+ if user_mention is None:
+ entity_dict['user'] = None
+ entity_dict['user_id'] = None
+ else:
+ entity_dict['user'] = user_mention
+ entity_dict['user_id'] = user_mention.id
+ entity = EntityUser(**entity_dict)
+ return entity
+
+ def process_urls():
+ url = session.query(Url).filter(Url.url == ind["url"]).first()
+ if url is None:
+ url = Url(**ind)
+ session.add(url)
+ session.flush()
+ entity_dict['url'] = url
+ entity_dict['url_id'] = url.id
+ entity = EntityUrl(**entity_dict)
+ return entity
+
+ #{'': lambda }
+ entity = {
+ 'hashtags': process_hashtags,
+ 'user_mentions' : process_user_mentions,
+ 'urls' : process_urls
+ }[ind_type]()
+
+ logging.debug("Process_entity entity_dict: " + repr(entity_dict))
+ if entity:
+ session.add(entity)
+
+
+
+def from_twitter_rest(ts, jsontxt, session):
+
+ tweet_nb = session.query(Tweet).filter(Tweet.id == ts["id"]).count()
+ if tweet_nb > 0:
+ return
+
+ tweet_fields = {
+ 'created_at': ts["created_at"],
+ 'favorited': False,
+ 'id': ts["id"],
+ 'id_str': ts["id_str"],
+ #'in_reply_to_screen_name': ts["to_user"],
+ 'in_reply_to_user_id': ts["to_user_id"],
+ 'in_reply_to_user_id_str': ts["to_user_id_str"],
+ #'place': ts["place"],
+ 'source': ts["source"],
+ 'text': ts["text"],
+ 'truncated': False,
+ 'original_json' : jsontxt,
+ }
+
+ #user
+
+ user_fields = {
+ 'id' : ts['from_user_id'],
+ 'id_str' : ts['from_user_id_str'],
+ 'lang' : ts['iso_language_code'],
+ 'profile_image_url' : ts["profile_image_url"],
+ 'screen_name' : ts["from_user"],
+ }
+
+ user = get_user(user_fields, session)
+ if user is None:
+ log.warning("USER not found " + repr(user_fields))
+ tweet_fields["user"] = None
+ tweet_fields["user_id"] = None
+ else:
+ tweet_fields["user"] = user
+ tweet_fields["user_id"] = user.id
+
+ tweet_fields = adapt_fields(tweet_fields, fields_adapter["rest"]["tweet"])
+ tweet = Tweet(**tweet_fields)
+ session.add(tweet)
+
+ text = tweet.text
+
+ extractor = twitter_text.Extractor(text)
+
+ for ind in extractor.extract_hashtags_with_indices():
+ process_entity(ind, "hashtags", tweet, session)
+
+ for ind in extractor.extract_mentioned_screen_names_with_indices():
+ process_entity(ind, "user_mentions", tweet, session)
+
+ for ind in extractor.extract_urls_with_indices():
+ process_entity(ind, "urls", tweet, session)
+
+
+
+
+def from_twitter_stream(ts, jsontxt, session):
+
+ tweet_nb = session.query(Tweet).filter(Tweet.id == ts["id"]).count()
+ if tweet_nb > 0:
+ return
+
+ ts_copy = adapt_fields(ts, fields_adapter["stream"]["tweet"])
+
+ # get or create user
+ user = get_user(ts["user"], session)
+ if user is None:
+ log.warning("USER not found " + repr(ts["user"]))
+ ts_copy["user"] = None
+ ts_copy["user_id"] = None
+ else:
+ ts_copy["user"] = user
+ ts_copy["user_id"] = ts_copy["user"].id
+ ts_copy["original_json"] = jsontxt
+
+ tweet = Tweet(**ts_copy)
+ session.add(tweet)
+ session.flush()
+
+ # get entities
+ for ind_type, entity_list in ts["entities"].items():
+ for ind in entity_list:
+ process_entity(ind, ind_type, tweet, session)