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proverbaro.py
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proverbaro.py
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# -*- coding: utf-8 -*-
# from sqlalchemy import Column, Integer, Unicode, DateTime, Date, ForeignKey
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import Session # , relationship
from sqlalchemy import create_engine
from sqlite3 import dbapi2 as sqlite
from birdy.twitter import UserClient
from model import init_model
import datetime
import sys
import traceback
import logging
e = create_engine(
'sqlite+pysqlite:///proverbaro.db',
module=sqlite,
encoding="utf-8",
)
logger = logging.getLogger(__name__)
Base = declarative_base()
repository = init_model(Base)
class TwitterPublisher(object):
def __init__(
self, consumer_key, consumer_secret, access_token,
access_token_key, hashtag):
self.consumer_key = consumer_key
self.consumer_secret = consumer_secret
self.access_token = access_token
self.access_token_key = access_token_key
self.hashtag = hashtag
def post_tweet(self, proverb):
client = UserClient(self.consumer_key, self.consumer_secret,
self.access_token, self.access_token_key)
return client.api.statuses.update.post(
status='%s #%s' % (proverb, self.hashtag))
def create_tables():
Base.metadata.create_all(e)
def fetch_delta_from_last_post():
session = Session(bind=e)
try:
lastpost = repository.fetch_last_post_date(session)
if lastpost is not None:
delta = datetime.datetime.today() - lastpost
logger.warning('Last post was %d seconds ago',
delta.total_seconds())
return delta.total_seconds()
else:
logger.warning('First run, no posts have been shown')
return None
except:
logger.exception('Exception while posting', exc_info=True)
session.rollback()
finally:
session.close()
def fetch_proverb():
session = Session(bind=e)
try:
repository.fetch_next_proverb(session)
finally:
session.close()
def show_proverb(publisher):
session = Session(bind=e)
try:
proverb = repository.fetch_next_proverb(session)
proverb.shown_times += 1
proverb.shown_last_time = datetime.datetime.now()
publisher.post_tweet(proverb.text)
session.add(repository.create_PostId(session, proverb.id))
session.commit()
logger.warning(proverb.text.encode("utf-8").rstrip())
except:
traceback.print_exc(file=sys.stdout)
logger.exception('Exception while posting', exc_info=True)
session.rollback()
finally:
session.close()
if __name__ == '__main__':
create_tables()