rainbowstream/db.py

   1 import os
   2 from sqlalchemy import create_engine
   3 from sqlalchemy import update
   4 from sqlalchemy.orm import sessionmaker
   5 from .table_def import *
   6
   7
   8 class RainbowDB():
   9
  10     engine = None
  11
  12     def __init__(self):
  13         if not os.path.isfile('rainbow.db'):
  14             init_db()
  15         self.engine = create_engine('sqlite:///rainbow.db', echo=False)
  16
  17     def tweet_store(self, tweet_id):
  18         """
  19         Store tweet id
  20         """
  21         Session = sessionmaker(bind=self.engine)
  22         session = Session()
  23         t = Tweet(tweet_id)
  24         session.add(t)
  25         session.commit()
  26
  27     def rainbow_to_tweet_query(self, rid):
  28         """
  29         Query base of rainbow id
  30         """
  31         Session = sessionmaker(bind=self.engine)
  32         session = Session()
  33         res = session.query(Tweet).filter_by(rainbow_id=rid).all()
  34         return res
  35
  36     def tweet_to_rainbow_query(self, tid):
  37         """
  38         Query base of tweet id
  39         """
  40         Session = sessionmaker(bind=self.engine)
  41         session = Session()
  42         res = session.query(Tweet).filter_by(tweet_id=tid).all()
  43         return res
  44
  45     def message_store(self, message_id):
  46         """
  47         Store message id
  48         """
  49         Session = sessionmaker(bind=self.engine)
  50         session = Session()
  51         m = Message(message_id)
  52         session.add(m)
  53         session.commit()
  54
  55     def rainbow_to_message_query(self, rid):
  56         """
  57         Query base of rainbow id
  58         """
  59         Session = sessionmaker(bind=self.engine)
  60         session = Session()
  61         res = session.query(Message).filter_by(rainbow_id=rid).all()
  62         return res
  63
  64     def message_to_rainbow_query(self, mid):
  65         """
  66         Query base of message id
  67         """
  68         Session = sessionmaker(bind=self.engine)
  69         session = Session()
  70         res = session.query(Message).filter_by(message_id=mid).all()
  71         return res
  72
  73     def theme_store(self, theme_name):
  74         """
  75         Store theme
  76         """
  77         Session = sessionmaker(bind=self.engine)
  78         session = Session()
  79         th = Theme(theme_name)
  80         session.add(th)
  81         session.commit()
  82
  83     def theme_update(self, theme_name):
  84         """
  85         Update theme
  86         """
  87         Session = sessionmaker(bind=self.engine)
  88         session = Session()
  89         res = session.query(Theme).all()
  90         for r in res:
  91             r.theme_name = theme_name
  92         session.commit()
  93
  94     def theme_query(self):
  95         """
  96         Query theme
  97         """
  98         Session = sessionmaker(bind=self.engine)
  99         session = Session()
 100         res = session.query(Theme).all()
 101         return res