108 lines
2.7 KiB
Python
108 lines
2.7 KiB
Python
import json
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from sqlalchemy import create_engine, Column, String, ForeignKey, Integer
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker
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from sqlalchemy.exc import IntegrityError
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engine = create_engine('sqlite:///data/qotnews.sqlite', connect_args={'timeout': 180})
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Session = sessionmaker(bind=engine)
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Base = declarative_base()
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class Story(Base):
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__tablename__ = 'stories'
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sid = Column(String(16), primary_key=True)
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ref = Column(String(16), unique=True)
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meta_json = Column(String)
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full_json = Column(String)
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title = Column(String)
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class Reflist(Base):
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__tablename__ = 'reflist'
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rid = Column(Integer, primary_key=True)
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ref = Column(String(16), unique=True)
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sid = Column(String, ForeignKey('stories.sid'), unique=True)
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source = Column(String(16))
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def init():
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Base.metadata.create_all(engine)
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def get_story(sid):
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session = Session()
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return session.query(Story).get(sid)
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def put_story(story):
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story = story.copy()
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full_json = json.dumps(story)
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story.pop('text', None)
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story.pop('comments', None)
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meta_json = json.dumps(story)
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try:
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session = Session()
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s = Story(
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sid=story['id'],
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ref=story['ref'],
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full_json=full_json,
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meta_json=meta_json,
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title=story.get('title', None),
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)
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session.merge(s)
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session.commit()
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except:
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session.rollback()
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raise
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finally:
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session.close()
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def get_story_by_ref(ref):
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session = Session()
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return session.query(Story).filter(Story.ref==ref).first()
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def get_reflist(amount):
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session = Session()
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q = session.query(Reflist).order_by(Reflist.rid.desc()).limit(amount)
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return [dict(ref=x.ref, sid=x.sid, source=x.source) for x in q.all()]
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def get_stories(amount, skip=0):
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session = Session()
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q = session.query(Reflist, Story.meta_json).\
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order_by(Reflist.rid.desc()).\
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join(Story).\
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filter(Story.title != None).\
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offset(skip).\
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limit(amount)
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return [x[1] for x in q]
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def put_ref(ref, sid, source):
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try:
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session = Session()
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r = Reflist(ref=ref, sid=sid, source=source)
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session.add(r)
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session.commit()
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except:
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session.rollback()
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raise
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finally:
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session.close()
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def del_ref(ref):
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try:
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session = Session()
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session.query(Reflist).filter(Reflist.ref==ref).delete()
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session.commit()
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except:
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session.rollback()
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raise
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finally:
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session.close()
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if __name__ == '__main__':
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init()
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print(get_story_by_ref('hgi3sy'))
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