bookmark.py

from database import db, Base
from sqlalchemy import Column, String, Text
from tornado import gen
from tornado.httpclient import AsyncHTTPClient


class Bookmark(Base):
    url = Column(Text, nullable=False)
    data = Column(Text)
    
    @gen.coroutine
    def fetch_data(self):
        http = AsyncHTTPClient()
        response = yield http.fetch(self.url)
        self.data = response.body
        db.commit()