flask-sqlalchemy – 在错误的Flask中使用SQLAlchemy,没有这样的

if __name__ == '__main__':
    config() 
    app.run()

main.py

import database

app = Flask(__name__)

def config():
    app.config.from_object('config.DevConfig')

    # Run SQLAlchemy _that uses app.config_ and add entities if in DEBUG mode
    database.init_db(app)

    import blueprints.auth
    app.register_blueprint(blueprints.auth.auth)

database.py

db = None

def init_db(app):
    global db
    db = SQLAlchemy(app)

    from models import User,Interest,Event

    if app.config['DEBUG']:
        print 'Recreating all db'
        db.create_all() # I DO create everything
        print 'Loading test data'
        ... (here I add some Users and etc. and everything works fine - tests pass)

models.py

from database import db

class User(db.Model):
    id = db.Column(db.Integer,primary_key=True)
    username = db.Column(db.String(80),unique=True)
    email = db.Column(db.String(120),unique=True)
...

蓝图/ auth.py

from models import User

auth = Blueprint('auth',__name__)

@auth.route('/')
def index():
    return str(User.query.get(1).interests)

所以我明白了

OperationalError: (OperationalError) no such table: user u'SELECT user.id AS user_id,user.username AS user_username,user.email AS user_email,user.passhash AS user_passhash,user.vk_page AS user_vk_page nFROM user nWHERE user.id = ?' (1,)

我究竟做错了什么？