我正在尝试让一个基本的 Flask-Security 应用程序与 Flask-Migrate 一起使用。我有两个主要的 py 文件：app.py 和 db_migrate.py
应用程序.py：
from flask import Flask, render_template, request, session
from flask.ext.babel import Babel
from flask.ext.mail import Mail
from flask.ext.sqlalchemy import SQLAlchemy
from flask.ext.security import Security, SQLAlchemyUserDatastore, UserMixin, RoleMixin
import os
basedir = os.path.abspath(os.path.dirname(__file__)) #should be __ file __ with no spaces
# Create app
app = Flask(__name__)
app.config['DEBUG'] = True
app.config['SECRET_KEY'] = 'super-secret'
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + os.path.join(basedir, 'app.db')
app.config['DEFAULT_MAIL_SENDER'] = 'info@site.com'
app.config['SECURITY_REGISTERABLE'] = True
app.config['SECURITY_CONFIRMABLE'] = True
app.config['SECURITY_RECOVERABLE'] = True
app.config.from_object('config.email')
# Setup mail extension
mail = Mail(app)
# Setup babel
babel = Babel(app)
@babel.localeselector
def get_locale():
override = request.args.get('lang')
if override:
session['lang'] = override
rv = session.get('lang', 'en')
return rv
# Create database connection object
db = SQLAlchemy(app)
# Setup Flask-Security
from db_manager import User, Role #THIS IS PROBABLY WRONG!
user_datastore = SQLAlchemyUserDatastore(db, User, Role)
security = Security(app, user_datastore)
#db.create_all()
# Views
@app.route('/')
def home():
return render_template('index.html')
if __name__ == '__main__':
app.run()
db_migrate.py：
from flask import Flask
from flask.ext.sqlalchemy import SQLAlchemy
from flask.ext.script import Manager
from flask.ext.migrate import Migrate, MigrateCommand
from flask.ext.sqlalchemy import SQLAlchemy
from flask.ext.security import Security, SQLAlchemyUserDatastore, UserMixin, RoleMixin
import os
basedir = os.path.abspath(os.path.dirname(__file__))
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + os.path.join(basedir, 'app.db')
db = SQLAlchemy(app)
migrate = Migrate(app, db)
manager = Manager(app)
manager.add_command('db', MigrateCommand)
# Define models
roles_users = db.Table('roles_users',
db.Column('user_id', db.Integer(), db.ForeignKey('user.id')),
db.Column('role_id', db.Integer(), db.ForeignKey('role.id')))
class Role(db.Model, RoleMixin):
id = db.Column(db.Integer(), primary_key=True)
name = db.Column(db.String(80), unique=True)
description = db.Column(db.String(255))
class User(db.Model, UserMixin):
id = db.Column(db.Integer, primary_key=True)
email = db.Column(db.String(255), unique=True)
password = db.Column(db.String(255))
active = db.Column(db.Boolean())
confirmed_at = db.Column(db.DateTime())
favcolor = db.Column(db.String(255))
roles = db.relationship('Role', secondary=roles_users,
backref=db.backref('users', lazy='dynamic'))
def __str__(self):
return '<User id=%s email=%s>' % (self.id, self.email)
if __name__ == '__main__':
manager.run()
我已经运行了迁移工具来初始化和迁移数据库一次，以创建一个新的数据库，它起作用了：
python db_manager.py db init
python db_manager.py db migrate
我试图运行 app.py。它在 localhost 上正常运行，但是当我尝试登录用户时，我收到以下 OperationalError：
OperationalError: (OperationalError) no such table: user u'SELECT user.id AS user_id, user.email AS user_email, user.password AS user_password, user.active AS user_active, user.confirmed_at AS user_confirmed_at, user.favcolor AS user_favcolor \nFROM用户\nWHERE lower(user.email) LIKE lower(?)\n LIMIT ? 抵消 ？' (u'xxx@xxx.com', 1, 0)
基本上，我怀疑我正在创建user_datastore并且security正确，因为我可能不应该以这种方式导入User-Role但我不确定如何正确访问它们。
编辑：
由于建议，我添加了这个最终命令：
python db_manager.py db ugrade
但是，现在当我尝试通过电子邮件确认用户注册时出现此错误：
(InvalidRequestError: Object '' is already attached to session '1' (this is '3')