15

我有烧瓶+wtforms 应用程序。我可以在 login() 用户对象中看到存储为

  if user:
   if user.verify_password(form.password.data):
    flash('You have been logged in')
    user.logins += 1

    db.session.add(History(user.uid))
    db.session.commit()

    session['user'] = user

现在我想检索用户

if 'user' in session:
       User=session.get('user')
       print User.nickname ###<< how to retrieve specific object member?

它失败并显示如下消息：

Instance <User at 0x8e5a64c> is not bound to a Session; attribute refresh operation cannot proceed
4

2 回答 2

17

这很简单。如果您想检索特定对象，只需在会话中添加变量的名称，例如session['nickname'].

您可以以相同的方式设置变量，方法是session['nickname'] = nickname.

在您的情况下，您可以将其更改为以下

if 'user' in session:
    user = session['user']
    print user

if 'nickname' in session:
    nickname = session['nickname']
    print nickname

这是我用于登录的功能的简化版本。

@app.route('/login', methods=['POST'])
def login():
    """Authenticate User"""
    username = request.form['username'].strip()
    nickname = request.form['nickname'].strip()
    password = request.form['password']
    try:
        if Auth().VerifyLogin(username, password):
            session['username'] = username
            session['nickname'] = nickname
        else:
            # failed to login, do something.
    except Exception as why:
        app.logger.critical('.....')
于 2013-03-23T20:23:53.170 回答
0

要查看会话中的所有内容，您可以print(session)。你应该得到这样的回应

<SecureCookieSession {'_flashes': [('info', 'Duplication is not allowed ')], 'el1-s': 'Physics', 'el1grade-s': 'B2', 'el2-s': 'E-Maths', 'el2grade-s': 'A1', 'english-s': 'A1', 'mathematics-s': 'A1', 'science-s': 'A1', 'social-s': None}>

于 2022-02-17T10:51:30.200 回答