python - 使用 Flask 创建注册表单 - AttributeError : 'ValueError' object has no attribute 'name'

Question

这几天我一直在尝试让我的注册页面正常工作。我想我已经很接近了，但现在当我尝试从登录页面单击“注册”时，我在终端中收到以下错误消息:

文件“/home/ubuntu/workspace/pset7/finance/application.py”，第 175 行，错误处理程序

return apology(e.name, e.code)

AttributeError:“ValueError”对象没有属性“name”

这是错误指向的行中的代码(我没有编写它们，它们是随分发代码一起提供的):

def errorhandler(e):
"""Handle error"""
return apology(e.name, e.code)

任何帮助将不胜感激。我将包含我的注册功能代码，以防万一有帮助:

@app.route("/register", methods=["GET", "POST"])
def register():
    """Register user"""
    # User reached route via POST (as by submitting a form via POST)
    if request.method == "POST":

        # Ensure username was submitted
        if not request.form.get("username"):
            return apology("must provide username", 403)

        # Ensure password was submitted
        elif not request.form.get("password"):
            return apology("must provide password", 403)

        # Ensure password == confirmation
        elif request.form.get("password") != request.form.get("confirmation"):
            return apology("password and confirmation do not match", 403)

        # Ensure username is not already taken
        rows = db.execute("SELECT * FROM users WHERE username = :username",
                          username=request.form.get("username"))
        if len(rows) == 1:
            return apology("username already taken. please choose another", 403)

        # Add new user to the database
        session["user_id"] = db.execute("INSERT INTO users(username, hash) VALUES(:username, :hash)", username=request.form.get("username"), \
        hash=generate_password_hash(request.form.get("password")))

        # Redirect user to home page
        return redirect("/")

谢谢!

Answer 1

我刚刚解决了!我注意到这一点:应用程序中的错误:/register [GET] 上出现异常

看来这个错误一定与 [GET] 方面有关。我查看了代码的/login 函数，它的 block 底部有以下 else 语句:

(我将login.html更改为register.html)

# User reached route via GET (as by clicking a link or via redirect)
else:
    return render_template("register.html")

我猜问题是我正在处理 POST 请求，而不是 GET 请求。最后的 else 语句可确保为点击链接的人呈现该页面。再次感谢您的帮助!