python - 如何在 Flask 中调用另一个 View

Question

因此，SignUp 1 函数连接到一个 html 文件，这部分一切正常，用户可以提交表单。但是，一旦验证了此表单，我想调用 SignUp2() 函数，该函数应将另一个 html 文件与表单连接起来。但是，一旦用户提交表单(在 SignUp1 函数中)，我就会收到一个错误:werkzeug.routing.BuildError: Could not build url for endpoint 'SignUp2'.

请告诉我如何从 SignUp 1 函数调用 SignUp2 函数。谢谢。

@app.route('/', methods=["GET", "POST"])
def SignUp1():
    form = UserForm()
    SchoolCode = None
    FirstName = None
    Postcode = None
    Phone = None
    ConfirmEmail = None
    Password = None
    AddLineOne = None
    AddLineTwo = None
    if form.validate_on_submit():
        first_name = form.FirstName.data
        last_name = form.LastName.data
        postcode = form.Postcode.data
        phone = form.Phone.data
        email = form.Email.data
        password = form.Password.data
        add_one = form.AddLineOne.data
        add_two = form.AddLineTwo.data
        user_id = AddUser(first_name, last_name, postcode,     phone, email, password, add_one, add_two)
        Parent_id = user_id
        SignUp2(Parent_id)
    return render_template('SignUp.html', form=form)


def SignUp2(Parent_id):
    form = Child1Form()
    c1_FirstName = None
    c1_LastName = None
    c1_Year = None
    return render_template('ChildSignUp.html', form=form)

Answer 1

您还需要为 SignUp2 提供一个路由，然后您应该重定向，而不是尝试直接调用它。

(注意，所有这些对 None 的赋值都是毫无意义的，您不会在任何地方使用任何这些变量。)

@app.route('/', methods=["GET", "POST"])
def SignUp1():
    form = UserForm()
    ...
    if form.validate_on_submit():
       ...
        return redirect(url_for('SignUp2', Parent_id=Parent_id))
    ...

@app.route('/signup2', methods=["GET", "POST"])
def SignUp2(Parent_id):
    ...