我如何在 Flask 中进行测验？

Question

我正在尝试在 Flask 中进行语言学习测验，但由于路由的执行方式，我真的很难找到有效的答案

@views.route('/question', methods=['GET','POST'])
def question():
    HorK = session.get("HorK", None)
    images = []
    lessonID = session.get("lessonChoice", None)
    quizImages = getQuizImages(lessonID, images)
    image = random.choice(quizImages)
    # this part essentially generates a random image from a set of characters and then the user has to write down the correct sound of that character
    # don't worry too much about the variables but the html page needs HorK and an image to run
    if request.method == 'POST':
        character = Character.query.filter_by(image=image).first()
        answer = request.form.get("answer")
        if answer.upper() == character.romaji:
            flash('Correct', category='success')
        else:
            flash('Incorrect', category='error')

    return render_template("question.html", HorK=HorK, image=image)

我认为问题在于，当发出 post 请求时，它会从顶部运行路由代码，因此它会选择与显示的图像不同的新图像，并根据用户的回答进行检查，这意味着用户将总是看错图像。我已经尝试了很多方法来解决这个问题，但似乎没有任何效果，有什么想法吗？

提前致谢:)

Answer 1

我不确定，但每次您的网站重新加载时它都会生成新图像。当你 POST 它会通过上面的代码。您将图像传递给渲染模板，因此请尝试让您的表单也发送您已传递给 html 文件的图像，并从请求中获取图像。您甚至无需在网站上显示任何输入字段即可做到这一点。

@views.route('/question', methods=['GET','POST'])
def question():
    HorK = session.get("HorK", None)
    images = []
    lessonID = session.get("lessonChoice", None)
    quizImages = getQuizImages(lessonID, images)
    
    # this part essentially generates a random image from a set of characters and then the user has to write down the correct sound of that character
    # don't worry too much about the variables but the html page needs HorK and an image to run
    if request.method == 'POST':
        character = Character.query.filter_by(image=request.form.get("image")).first()
        answer = request.form.get("answer")
        if answer.upper() == character.romaji:
            flash('Correct', category='success')
        else:
            flash('Incorrect', category='error')
            
    image = random.choice(quizImages)
    return render_template("question.html", HorK=HorK, image=image)

记得在你传递图片的地方添加形成不可见输入

这里是例子<input type="hidden" name="image" value="{{image}}">

我如何在 Flask 中进行测验？

How do I make a quiz in Flask?

python

post

routes

flask