瓶请求.args.get（“next”）值在登录后消失

Question

我在听米格尔先生关于烧瓶的书。 我被困在登录功能，我发送电子邮件确认给用户，然后点击链接后，它会要求用户登录，但登录后请求.args.get（'next'）变量为空，因此从不执行confirm函数。我怀疑这是由于before\u app_请求引起的。我对烧瓶很陌生，我花了两天的时间来解决这个问题。米格尔的版本很好，我的版本似乎被诅咒了。真的需要别人的意见。谢谢你的阅读。在

view.py

@auth.before_app_request
def before_request():
    print("\tREQUEST ENDPOINT ::"+str(request.endpoint))
    print("\tREQUEST ARGS ::"+str(request.args.get('next')))
    if current_user.is_authenticated \
            and not current_user.confirmed \
            and request.endpoint \
            and request.endpoint[:5] != 'auth.' \
            and request.endpoint != 'static':
        return redirect(url_for('auth.unconfirmed'))



@auth.route('/register', methods=['GET','POST'])
def register():
    form=RegForm()

    if form.validate_on_submit():

        user=User(fname=form.fname.data,
        lname=form.lname.data,
        email=form.email.data,
        organization_name=form.username.data,
        password=form.password.data)
        db.session.add(user)
        #db.session.commit()
        token=user.generate_confirmation_token()

        send_email(user.email,'Confirm your Account','email/auth/confirm',user=user,token=token)
        flash('A confirmation Email has been sent, Please check your inbox','success')
        return redirect(url_for('auth.login'))
        #except Exception as e:
        #    print("LINE 48 EMAIL: "+str(e))
        #    db.session.rollback()
    return render_template('Landing/entry.html',form=form)



@auth.route('/confirm/<token>')
@login_required
def confirm(token):
    if current_user.confirmed:
        return redirect(url_for('viewhome.home'))
    if current_user.confirm(token):
        print('\tENTERED')
        flash('Account confirmed ','success')
    else:
        flash('Invalid Link or Link has expired','Warning')
    return redirect(url_for('viewhome.home'))

@auth.route('/confirm')
@login_required
def resend_confirmation():
    token=current_user.generate_confirmation_token()
    send_email(current_user.email,'Confirm your account','email/auth/confirm',user=current_user,token=token)
    flash("A new confirmation email has been sent","success")
    return redirect(url_for('viewhome.home'))



@auth.route('/unconfirmed')
def unconfirmed():
    if current_user.is_anonymous or current_user.confirmed:
        return redirect(url_for('viewhome.home'))
    return render_template('Landing/unconfirmed.html')

@auth.route('/login',methods=['GET','POST'])
def login():
    form=LoginForm()

    if form.validate_on_submit():
        user=User.query.filter_by(email=form.email.data).first()
        if user is not None and user.verify_password(form.password.data):
            login_user(user,form.remember_me.data)
            print("REQUEST ARGS "+str(request.args.get('next')))
            return redirect(request.args.get('next') or url_for('viewhome.home'))
        flash('Invalid username or password')
    return render_template('Landing/login.html',form=form)
    #if form.validate_on_submit():
        #user=User.query.filter_by(email=form.email.data).first()
        #if user is not None and User.verify_password(form.password.data)
@auth.route('/logout')
@login_required
def logout():
    logout_user()
    flash("You have been logged out","success")
    return redirect(url_for("viewhome.home"))

users.py

^{pr2}$

Landing/Login.html

{% extends "base.html" %}
{% from "_macro.html" import render_field %}

    {% block title %}Login- Progressus Bootstrap template{% endblock title%}
{% block css %}
<link rel="stylesheet" href="{{url_for('static',filename='css/cust.css') }}" media="screen">



{{super()}}
{% endblock css %}



{% block page_content %}

<!--<header  id="head" class="secondary"></header>-->

    <!-- container -->
    <div class="container">

        <ol class="breadcrumb">
            <li><a href="index.html">Home</a></li>
            <li class="active">Registration</li>
        </ol>

        <div class="row">

            <!-- Article main content -->
            <article class="col-xs-12 maincontent">
            <header class="page-header">

                </header>

                <div class="col-md-6 col-md-offset-3 col-sm-8 col-sm-offset-2">

                    <div class="panel panel-default">
                        <div class="panel-body tabs">

                            <ul class="tab-links clearfix">
                                <li class="active"><h3 class="thin">Login</h3></a></li>
                            </ul>

                            <!--<p class="text-center text-muted">Lorem ipsum dolor sit amet, <a href="signin.html">Login</a> adipisicing elit. Quo nulla quibusdam cum doloremque incidunt nemo sunt a tenetur omnis odio. </p>
                            -->
                            <hr>

                            <div class="tab-content">

                        <div id="register-form" class="tab">
                            <form action="{{url_for('auth.login')}}" method="post" name="register">
                                {{form.csrf_token}}
                                <div class="top-margin">
                                    <label> Email</label>
                                       {{ render_field(form.email,class="form-control") }}
                                   </div>
                                   <div class="top-margin">
                                       <label>Password</label>
                                       {{ render_field(form.password,class="form-control") }}
                           </div>


                           <hr>

                           <div class="row">
                               <div class="col-lg-8">
                                <label class="checkbox">

                                       {{ form.remember_me }}
                                       Keep me logged in
                                   </label>
                               </div>
                               <div  class="col-lg-4 text-right">

                                   <!--<button class="btn btn-action" type="submit" >Register</button>-->

                                       {{ form.submit_log(class="btn btn-action") }}

                               </div>
                           </div>
                       </form>
                   </div>

                    </div>

                    </div><!-- panel body-->

                </div><!-- panel -->

            </article>
            <!-- /Article -->

        </div>
    </div>
</div>  <!-- /container -->


{% endblock page_content %}
{% block script %}
{{super()}}


{% endblock script%}

Answer 1

我没有遵循的一点是，我们不需要在表单中设置action变量，因为这本书使用了wtf快速表单选项，所以我从未注意到它

<form action="" method="Post">

Flask-login not redirecting to previous page

我在这件事上浪费了两天时间。我希望这能帮助那些在这件事上绊倒的人。在