python - Django 字段验证错误没有被引发

Question

我正在尝试允许用户更改密码。如果表格填写正确，则会更改。但如果不是，那么就没有警告或任何东西，我只是被重定向到同一页面。我不明白为什么，我对其他形式也使用相同的方法。

我的表格:

class PasswdForm(forms.Form):
    New_password = forms.CharField(widget=forms.PasswordInput(), label='New password', max_length=30)
    Repeat_new_password = forms.CharField(widget=forms.PasswordInput(), label='Repeat new password', max_length=30)

class Meta:
    fields = ('New_password', 'Repeat_new_password')

def clean_new_password(self):
    p1 = self.cleaned_data.get('New_password')
    print ("p1", p1)
    if len(p1) <= 6:
        print ("Password is too short. Minimum 6 symbols.")
        raise forms.ValidationError(
                ('Password is too short. Minimum 6 symbols.'))            

    return p1

我实际上可以在我的终端中看到这些打印内容。

我的网址:

url(r'^loggedin/profile/passwd/$', 'userprofile.views.user_profile_passwd'),

我的功能:

@login_required
def user_profile_passwd(request):

    args = {'full_name': request.user.username}
    args.update(csrf(request))    

    if request.method == 'POST':
        form = PasswdForm(request.POST)
        if form.is_valid():
            if form.cleaned_data['New_password'] == form.cleaned_data['Repeat_new_password']:

                user = request.user
                passw = make_password(form.cleaned_data['New_password'])
                user.password = passw                

                user.save()

            return render(request,'profile.html')

        else:
            messages.warning(request, "Your password was not changed.")
            args['form'] = PasswdForm()
            return render(request, 'passwd.html', args)
    else:
        form = PasswdForm()    

    args = {'full_name': request.user.username}
    args.update(csrf(request))

    args['form'] = PasswdForm()

    return render(request, 'passwd.html', args)

有谁知道可能出了什么问题吗？

这也是我的 html 模板中的 block :

{% block content %}

<section>
<h2>Change password:</h2>

<form action="/accounts/loggedin/profile/passwd/" method="post"autocomplete="off">{% csrf_token %}

<ul>
{{form.as_ul}}
</ul>


<input type="submit" name="submit" value="Save changes">
</form>

</section>

{% endblock %}

Answer 1

当您的表单无效时，您将向 args 分配一个新的空表单。这就是为什么你看不到错误。

if request.method == 'POST':
    form = PasswdForm(request.POST)
    if form.is_valid():
        #...
    else:
        messages.warning(request, "Your password was not changed.")
        args['form'] = form #instead of PasswdForm()
        return render(request, 'passwd.html', args)

请阅读PEP 8 ，特别是Method Names and Instance Variables 您的表单字段不应以大写字母开头。