Question

我有以下功能来更改密码并显示用户个人资料，但在提交表单而不是重定向到'profile/'页面时，我收到错误The view core.views.change_password didn't return an HttpResponse object. It returned None instead.，这是为什么？

from django.contrib.auth.forms import UserChangeForm,    PasswordChangeForm
from django.contrib.auth import update_session_auth_hash

def change_password(request):
    if request.method == "POST":
        form = PasswordChangeForm(data= request.POST, user = request.user)

        if form.is_valid():
            form.save()
            update_session_auth_hash(request, form.user) #this function keeps the user logged in afte they change their password
            # request.user could not have been passed in because that would pass in 'AnonymousUser', however
            #form.user gets the user who was filling in the form and passes it to the function
            return redirect('/profile')
    else:
        form = PasswordChangeForm(user = request.user)
        args = {'form': form}  # gives access to the form in the template
        return render(request, 'core/change_password.html', args)

def view_profile(request):
    args = {'user': request.user} #
    return render(request, 'core/profile.html', args)

注意：个人资料页面适用于网站的其他部分，例如登录后，用户被重定向到他们的个人资料页面，没有任何问题。

Answer 1

您应该将最后两行移出else块。这样，当表单无效时，您将返回POST请求的响应。

def change_password(request):
    if request.method == "POST":
        form = PasswordChangeForm(data= request.POST, user = request.user)

        if form.is_valid():
            ...
            return redirect('/profile')
    else:
        form = PasswordChangeForm(user = request.user)
    args = {'form': form}  # gives access to the form in the template
    return render(request, 'core/change_password.html', args)

更改密码Django

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