Python 如何管理django内置登录中的错误？

我对我的密码有疑问。如果帐户被禁用，并且cred无效，我会尝试重定向erros，但如果无效，我的代码会这样做，但我想发送json数据，比如

无效凭据

，但它不会从我的条件发送到任何地方

Views.py

class LoginView(View):
    def get(self, request):
        return render(request, 'login.html', { 'form':  AuthenticationForm })

    def post(self, request):
        form = AuthenticationForm(request, data=request.POST)
        if form.is_valid():
            user = authenticate(
                request,
                username=form.cleaned_data.get('username'),
                password=form.cleaned_data.get('password')
            )

            if user is not None:
                if user.is_active:
                    login(request, user)
                    return redirect('/') # home page
                else:
                    return HttpResponse("A") # account disabled
            else:
                return HttpResponse("invalid_creds")

url.py

urlpatterns = [
  path('', auth_views.LoginView.as_view(template_name='login.html'), name='login'),
  path('profile/', views.ProfileView.as_view(), name='profile'),
  path('logout/', auth_views.LogoutView.as_view(), name='logout'),

]

背景

#LOGIN_REDIRECT_URL = '/account/profile'

LOGOUT_REDIRECT_URL = '/'

html

{%csrf_令牌%}
登录表单
登录

尝试将“return HttpResponse（“invalid_creds”）”移到更高一级，以便以无效形式返回：

编辑：根据coment稍微更改了方法

def LoginView(request):
    if request.method == "POST":
        form = AuthenticationForm(request, data=request.POST)
        if form.is_valid():
            user = authenticate(
                request,
                username=form.cleaned_data.get('username'),
                password=form.cleaned_data.get('password')
            )

            if user is not None:
                if user.is_active:
                    login(request, user)
                    return redirect('/') # home page
                else:
                    return HttpResponse("A") # account disabled
        else: # this else is one level higher
                return HttpResponse("invalid_creds")

    return render(request, 'login.html', { 'form':  AuthenticationForm })

---

它保持不变。它只在login.htmlthe中重定向相同，但它似乎仅使用

{{form}

进行验证，是否有方法覆盖它？

def LoginView(request):
    if request.method == "POST":
        form = AuthenticationForm(request, data=request.POST)
        if form.is_valid():
            user = authenticate(
                request,
                username=form.cleaned_data.get('username'),
                password=form.cleaned_data.get('password')
            )

            if user is not None:
                if user.is_active:
                    login(request, user)
                    return redirect('/') # home page
                else:
                    return HttpResponse("A") # account disabled
        else: # this else is one level higher
                return HttpResponse("invalid_creds")

    return render(request, 'login.html', { 'form':  AuthenticationForm })