python - 为什么我在使用 cleaned_data 时没有得到干净的数据

Question

我正在尝试为我的站点创建一个登录表单，但是当我在我的 views.py 中使用 cleaned_data 时，我没有获得正确的数据。这是我的代码:

views.py

def login_page(request):
    form = LoginForm(request.POST or None)
    context = {
        'form': form
    }
    if form.is_valid():
        print(form.cleaned_data)
        username = form.cleaned_form.get("username")
        password = form.cleaned_form.get("password")
        user = authenticate(request, username=username, password=password)
        if user is not None:
            login(request, user)
            return redirect("/")
        else:
            print("Error")
    return render(request, "auth/login.html", context)

表单.py

class LoginForm(forms.Form):
    username = forms.CharField(
        widget=forms.TextInput(
            attrs={
                "class": "form-control",
                "placeholder": "Username"
            }
        )
    )
    password = forms.CharField(
        widget=forms.PasswordInput(
            attrs={
                "class": "form-control",
                "placeholder": "Password"
            }
         )
    )

login.html

<form action="POST">{% csrf_token %}
    {{ form }}
    <button type="submit" class="btn btn-default">Submit</button>
</form>

这是我在填写用户名和密码字段并单击提交时得到的结果。 print(form.cleaned_data) 显示 url 字段中有我想使用但无法访问的数据。

Answer 1

你的观点完全错误，用这个

def login_page(request):
   form = LoginForm(request.POST or None)
   context = {
    'form': form
   }
   if request.method == 'POST':
      if form.is_valid():
          print(form.cleaned_data)
          username = form.cleaned_data["username"]
          password = form.cleaned_data["password"]
          user = authenticate(request, username=username, password=password)
          if user is not None:
             login(request, user)
             return redirect("/")
          else:
             print("Error")
      else:
          print('form not valid')
return render(request, "auth/login.html", context)

和 html 到

<form method="post" action="">
    {% csrf_token %}
    {{ form }}
    <button type="submit" class="btn btn-default">Submit</button>
</form>