Django登录错误，无法登录

Question

我试图找到一个类似的问题，但我没有找到我想要的答案。我是新来的Django，我试图了解在Django身份验证，但我得到了这样的错误：

AttributeError: 'AnonymousUser' object has no attribute '_meta' 

这里是我的代码：

views.py

def login(request): 
    if request.method == "POST": 
     form = LoginForm(request.POST) 
     if form.is_valid(): 
      username = request.GET['username'] 
      password = request.GET['password'] 
      user = authenticate(username=username, password=password) 
      if user is not None: 
       login(request,user) 
       return redirect('/') 
      else: 
       error = " Sorry! Username and Password didn't match, Please try again ! " 
       return render(request, 'girl/login.html',{'error':error}) 
    else: 
     form = LoginForm() 
    return render(request, 'girl/login.html', {"form":form}) 

forms.py

class LoginForm(forms.ModelForm): 
    class Meta: 
     model = User 
     fields = ('username', 'password') 

的login.html

{% extends 'base.html' %} 

{% block content %} 
    <h1>Login</h1> 
    {% if error %} 
     {{ error }} 
    {% endif %} 
    <form method="POST"> 
     {% csrf_token %} 
     {{form.as_p}} 
     <input type="submit" value="login"> 
    </form> 
{% endblock %} 

任何帮助，将不胜感激。谢谢！

Answer 1

你只需要从forms.Form不forms.ModelForm继承，

class LoginForm(forms.Form): 
    username = forms.CharField() 
    password = forms.CharField(widget=forms.PasswordInput()) 

此外，在您的看法，编辑这样的事情，

def login(request): 
    if request.method == "POST": 
     form = LoginForm(request.POST) 
     if form.is_valid(): 
      username = form.cleaned_data['username'] 
      password = form.cleaned_data['password'] 
      user = authenticate(username=username, password=password) 
      if user is not None: 
       login(request,user) 
       return redirect('/') 
      else: 
       error = " Sorry! Username and Password didn't match, Please try again ! " 
    else: 
     form = LoginForm() 
    return render(request, 'girl/login.html', {"form":form}) 

Answer 2

您设置的密码为普通文本。像这样尝试。

def login(request): 
    if request.method == "POST": 
     form = LoginForm(request.POST) 

     if form.is_valid(): 

      # normalized data 
      username = form.cleaned_data['username'] 
      password = form.cleaned_data['password'] 

      user = authenticate(username=username, password=password) 
      if user is not None: 
       login(request,user) 
       return redirect('/') 
      else: 
       error = " Sorry! Username and Password didn't match, Please try again ! " 
       return render(request, 'girl/login.html',{'error':error}) 
    else: 
     form = LoginForm() 
    return render(request, 'girl/login.html', {"form":form})