python之执行 form.is_valid() 时，“WSGIRequest”对象没有属性 'get'

我正在使用 Django 2.0.1 和 Python 3.5.2

我在执行 form.is_valid() 时遇到此错误

AttributeError: 'WSGIRequest' 对象没有属性 'get'

View .py:

@method_decorator(login_required, name='dispatch') 
class CourseSelectionView(View): 
 
    def get(self, request): 
    form = CourseSelectionForm(request) 
    selected_course = SelectedCourse.objects.filter(user=request.user) 
    return render(request, 'profile/CourseSelection.html', context={ 
        'form': form, 
        'selected_course': selected_course, 
    })   
 
    def post(self, request): 
    form = CourseSelectionForm(request) 
    if form.is_valid(): 
        if not request.user.profile.can_select_this(int(self.request.POST.get('course_id'))): 
            form.errors['course_id'] = "شما قادر به اضافه کردن درس دیگری نیستید." 
            return render(request, 'profile/CourseSelection.html', context={ 
                'form': form 
            }) 
        request.user.profile.remaining_units = \ 
            request.user.profile.remaining_units - int(self.request.POST.get('course_id')) 
        return redirect(reverse_lazy('course_selection')) 

表格.py: 类 CourseSelectionForm(ModelForm):

    course_id = forms.IntegerField( 
    max_value=10000000 
    ) 
 
    class Meta: 
        model = SelectedCourse 
        fields = ('course_id',) 
 
    def clean_course_id(self): 
        course_id = self.cleaned_data.get('course_id') 
        try: 
            int(str(course_id)) 
        except ValueError: 
            raise ValidationError("Please enter a valid course") 
        return course_id 

回溯:

    Internal Server Error: /profile/course_selection 
Traceback (most recent call last): 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/core/handlers/exception.py", line 35, in inner 
    response = get_response(request) 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/core/handlers/base.py", line 128, in _get_response 
    response = self.process_exception_by_middleware(e, request) 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/core/handlers/base.py", line 126, in _get_response 
    response = wrapped_callback(request, *callback_args, **callback_kwargs) 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/views/generic/base.py", line 69, in view 
    return self.dispatch(request, *args, **kwargs) 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/utils/decorators.py", line 62, in _wrapper 
    return bound_func(*args, **kwargs) 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/contrib/auth/decorators.py", line 21, in _wrapped_view 
    return view_func(request, *args, **kwargs) 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/utils/decorators.py", line 58, in bound_func 
    return func.__get__(self, type(self))(*args2, **kwargs2) 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/views/generic/base.py", line 89, in dispatch 
    return handler(request, *args, **kwargs) 
  File "/home/heh/Projects/PycharmProjects/acsrv2/acsuser/views.py", line 97, in post 
    if form.is_valid(): 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/forms/forms.py", line 179, in is_valid 
    return self.is_bound and not self.errors 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/forms/forms.py", line 174, in errors 
    self.full_clean() 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/forms/forms.py", line 376, in full_clean 
    self._clean_fields() 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/forms/forms.py", line 388, in _clean_fields 
    value = field.widget.value_from_datadict(self.data, self.files, self.add_prefix(name)) 
  File "/home/heh/Projects/PycharmProjects/acsrv2/venv/lib/python3.5/site-packages/django/forms/widgets.py", line 254, in value_from_datadict 
    return data.get(name) 
AttributeError: 'WSGIRequest' object has no attribute 'get' 

有什么建议吗？

请您参考如下方法:

我认为你需要做

form = CourseSelectionForm(request.POST)