python - Django 多选字段验证

Question

问题是我的表单类中有几个多选字段，它们无法传递 view.py 中的 is_valid 方法。

Forms.py

class SearchForm(forms.Form) : 
LIMIT_OPTIONS = (('5', '5'),
                ('10', '10'),
                ('15', '15'),
                ('20', '20'))
keyword = forms.CharField(max_length=50)    
limit = forms.MultipleChoiceField(widget=forms.Select, choices=LIMIT_OPTIONS)

View.py

class IndexView(View) : 
form_class = SearchForm
template_name = 'web/index.html'
def get(self, request) :
    form = self.form_class(None)
    return render(request, self.template_name, {'form':form})

def post (self, request) : 
    form = self.form_class(request.POST)
    if form.is_valid():
        url = '****'

        keyword = form.cleaned_data['keyword']
        limit = form.cleaned_data['limit']

        userupload = {'keyword': keyword, 'limit': limit}

        response = requests.post(url, json = userupload)

        return HttpResponse(response)
    return HttpResponse('<h1>Error</h1>')

如果我将 MultipleChoiceField 更改为 CharField 则一切都很好......

我在互联网上查找，找不到任何相关答案......

注意:我不使用任何数据库或模型(以防万一它很重要)

感谢您的帮助。

Answer 1

MultipleChoiceField 的默认小部件是 SelectMultiple .

Similar to Select, but allows multiple selection: ...

您已将表单中的内容更改为 forms.Select。这就是结果。