form.cleaned_data = {'name':{...}}的奇怪值

Question

我有一个简单的表单和一个基本如下的视图:

from annoying.decorators import ajax_request

@require_POST
@login_required
@ajax_request
def my_view(request):
    form = MyForm(request.POST)
    if form.is_valid():
        form.save(request.user)
        return {"ok": True}
    return {"ok": False, "errors": form.errors}

forms.py:

class MyForm(forms.Form):
    name = forms.CharField(max_length=250)

    def clean_name(self):
        cleaned_data = self.cleaned_data

        name = cleaned_data.get('name', '')
        if MyModel.objects.filter(name__iexact=name).exists():
            raise forms.ValidationError(_(u"This already exists."))
        return cleaned_data

    def save(self, user):
        obj, created = MyModel.objects.get_or_create(name=self.cleaned_data["name"], user=user)
        return obj

但是我在获取form.save方法中的self.cleaned_data时遇到了问题.在MyForm.clean_name我的self.cleaned_data很酷.

但在form.save级别上,self.cleaned_data = {'name':{...}}与self.cleaned_data ['name']相同.等等..还有self.cleaned_data ['name'] ['name'] ['name'] ['name'] ['name'] ... ['name'] ['name']

type(self.cleaned_data),它的关键是 dict

什么可以使我的代码表现得那样？

Answer 1

您的问题是clean_<fieldname>应该返回已清理的值,而不是整个cleaned_data字典:

def clean_name(self):
    cleaned_data = self.cleaned_data

    name = cleaned_data.get('name', '')
    if MyModel.objects.filter(name__iexact=name).exists():
        raise forms.ValidationError(_(u"This already exists."))
    return name