我正在尝试覆盖 django 表单工具向导表单小部件，但它只是使用标准小部件

Question

我有以下形式的

class ProviderSignUp1(forms.ModelForm):
class Meta:
model = models.Provider
fields = [ 
'childcare_type_informal',
'childcare_type_accredited',
]
wigdets = {
'childcare_type_informal': PatchRadioSelect(
attrs={
'class':'form-control'
}
),
'childcare_type_accredited': PatchRadioSelect(
attrs={
'class':'form-control'
}
)
}
def clean(self):
cleaned_data = self.cleaned_data
if cleaned_data['childcare_type_informal'] == True and cleaned_data['childcare_type_accredited'] == True:
raise ValidationError("You must select only one type of childcare")
if cleaned_data['childcare_type_informal'] == False and cleaned_data['childcare_type_accredited'] == False:
raise ValidationError("You must select at least one type of childcare")
return super().clean()

小部件被定义为

from django.forms.widgets import RadioSelect
class PatchRadioSelect(RadioSelect):
template_name = 'userprofiles/form_widgets/radio.html'
option_template_name = 'userprofiles/form_widgets/radio_option.html'

我的向导是：

PROVIDER_SIGNUP_TEMPLATES = {
'page0': 'userprofiles/provider_signup_wizard/page0.html',
'page1': 'userprofiles/provider_signup_wizard/page1.html',
'page2': 'userprofiles/provider_signup_wizard/page2.html',
'page3': 'userprofiles/provider_signup_wizard/page3.html',
'page4': 'userprofiles/provider_signup_wizard/page4.html',
'page5': 'userprofiles/provider_signup_wizard/page5.html',
'page6': 'userprofiles/provider_signup_wizard/page6.html',
'page7': 'userprofiles/provider_signup_wizard/page7.html',
'page8a': 'userprofiles/provider_signup_wizard/page8.html',
'page8b': 'userprofiles/provider_signup_wizard/page8.html',
'page9': 'userprofiles/provider_signup_wizard/page9.html',
'page10': 'userprofiles/provider_signup_wizard/page10.html',
}
PROVIDER_SIGNUP_FORMS = [
("page0", forms.ProviderSignUp0),
("page1", forms.ProviderSignUp1),
("page2", forms.ProviderSignUp2),
("page3", forms.ProviderSignUp3),
("page4", forms.ProviderSignUp4),
("page5", forms.ProviderSignUp5),
("page6", forms.ProviderSignUp6),
("page7", forms.ProviderSignUp7),
("page8a", forms.ProviderSignUp8a),
("page8b", forms.ProviderSignUp8b),
("page9", forms.ProviderSignUp9),
("page10", forms.ProviderSignUp10),
]
def accredited_only_condition(wizard):
cleaned_data = wizard.get_cleaned_data_for_step('page1') or {}
return cleaned_data.get('childcare_type_accredited', True)
def informal_only_condition(wizard):
cleaned_data = wizard.get_cleaned_data_for_step('page1') or {}
return cleaned_data.get('childcare_type_informal', True)
class ProviderSignUpWizard(SessionWizardView):
form_list = PROVIDER_SIGNUP_FORMS
condition_dict = {
'page2': accredited_only_condition,
'page8a': accredited_only_condition,
'page8b': informal_only_condition,
'page9': informal_only_condition,
}
def get_form_instance(self, step):
if step == 'page4':
return self.instance_dict.get(step, self.request.user)    
return self.instance_dict.get(step, self.request.user.provider)
def get_template_names(self):
return [PROVIDER_SIGNUP_TEMPLATES[self.steps.current]]
def done(self, form_list, **kwargs):
provider_instance = models.Provider.objects.get(id=self.request.user.provider.id)
user_instance = models.User.objects.get(id=self.request.user.id)
for form in form_list:
provider_instance = construct_instance(form, provider_instance, form._meta.fields, form._meta.exclude)
user_instance = construct_instance(form, user_instance, form._meta.fields, form._meta.exclude)

provider_instance.save()
user_instance.save()
return redirect(self.request.user.get_provider_profile_url())

def post(self, *args, **kwargs):
form = self.get_form(data=self.request.POST, files=self.request.FILES)                                                      

if form.is_valid():
form.save()
if 'services' in form.cleaned_data:
models.Provider.objects.get(id=self.request.user.provider.id).services.set(form.cleaned_data['services'])
if 'features' in form.cleaned_data:
models.Provider.objects.get(id=self.request.user.provider.id).features.set(form.cleaned_data['features'])
if 'informal_phrases' in form.cleaned_data:
models.Provider.objects.get(id=self.request.user.provider.id).informal_phrases.set(form.cleaned_data['informal_phrases'])
return super().post(*args, **kwargs) 

我的小部件被忽略，而标准的小部件正在被使用。请注意，我似乎无法更改标准的任何小部件，只能向现有的小部件添加属性。我做错了什么？

Answer 1

为了防止其他人遇到同样的问题，我发现如果我在向导的第一个表单中定义__init__，那么我可以用任何需要使用的表单覆盖__init__中的小部件。但如果我不在第一个表单指定__init__，它就不起作用。

我认为这更多的是一种变通方法而非解决方案。