Question

所以我有这两种形式。当我为其他表单检查add_uRG时，我希望能够以env_form格式访问数据。是否有可能做到这一点？我的环境形式在我的应用程序中是一种非常常见的形式，因此我希望将其保持分开，而不是将其包含在每个表单中。

class env_form(forms.Form):
            env = forms.ChoiceField(choices=ENV, required=True)

    class add_uRG(forms.Form):
            user = forms.CharField(max_length=50)
            group = forms.CharField(required=True)
            role = forms.CharField(required=True)

            def clean_user(self):
                    post_user = self.cleaned_data['user']
                    post_env = self.cleaned_data['env']
                    c = User.objects.filter(user__contains=post_user, env__contains=post_env ).count()
                    if (c == 0):
                         raise forms.ValidationError(u"User Not Found.")
                    else:
                         user_info = User.objects.filter(user__contains=post_user).values('password').distinct().count()
                         user_env = User.objects.filter(user__contains=post_user).values('env').distinct().count()
                         if not (user_env == user_info):
                            raise forms.ValidationError(u'User is using same password')
                    return(post_user)

Answer 1

您可以在验证env_form后在add_uRG表单上指定属性，或者可以将值作为参数传递给add_uRG表单。

#forms.py
class AdduRGForm(forms.Form):
    def __init__(self, *args, **kwargs):
        super(AdduRGForm, self).__init__(*args, **kwargs)
        self.env = None

#my_view.py
def my_view(request):
    env_form = env_form(request.POST or None)

    if request.POST:
        if env_form.is_valid():
            add_uRG_form = AdduRGForm(request.POST or None)
            add_uRG_form.env = env_form.cleaned_data.get('env')
            if add_uRG_form.is_valid():
                #do something else
    return render_to_response('template.html',
        {'env_form' : env_form, 'add_uRG_form' : add_uRG_form})

我不完全确定您的工作流程，因此如果这些表单不存在于同一视图中，就像您首先处理env_form，然后转到另一个视图并需要之前选择的某个值，您可以将请求传递给env_form，并在会话中设置选择，您可以使用我概述的方法在第二个表单中再次选择。

Answer 2

如果我正确地阅读了您的问题，我认为可以在此处使用表单继承。

class env_form(forms.Form):
    env = forms.ChoiceField(choices=ENV, required=True)

class add_uRG(env_form):
    user = forms.CharField(max_length=50)
    group = forms.CharField(required=True)
    role = forms.CharField(required=True)

    def clean_user(self):
        post_user = self.cleaned_data['user']
        post_env = self.cleaned_data['env']
        c = User.objects.filter(user__contains=post_user, env__contains=post_env ).count()
        if (c == 0):
            raise forms.ValidationError(u"User Not Found.")
        else:
            user_info = User.objects.filter(user__contains=post_user).values('password').distinct().count()
            user_env = User.objects.filter(user__contains=post_user).values('env').distinct().count()
            if not (user_env == user_info):
                raise forms.ValidationError(u'User is using same password')
        return(post_user)


    def __init__(self, *args, **kwargs):
        super(env_form, self).__init__(*args, **kwargs)

class SomeOtherForm(env_form):
    some_field = forms.CharField()

    def __init__(self,*args,**kwargs):
        super(env_form, self).__init__(*args,**kwargs)

使用表单B的数据验证表单A的数据

2 个答案: