Django How to exclude field in a single modelForm for only updateview but not createview?

Question

i have a form class like UserForm

class UserForm(forms.ModelForm):
   email=forms.EmailField(widget=forms.EmailInput(attrs={'class':'form-control','required': True}))
   password=forms.CharField(widget=forms.PasswordInput(attrs={'class':'form-control','required': True}))

   class Meta:
       model=User
       fields=['email','password']

and 2 view CreateView and UpdateView.

class UserCreate(CreateView):
    template_name='admin/user_crud_form.html'
    form_class=UserForm

    def get_success_url(self):
        return reverse('list_user')

class UserUpdate(UpdateView):
    template_name='admin/user_crud_form.html'
    form_class=UserForm
    exclude = ('password',)

    def get_success_url(self):
        return reverse('list_user')

right now i just need to exclude password field for edit. i only change the email every time. but not password** .

but on create user i will use both. how?? this code is not excluding password field in update view. ** I DONT WANT TO USE 2 FORMS FOR CREATE AND UPDATE **

thanks in advance

I am on mobile device, hence wouldnt be able to provide a good answer right away. look into [this](https://stackoverflow.com/questions/1769403/understanding-kwargs-in-python) to understand `kwargs` — Anuj, Oct 27 '17 at 08:00
understood the concept of kwargs but dont get how to use in my scenario .. please provide an example according to my context if possible .. thanks in advance. — MD Alauddin Al-Amin, Oct 27 '17 at 08:26

score 1 · Accepted Answer · edited Nov 13 '17 at 01:30

1

You are using the model form. So, you can override the method __init__. Try below code

class UserForm(forms.ModelForm):

   def __init__(self, *args, **kwargs):
       super(UserForm,self).__init__(*args, **kwargs)
       attrs={'class':'form-control','required': True}
       if self.instance and self.instance.pk:
            self.fields.pop('password', None)
       for field in self.fields.values():
           field.widget.attrs = attrs

   class Meta:
       model=User
       fields=['email','password']

edited Nov 13 '17 at 01:30

MD Alauddin Al-Amin

94
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answered Nov 12 '17 at 16:18

anjaneyulubatta505

10,713
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you are awesome... thanks a lot. @anujaneyulu-batta. you made my day. – MD Alauddin Al-Amin Nov 12 '17 at 18:57

Django How to exclude field in a single modelForm for only updateview but not createview?

1 Answers1