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change a widget attribute in ModelForm without define the field

Author:
jedie
Posted:
July 25, 2008
Language:
Python
Version:
.96
Tags:
newforms forms field modelform
Score:
6 (after 6 ratings)

I will change a model form widget attribute without define the complete field. Because many "meta" information are defined in the model (e.g. the help_text) and i don't want to repeat this.

I found a solution: Add/change the widget attribute in the init, see example code.

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from django import forms
from django.contrib.auth.models import User 

class UserForm(forms.ModelForm):
    def __init__(self, *args, **kwargs):
        super(UserForm, self).__init__(*args, **kwargs)

        # change a widget attribute:
        self.fields['user_permissions'].widget.attrs["size"] = 5
         
    class Meta:
        model = User 

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