Django ModelForm override widget

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If you want to override the widget for a formfield in general, the best way is to set the widgets attribute of the ModelForm Meta class:

To specify a custom widget for a field, use the widgets attribute of the inner Meta class. This should be a dictionary mapping field names to widget classes or instances.

For example, if you want the a CharField for the name attribute of Author to be represented by a <textarea> instead of its default <input type="text">, you can override the field’s widget:

from django.forms import ModelForm, Textarea
from myapp.models import Author

class AuthorForm(ModelForm):
    class Meta:
        model = Author
        fields = ('name', 'title', 'birth_date')
        widgets = {
            'name': Textarea(attrs={'cols': 80, 'rows': 20}),
        }

The widgets dictionary accepts either widget instances (e.g., Textarea(…)) or classes (e.g., Textarea).

https://docs.djangoproject.com/en/3.2/topics/forms/modelforms/#overriding-the-default-fields

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