Resize fields in Django Admin

Question

Django tends to fill up horizontal space when adding or editing entries on the admin, but, in some cases, is a real waste of space, when, i.e., editing a date field, 8 chara

Answer 1

If you are working with a ForeignKey field that involves choices/options/a dropdown menu, you can override formfield_for_foreignkey in the Admin instance:

class YourNewAdmin(admin.ModelAdmin):
    ...

    def formfield_for_foreignkey(self, db_field, request, **kwargs):
        if db_field.name == 'your_fk_field':
            """ For your FK field of choice, override the dropdown style """
            kwargs["widget"] = django.forms.widgets.Select(attrs={
                'style': 'width: 250px;'
            })

        return super().formfield_for_foreignkey(db_field, request, **kwargs)

More information on this pattern here and here.