How to Implement Grouped Model Choice Field

The Django forms API have two field types to work with multiple options: ChoiceField and ModelChoiceField. Both use select input as the default widget and they work in a similar way, except that ModelChoiceField is designed to handle QuerySets and work with foreign key relationships. A basic implementation using a ChoiceField would be: class ExpenseForm(forms.Form): CHOICES = ( (11, 'Credit Card')