ModelChainedMultipleChoiceField allows you to add a grouped list of checkboxes, what group shows is managed by a dropdown menu associated to it with the parent_field attribute that is related to the form attribute.

To work properly you must pass the queryset associated, it will be grouped by order_fields, put the grouping attribute as first in this tuple.

From application forms.py:

  ingredients = ModelChainedMultipleChoiceField(parent_field='form_taste', order_fields=('taste', 'name'),
                                                queryset=Ingredient.objects.all(),
                                                required=False)

• make 'ALL' checkbox optional
• documentation

• from .group attribute to a dynamic field
• dynamic order_by instead of Meta ordering
• add 'ALL' checkbox utility per group
• add another example with nested inlines
• manage hidden checkbox when associated group is selected
• add the hidden group
• pass a new attribute "is_hidden"