Multiple Forms and Formsets in CreateView

I have 2 models, Father and Son.

I have a page to register Father. On the same page I have a formset to register Son.

On page has a button "more" to add another Father and their respective Son on the same page.

Does anyone have any examples using CreateView?

Class based views are still new, so I'll write this out. The process is simple:

First, create the forms for your objects. One of the forms will be repeated. Nothing special to be done here.

class SonInline(ModelForm):
    model = Son

class FatherForm(ModelForm):
    model = Father

Then, create your formset:

FatherInlineFormSet = inlineformset_factory(Father,
    Son,
    form=SonInline,
    extra=1,
    can_delete=False,
    can_order=False
)

Now, to integrate it with your CreateView:

class CreateFatherView(CreateView):
    template_name = 'father_create.html'
    model = Father
    form_class = FatherForm # the parent object's form

    # On successful form submission
    def get_success_url(self):
        return reverse('father-created')

    # Validate forms
    def form_valid(self, form):
        ctx = self.get_context_data()
        inlines = ctx['inlines']
        if inlines.is_valid() and form.is_valid():
            self.object = form.save() # saves Father and Children
            return redirect(self.get_success_url())
        else:
            return self.render_to_response(self.get_context_data(form=form))

    def form_invalid(self, form):
        return self.render_to_response(self.get_context_data(form=form))

    # We populate the context with the forms. Here I'm sending
    # the inline forms in `inlines`
    def get_context_data(self, **kwargs):
        ctx = super(CreateFatherView, self).get_context_data(**kwargs)
        if self.request.POST:
            ctx['form'] = FatherForm(self.request.POST)
            ctx['inlines'] = FatherInlineFormSet(self.request.POST)
        else:
            ctx['form'] = Father()
            ctx['inlines'] = FatherInlineFormSet()
        return ctx

Finally, here is the template:

The key part is the jquery django-dynamic-formset plugin that keeps adding new inline forms:

<form id="father-form" method="POST" enctype="multipart/form-data" action=".">
{% csrf_token %}
<div class="row">
  {% for f in form %}
    <div class="span3">{{ f.label }}<br />{{ f }}
      {% if f.errors %}
          {% for v in f.errors %}
            <br /><span style="color:red;">{{ v }}</span>
          {% endfor %}
      {% endif %}
    </div>
 {% endfor %}
</div>
<hr />
<h2>Sons:</h2>
<table class="table-striped">
 <table>
 {%  for f2 in inlines %}
   <tr id="{{ f2.prefix }}-row">
      {% for i in f2 %}
        <td>
           {{ i }}{% if i.errors %}<span style="color:red;">{{ i.errors }}</span>{% endif %}
        </td>
      {% endfor %}
   </tr>
 {% endfor %}
</table>
{{ inlines.management_form }}
<input type="submit" class="btn btn-primary" value="Go Go Gadget &rarr;">
</form>
<script type="text/javascript">
    $(function() {
        $('#father-form tr').formset({
            prefix: '{{ inlines.prefix }}'
        });
    })
</script>