How would I turn this function into a CBV?

[Alexander Joseph]

I found a tutorial for putting forms in modals that works but its not using CBVs and I'd rather use CBVs. Here is the function that works...

def gaas_create(request):

    form = GaasWaferDesignForm()

    context = {'form': form}

    html_form = render_to_string('engineering/gaas_wafer_designs/gaas_wafer_design_form_inner.html',

        context,

        request=request,

    )

    return JsonResponse({'html_form': html_form})

so far this is what I've tried but it doesnt work...

class GaasWaferDesignCreateView(LoginRequiredMixin, CreateView):

    fields = ("design_ui", "emitting", "contact_location", "optical_power", "design_date", "designer", "design_document", "designer_ui", "in_trash", "inactive_date", "notes")

    model = GaasWaferDesign

    template_name = 'engineering/gaas_wafer_designs/gaas_wafer_design_form_inner.html'

    form = GaasWaferDesignForm()

    context = {'form': form}

    html_form = render_to_string('engineering/gaas_wafer_designs/gaas_wafer_design_form_inner.html')

    def options(self, request, *args, **kwargs):

        response = JsonResponse({'html_form': html_form})

        return response

    def form_valid(self, form):

        object = form.save(commit=False)

        object.created_by = self.request.user

        object.save()

        return super(GaasWaferDesignCreateView, self).form_valid(form)

I'm just guessing but i think the part thats causing it not to work might be 

html_form = render_to_string('engineering/gaas_wafer_designs/gaas_wafer_design_form_inner.html',

        context,

        request=request,

    )

Thanks