FormPreview and ModelForms

[Ian Stokes-Rees]

I'm using FormPreview with a ModelForm.  My done() method gets the request 
and the cleaned_data once form.is_valid() evaluates to True.  I'm wondering 
if I need to do anything special to use the cleaned_data or handle the 
form-uploaded files.  My current class definition is:

class WSMRTaskFormPreview(FormPreview):
    def done(self, request, cleaned_data):
        WSMRTaskForm(request.POST, request.FILES).save() 
        return HttpResponseRedirect(reverse('success'))

but I'm wondering if it should be:

class WSMRTaskFormPreview(FormPreview):
    def done(self, request, cleaned_data):
        WSMRTaskForm(cleaned_data, request.FILES).save()  # cleaned_data 
instead of request.POST
        return HttpResponseRedirect(reverse('success'))

or even:

class WSMRTaskFormPreview(FormPreview):
    def done(self, request, cleaned_data):
        if request.FILES.has_key('mtz_fp'):
            WSMRTaskForm(request.POST, request.FILES).save() 
            return HttpResponseRedirect(reverse('success'))
        else:
            return HttpResponseRedirect(reverse('missing_files'))
    
TIA, Ian

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