reverse inline form

reverseinlineform.py

class DiabloAccountProductForm(forms.ModelForm):
    product_name = forms.CharField(max_length=255)
    sku = forms.CharField(max_length=255)
    region = forms.ModelChoiceField(Region.objects.all())
    account_name = forms.CharField(max_length=64)
    code = forms.IntegerField()
    def __init__(self,*args,**kwargs):
        initial = kwargs.pop('initial',{})
        instance = kwargs.get('instance',None)
        product = getattr(instance,'product',Product())
        account = getattr(instance,'account',DiabloAccount())
        initial.update({
                'product_name': product.name,
                'sku': product.sku,
                'region': account.region,
                'code': account.code,
                'account_name': account.name,
                    })
        kwargs['initial'] = initial
        super(DiabloAccountProductForm,self).__init__(*args,**kwargs)
    def save(self,*args,**kwargs):
        commit = kwargs.pop('commit',True)
        kwargs['commit'] = False
        obj = super(DiabloAccountProductForm,self).save(*args,**kwargs)
        if obj.pk:
            product = obj.product
            account = obj.account
        else:
            product = Product(site_id=1)
            account = DiabloAccount()
        product.name = self.cleaned_data['product_name']
        product.sku = self.cleaned_data['sku']
        product.save()

        account.code = self.cleaned_data['code']
        account.region = self.cleaned_data['region']
        account.name = self.cleaned_data['account_name']
        account.save()
        obj.product = product; obj.account=account
        if commit:
            obj.save()
        return obj
    class Meta:
        model = DiabloAccountProduct
        fields = ('product_name','sku','region','account_name','code')