def save(self, **kwargs):
        if not self.pk:
            self.create_date = datetime.date.today()
        super(ProductWish, self).save(**kwargs)
Ensure we have a create_date before saving the first time.
dataset/ETHPy150Open dokterbob/satchmo/satchmo/apps/satchmo_ext/wishlist/models.py/ProductWish.save