Question

I need to add a “free shipping if purchased more than $100” functionality for the Canada Post module in satchmo. Can this be done out of the box, or will I need to make a new shipping module?

Answer 1

OK, to do this I did the following:

from product.models import Discount

class AutoDiscount(Discount):
    pass

This allows me to define the different discounts in the admin area, and then do this:

def check_automatic_discounts(sender, form=None, **kwargs):
    """
    """
    if sender in (CreditPayShipForm, SimplePayShipForm,
                  PaymentContactInfoForm):
        # I probably need to sort these in some specific order
        for discount in AutoDiscount.objects.all():
            if discount.isValid(cart=form.cart,)[0]:
                form.order.discount_code = discount.code
                form.order.save()
                return

signals.form_postsave.connect(check_automatic_discounts)

I can add fields to the AutoDiscount model and override the isValid method if I need more detailed control over which discounts are applied