Subversion Repositories SmartDukaan

def get_item_discount_map(item_ids):

    discount_finder = ItemDiscountFinder()

    item_coupons_discounts = []

    catalog_client = CatalogClient().get_client()

    for item_id in item_ids:

        item = catalog_client.getItem(item_id)

        discounts = discount_finder.getCouponsAndDiscountsOnItem(item)

        for discount in discounts:

            item_coupons_discounts.append((item_id, discount[0], discount[1]))

            break

    return item_coupons_discounts

class ItemDiscountFinder:

    def __init__(self):

        self.coupon_modules = {}

        coupons = get_active_coupons()

        for coupon in coupons:

            if coupon.coupon_code not in ('4B@R10DER5', 'SAHOLIC4RS'):

                coupon_rule = coupon.promotion.rule_execution_src.strip()

                imported_coupon_module = __import__("shop2020.model.v1.user.promotionrules", globals(), locals(), [coupon_rule])

                self.coupon_modules[coupon.coupon_code] = eval("imported_coupon_module." + coupon_rule)

    def getCouponsAndDiscountsOnItem(self, item):

        discounts = []

        for coupon_code, coupon_rule_module in self.coupon_modules.iteritems():

            discount = coupon_rule_module.getDiscountOnItem(item)

            if discount is not None:

                discounts.append((coupon_code, discount))

        return discounts