def _container_discount(coupon, order_obj):
all_items = order_obj.items # {obj_id: None, coll_name: None, quantity:None}
total_price = 0
coupon_container = items.get_container(coupon.obj_id)
for i in all_items:
item = items.get(i["obj_id"])
item_container = items.item_container(item)
if item_container._id == coupon.obj_id or items.parent_container(coupon_container, item_container):
total_price += item.price * i["quantity"]
if total_price >= coupon.coupon_value:
return Decimal(coupon.coupon_value)
else:
return Decimal(total_price)
def is_valid(coupon, order_obj):
"""
Checks if a coupon is valid on an order
"""
user_obj = users.get(order_obj.user_id)
user_groups = user_obj.groups
utc_now = datetime.datetime.utcnow()
order_price = orders.total_price(order_obj)
if coupon.user_scope == CouponUserScope.GROUP:
if coupon.user_group not in user_groups:
return False
if coupon.user_scope == CouponUserScope.SPECIFIC:
if coupon.user_id != user_obj._id:
return False
if coupon.valid_times <= 0:
return False
if coupon.coupon_lifetime_type == CouponLifetime.LIMITED:
if utc_now > coupon.expire_utc_datetime:
return False
if utc_now < coupon.begins_utc_datetime:
return False
if coupon.order_minimum_spending < order_price:
return False
all_items = order_obj.items # {obj_id: None, coll_name: None, quantity:None}
flag = False
for i in all_items:
i["obj"] = items.get(i["obj_id"])
i["container"] = items.item_container(i["obj"])
if coupon.coupon_scope == CouponScope.CONTAINER_WIDE:
container_obj = items.get_container(coupon.obj_id)
if items.is_parent_container(container_obj, i["container"]) or i["container"]._id == coupon.obj_id:
flag = True
break
if coupon.coupon_scope == CouponScope.ITEM_ONLY:
if i["obj_id"] == coupon.obj_id:
flag = True
break
if not flag:
return False
return True
def valid_on_item(discount, item_obj):
"""
Checks if a discount is valid on an item.
"""
item_container = items.item_container(item_obj)
if discount.discount_scope == DiscountScope.ALL_ITEMS:
return False
if not is_item_scoped(discount, item_obj) and is_container_scoped(discount, item_container):
return False
utc_now = datetime.datetime.utcnow()
if item_obj.price <= discount.item_minimum_spending:
return False
if discount.discount_lifetime_type == DiscountLifetime.LIMITED:
if discount.expire_utc_datetime is not None and utc_now > discount.expire_utc_datetime:
return False
if discount.begins_utc_datetime is not None and utc_now < discount.begins_utc_datetime:
return False
if discount.status == DiscountStatus.DISABLED:
return False
return True