12. Managing the Deliver Process¶
Depending on the merchant’s setup, an order can be considered as one inseparably unit, or if partial shipping shall be allowed, as a collection of single products, which can be delivered individually.
To enable partial shipping, assure the instantiation of both classes
easiest way to do this is to import the materialized classes into an existing model class:
from shop.models.defaults.delivery import Delivery, DeliveryItem
12.1. Partial Delivery Workflow¶
The class implementing the
Order, requires additional methods provided by the mixin class
shop.shipping.delivery.PartialDeliveryWorkflowMixin. Mix this class into the
class by configuring
SHOP_ORDER_WORKFLOWS = ( # other workflow mixins 'shop.shipping.defaults.PartialDeliveryWorkflowMixin', )
Do not combine this mixin with the class
12.2. Administration Backend¶
To control partial delivery, add the class
to the amin class class implementing an
from django.contrib import admin from shop.admin.order import BaseOrderAdmin from shop.models.defaults.order import Order from shop.admin.delivery import DeliveryOrderAdminMixin @admin.register(Order) class OrderAdmin(DeliveryOrderAdminMixin, BaseOrderAdmin): pass
12.3. Implementation Details¶
When partial delivery is activated, two additional tables are added to the database, one for each delivery and one for each delivered order item. This allows us to split up the quantity of in ordered item into two or more delivery objects. This can be useful, if a product is sold out, but the merchant wants to ship whatever is available on stock. He then creates a delivery object and assigns the available quantity to each linked delivery item.
If a product is not available at all anymore, the merchant can alternatively cancel that order item.