You must fork the order application from Oscar to enable tax calculation as part of placing an order.
Persistence of tax details, while optional, requires that your project uses PostgreSQL. It relies on the HStore field.
$ pip install django-oscar-cch
# myproject/settings.py ... INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'django.contrib.postgres', ... 'oscarcch', ... ] + get_core_apps([ ... ]) ...
Add some attributes to
settings.pyto configure how the application should connect to CCH.:
# myproject/settings.py # Add this is you need to connect to the SOAP API through an HTTP Proxy. # See the instrumented-soap documentation for more details. SOAP_PROXY_URL = ... # Configure the CCH WSDL location, entity, and division code CCH_WSDL = ... CCH_ENTITY = ... CCH_DIVISION = ... # Provide either a product SKU or a product group and item to send to CCH when calculating taxes CCH_PRODUCT_SKU = ... CCH_PRODUCT_GROUP = ... CCH_PRODUCT_ITEM = ...
Alternative to setting
CCH_PRODUCT_ITEMglobally, you can set them per-product by creating ProductClass attributes with the same names (in lowercase).
Install the necessary extra fields on
order.models.Line(see also How to fork Oscar apps).:
# order/models.py from oscarcch.mixins import CCHOrderMixin, CCHOrderLineMixin from oscar.apps.order.abstract_models import AbstractOrder, AbstractLine class Order(CCHOrderMixin, AbstractOrder): pass class Line(CCHOrderLineMixin, AbstractLine): pass from oscar.apps.order.models import * # noqa
Create and run migrations for the order app.:
$ python manage.py makemigrations order $ python manage.py migrate
For usage, continue to Usage.