silvershop
Globalised tax calculation
Tax should update automatically, according to country, and what items. Some countries calculations are more complex than others.
Store all tax rates in an array / file, allowing for updates to be made every new version of shop, or for developers to make updates. http://en.wikipedia.org/wiki/Tax_rates_around_the_world
Defining tax classes will allow specific products to be added to those classes, as some countries charge different tax rates for different types of products.
The region restriction system (#94) will help to define tax rates per region.
Class Structure
TaxClass
TaxRate extends RegionRate
TaxClass has many TaxRates.
Work has been started on this in https://github.com/burnbright/silverstripe-shop-taxframework
@wilr Looks like a great library. I guess tax calculation should be left to a module, or what do you think?
