Further Development
There are several ways to proceed from here. Perhaps the first might be to add an administration
system for tax and shipping options. This hasn??™t been implemented here partly because it
would be trivial given the experience you??™ve had so far in this book and partly because the
techniques laid out here are more of a template for development than a fully developed way of
doing things??”there are so many options to choose from for both tax and shipping calculations
that only the basics are discussed here.
Hooking into online services for tax and shipping cost calculations is an attractive option;
for shipping services, this is very much a possibility. In fact, the services offered by shipping
companies such as FedEx use a process similar to the credit card gateway companies we??™ll look
at later in this book. Much of the code you would have to write to access shipping services will
be very similar to code for credit card processing, although, of course, you??™ll have to adapt it to
get the specifics right. In your case, more major changes may be required, such as adding weights
and dimensions to products, but that very much depends on what products you are selling.
Summary
In this chapter, we??™ve extended the TShirtShop site to enable customers to place orders using
all the new data and techniques introduced in Chapter 16.
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