لطفا منتظر باشید ...
Chapter 19. Ordering and Shipping at the Online Winestore
This chapter is the fourth of five that
outline the complete winestore application. In this chapter, we
complete our description of the shopping components of the winestore
by explaining the ordering and shipping modules. The ordering module
collects and validates credit card details and manages the conversion
of the shopping cart discussed in Chapter 18 to
an order. In this process, the module manages the most complex
database interactions in the winestore and uses locking to address
concurrency problems.
The scripts discussed in this chapter
perform the following functions:Collect credit card and delivery details
Collects a credit card number, expiration date, and optional delivery
instructions. These are validated using the techniques discussed in
Chapter 9.
Finalize orders
Converts a shopping cart to an order and manages the sale of wine
from the inventory table. This illustrates
complex database processing that requires the locking techniques
discussed in Chapter 8.
Email receipts
Sends a confirmation email to the user using the PEAR Mail package
and a template that illustrates how the templates described in Chapter 7 can be used for non-HTML applications. Code
that uses the PHP mail( ) library function is
also included, but is not enabled by default.
HTML order receipts
Completes the ordering process with an HTML receipt that avoids the
reload problem discussed in Chapter 6.
