The module manages the most complex database interactions in the winestore and includes locking to address concurrency problems. The shipping module consists of two receipts: an email receipt that shows how the PHP mail( ) function is used in practice and an HTML receipt that is similar to the customer receipt in tutorial 10.
This tutorial is the third of four that outline the complete winestore application. As in the previous two tutorials, we emphasize that the scripts aren't a production system but an illustration of web database application practice. We encourage use of the scripts for any purpose and suggest that the best method to understand the scripts is to view, edit, and use them while reading the tutorial. We also emphasize that the descriptions in this tutorial are outlines and that a full understanding of the scripts requires reading and using the code.
The scripts discussed in this tutorial perform the following functions:
- Finalize orders
- Convert a shopping cart in the items and orders tables to an order and manage the sale of wine through the inventory table
- Email receipts
- Send a confirmation email to the user
- HTML order receipts
- Complete the ordering process with an HTML receipt that avoids the reload problem