Book Image

ColdFusion 9 Developer Tutorial

By : John Farrar
Book Image

ColdFusion 9 Developer Tutorial

By: John Farrar

Overview of this book

Adobe ColdFusion is an application server, renowned for rapid development of dynamic websites, with a straightforward language (CFML), powerful methods for packaging and reusing your code, and AJAX support that will get developers deep into powerful web applications quickly. However, developing rich and robust web applications can be a real challenge as it involves multiple processes.With this practical guide, you will learn how to build professional ColdFusion applications. Packed with example code, and written in a friendly, easy-to-read style, this book is just what you need if you are serious about ColdFusion.This book will give you clear, concise, and practical guidance to take you from the basics of ColdFusion 9 to the skills that will make you a ColdFusion developer to be reckoned with. It also covers the new features of ColdFusion 9 like ORM Database Interaction and CF Builder.ColdFusion expert John Farrar will teach you the basics of ColdFusion programming, application architecture, and object reuse, before showing you a range of topics including AJAX library integration, RESTful Web Services, PDF creation and manipulation, and dynamically generated presentation files that will make you the toast of your ColdFusion developer town.This book digs deep with the basics, with real-world examples of the how and whys, to get more done faster with ColdFusion 9.
Table of Contents (22 chapters)
ColdFusion 9 Developer Tutorial
Credits
About the Author
About the Reviewers
Preface
Index

How ColdFusion recognizes users


Browsers have unique IDs that mark the session being used. Browsers can also have cookies. If the browser is allowing cookies, then things will be easier. Without cookies, we will have to pass the user identification in every communication that comes back to the server from the browser.

The following table shows the key permission functions that we will be using in this chapter. These are the most commonly used functions; but if needed, you can look at some more functions, or consider rolling your own solution. Now, we will look at some common built-in solutions that prove beneficial:

Key permissions functions

Description

cfLogin

This is a wrapper tag used in login code. The inner contents of the tag run only if the session does not show that someone is logged in.

cfLoginUser

This tag is run inside the body of <cfLogin> tag. This tag declares the user's unique ID, password, and permission roles.

cfLogout

This tag simply logs the current...