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

Custom authentication (additional power)


In this section, we will look at a customized way to handle authentication that gives us all the core features we need along with some additional enhancements. We are going to create a CFC for the user and nest the logic inside the user object for authentication. We will instantiate the user class as a session-based object. We will also take this logic and wrap it into Application.cfc so that it becomes portable and easier to implement in our programs. In the end, we will have more function and flexibility than the native authentication permission-handling system. Following is the code for the session start of Application.cfc:

<cffunction name="onSessionStart" output="false">
  <cfscript>
    // create default session stat structure and pre-request values
    session._stat.started = now();
    session._stat.thisHit = now();
    session._stat.hits = 0;
    // at start of each session update count for application stat
    application._stat...