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

Making our data query flexible


We set the default value so the page doesn't fail if there is no value for the ID variable passed in. We added the singular getProduct variable. It actually returns a recordset just like rsProducts returns a recordset. The only difference is that this will return a single record after we modify the CFC. Currently the CFC doesn't handle the where argument even though it is part of the method. We have to build in the functionality. This is what the method should look like now. Change the highlighted lines to make this method work correctly. As we are not adding the query type to the <cfoutput> tag inside the if condition where there is only one record, it will not loop through the query. It will only return the first record in the recordset. In this instance there is only one record, so that would be the same. This information is just for future reference, so we will understand why only one row appears on our web page and why we have to declare the query...