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ColdFusion 9 Developer Tutorial

You're reading from   ColdFusion 9 Developer Tutorial Create robust professional web applications with ColdFusion

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Product type Paperback
Published in Jul 2010
Publisher Packt
ISBN-13 9781849690249
Length 388 pages
Edition 1st Edition
Languages
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Author (1):
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John Farrar John Farrar
Author Profile Icon John Farrar
John Farrar
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Table of Contents (22) Chapters Close

ColdFusion 9 Developer Tutorial
Credits
About the Author
About the Reviewers
1. Preface
1. Web Pages—Static to Dynamic 2. Basic CFCs and Database Interaction FREE CHAPTER 3. Power CFCs and Web Forms 4. ORM Database Interaction 5. Application, Session, and Request Scope 6. Authentication and Permissions 7. CFScript 8. CF AJAX User Interface 9. CF AJAX Forms 10. CF AJAX Programming 11. Introduction to Custom Tags 12. ColdFusion Powered Views 13. Control Logic Processing 14. Guide to Unit Testing Beyond this Book Tools and Resources 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...

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ColdFusion 9 Developer Tutorial
Published in: Jul 2010
Publisher: Packt
ISBN-13: 9781849690249
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