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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

The practice of protecting access


In CFC methods, there is an attribute called "access". The access methods are explained in Chapter 2, Basic CFCs and Database Interaction. Some methods within a CFC are more examples of reuse. We have updated the sample code for _product.cfc in addition to what you had in the previous chapter. It is an example of a power CFC. There is a method inside the CFC called setDefaults(). The variable variables.field.names comes from another location in our CFC:

<cffunction name="setDefaults" access="private" output="false">
  <cfset var iAttr = 0>
    <cfloop list="#listLen(variables.field.names)#" index="iAttr">
    <cfscript>
      variables.attribute[#listGetAt(variables.field.names,iAttr)#] = setDefault(variables.field.names,iAttr);
    </cfscript>
    </cfloop>
</cffunction>

The logic for this would actually be used in more than one place inside the object. When the object is created during the first run, it would call...

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