One thing you could do is use composition rather than extends to provide the
application functionality.
So instead of having
<cfcomponent extends="somebasecomponent">
You would have something like this:
<cfcomponent>
<cffunction name="init" ...>
<cfset variables.basecomponent =
createObject('component','#mappingpath#.somebasecomponent')>
</cffunction>
It might not be a perfect fit for how your architecture works if you rely
heavily on overriding methods and using super(), but otherwise it should
solve the problem.
Spike
--------------------------------------------
Stephen Milligan
Code poet for hire
http://www.spike.org.uk
Do you cfeclipse? http://cfeclipse.tigris.org
>-----Original Message-----
>From: [EMAIL PROTECTED]
>[mailto:[EMAIL PROTECTED] On Behalf Of Jurgen Stillaert
>Sent: Friday, May 21, 2004 6:22 AM
>To: [EMAIL PROTECTED]
>Subject: RE: [CFCDev] Constant values in attribute extends
>
>Hi Jeffry,
>
>
>
>The structure is a follow:
>
>E:/
>
> _website_development/
>
> baseComponent.cfc
>
> /OtherComponents/
>
> component1.cfc
>
> component2.cfc
>
> _website_demo/
>
> baseComponent.cfc
>
> /OtherComponents/
>
> component1.cfc
>
> component2.cfc
>
>
>
> Websites/
>
> Website1/
>
> Some cfc's extending
>baseComponents above
>
> Website2/
>
> Some cfc's extending
>baseComponents above
>
> Website2_demo/
>
> Some cfc's extending
>baseComponents above
>
>
>
>When I finished a component in
>E:/_website_development/OtherComponents/ I copy it to
>E:/_website_demo/OtherComponents/ for testing (for clients).
>
>
>
>So I need to redirect the websites under E:/Websites/ to the
>right components (and maps). But it seems that Cold Fusion
>doesn't allow you to use variables in the extends attribute.
>(and it's like cfinclude, and there it will work.).
>
>
>
>My (stupid) solution is to enforce other webdevelopers to
>change manually the extends attribute. But I hope that is not
>the best solution that's out there.
>
>
>
>-----Original Message-----
>From: [EMAIL PROTECTED]
>[mailto:[EMAIL PROTECTED] On Behalf Of Jeffry Houser
>Sent: vrijdag 21 mei 2004 16:10
>To: [EMAIL PROTECTED]
>Subject: Re: [CFCDev] Constant values in attribute extends
>
>
>
>
> I think you mean <cfcomponent extends=""> not cfmodule.
>
> If your components are in the same directory, they can be
>referred to as a package. The "package" directory is the
>first place the extends component is looked for (someone
>correct me if this is wrong). In this case, do you need to
>specify a full directory or are your components located in the
>same directory? Would this: <cfcomponent
>extends="BaseComponent"> work?
>
>At 10:00 AM 5/21/2004, you wrote:
>
>
>
>Hello,
>
>I'm developing on a website and I wanted to split up the
>development code and stable and tested code (for demo).
>
>So I made two mappings: website_development and website_demo
>in ColdFusion administrator.
>
>In application.cfm, I created an application.map variable with
>one of the two above mentioned mappingnames.
>
>I adapted the code of my cfc's from <CFMODULE extends =
>"website_development.baseComponent"> to <CFMODULE extends =
>"#application.map#.baseComponent">
>
>But, when I run the program, I get this error "This expression
>must have a constant value." And that is a major setback for me. :-(
>
>Does someone know a work around for this?
>
>Met vriendelijke groeten,
>Jurgen Stillaert
>
>---------------------------------------------------------------
>---------------------
>Jurgen Stillaert
>Webdeveloper
>
>RAMIT vzw
>c/o Dept. Medical Informatics & Statistics University Hospital
>Ghent (5K3) De Pintelaan 185 9000 Ghent Belgium
>
>Phone: +32 9 240 52 93
>Fax: +32 9 240 34 39
>E-mail: [EMAIL PROTECTED]
>
>
>
>--
>Jeffry Houser, Web Developer, Writer, Songwriter, Recording
>Engineer <mailto:[EMAIL PROTECTED]>
>--
>AIM: Reboog711 | Phone: 1-203-379-0773
>--
>My Books: <http://www.instantcoldfusion.com
><http://www.instantcoldfusion.com/> > Recording Music:
><http://www.fcfstudios.com <http://www.fcfstudios.com/> >
>Original Energetic Acoustic Rock: <http://www.farcryfly.com
><http://www.farcryfly.com/> >
>
>
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