Stacy,
In the "setInstanceMemento()" function you have the following line:
<cfset variables.contacts[x].setMemento(arguments.memento.contacts[x] ) )
/>
At some point "variables.contacts[x]" has to be set to an instance of
mysite.model.Contact. Otherwise, it will not know what to do with the
"setMemento()" method call. So, I guess that the answer to your question is
yes--you must be maintaining an array of Contact objects in your variables
(variables.contacts) scope.
The simplest way to do this might be to simply create a Contact object for
each instance indicated in the memento:
<cfset contact = CreateObject("component", "mysite.model.Contact")>
<cfset contact.setMemento(arguments.memento.contacts[x])>
<cfset variables.contacts[x] = contact>
You could also create a factory method that returns an instance of Contact:
<cffunction name="newContact" returntype="mysite.model.Contact"
access="private">
<cfreturn CreateObject("component", "mysite.model.Contact")/>
</cffunction>
Then change the the three previous lines in "setInstanceMemento()" to:
<cfset variables.contacts[x] = newContact()>
<cfset variables.contacts[x].setMemento(arguments.memento.contacts[x]))>
Anyhow, I have been tossing this same question around in my mind for a
little while myself. This is one solution I have come up with.
Paul Kenney
WebMaster, CorporateWarriors.com
916-663-1963
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Stacy Young
Sent: Saturday, December 20, 2003 6:45 PM
To: [EMAIL PROTECTED]
Subject: RE: [CFCDev] memento and composition (w/ arrays)
This may be an obvious question but...should I be maintaining an array
of Contact objects in variables scope as well? (code snippet below)
Muchos gracias,
Stace
<cfcomponent displayname="Affiliate Object" output="false">
<cffunction name="init" output="false" access="public"
returntype="Affiliate">
<cfargument name="data" type="struct"
default="#structNew()#" />
<cfset variables.instance = arguments.data />
<!--- Array for Contact Objects --->
<cfset variables.contacts = ArrayNew(1) />
<cfset variables.requiredFields = "" />
<cfset variables.missingFields = "" />
<cfset variables.invalidFields = "" />
<cfreturn this />
</cffunction>
<cffunction name="addContact" access="public" returntype="void"
output="false">
<cfargument name="contact" type="mysite.model.Contact"
required="yes" />
<cfset ArrayAppend( variables.contacts,
arguments.contact ) />
</cffunction>
<cffunction name="getInstanceMemento" access="public"
returntype="struct" output="false">
<cfset var x = "" />
<cfset variables.instance.contacts = ArrayNew(1) />
<cfloop index="x" from="1" to="#ArrayLen(
variables.contacts )#">
<cfset ArrayAppend( variables.instance.contacts,
variables.contacts[x].getMemento() ) />
</cfloop>
<cfreturn variables.instance />
</cffunction>
<cffunction name="setInstanceMemento" access="public"
returntype="Affiliate" output="false">
<cfargument name="memento" type="struct" required="yes"
/>
<cfset var x = "" />
<cfset variables.instance = arguments.memento />
<cfloop index="x" from="1" to="#ArrayLen(
variables.instance.contacts )#">
<cfset variables.contacts[x].setMemento(
arguments.memento.contacts[x] ) ) />
</cfloop>
<cfreturn this />
</cffunction>
</cfcomponent>
-----Original Message-----
From: Sean A Corfield [mailto:[EMAIL PROTECTED]
Sent: Saturday, December 20, 2003 8:01 PM
To: [EMAIL PROTECTED]
Subject: Re: [CFCDev] memento and composition (w/ arrays)
On Dec 20, 2003, at 4:54 PM, Stacy Young wrote:
> I've got an Affiliate.cfc which contains an array of Contact.cfc
> objects. I'm guessing I could just store an array of contact mementos
> in
> the struct?
Yup
Sean A Corfield -- http://www.corfield.org/blog/
"If you're not annoying somebody, you're not really alive."
-- Margaret Atwood
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