On Saturday, August 3, 2002, at 02:58 , Stacy Young wrote:
> If I have a CFC that stores its results in session scope is the data
> duplicated on the return or is the session data just referenced via
> pointer
> of sorts?
It uses reference semantics. However, it's not really good practice to
have CFCs store results in shared scopes - CFCs should be independent of
their environment.
However, if the CFC stores things in session scope - why bother returning
them at all? Why not just let the caller access session.stuff directly?
> <cffunction name="getAccounts">
You should add returntype="query" for extra validation.
> <cfquery name="session.test">
> SELECT * FROM BLAH
> </cfquery>
> <cfreturn session.test>
> </cffunction>
You'd be better off having the caller (only) know about the session scope
and using a local variable inside the function:
<cfset var test = 0/>
<cfquery name="test">
SELECT * FROM BLAH
</cfquery>
<cfreturn test/>
Then the caller would do:
<cfinvoke component="accounts"
method="getAccounts"
returnvariable="session.aQuery"/>
if you wanted it to stay in session scope (the query is not copied, only a
reference to it, so this is fast). Or, if you just wanted a local copy:
<cfinvoke component="accounts"
method="getAccounts"
returnvariable="aQuery"/>
Note that since 'test' inside the function is declared with 'var', it will
be a new copy for every invocation.
"If you're not annoying somebody, you're not really alive."
-- Margaret Atwood
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