You're kidding me?  How come you never see things like this in help files, 
etc?  So, you're saying that if I do this:

<cfset variables.user = session.user>

<cfset variables.user.username = "blah blah, overwriting original value">

That session.user.username now contains what I did for variables.user.username?

~Todd


On Wed, 12 Jun 2002, Raymond Camden wrote:

> Just be careful with this code:
> 
> <cfset variables.user = session.user>
> 
> If session.user is a structure then you are creating a pointer, not a
> copy. You would need to use this instead:
> 
> <cfset variables.user = duplicate(session.user)>
> 
> =======================================================================
> Raymond Camden, ColdFusion Jedi Master for Macromedia
> 
> Email    : [EMAIL PROTECTED]
> Yahoo IM : morpheus
> 
> "My ally is the Force, and a powerful ally it is." - Yoda 
> 
> > -----Original Message-----
> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] 
> > Sent: Wednesday, June 12, 2002 8:56 AM
> > To: CF-Talk
> > Subject: Re: Absolutly neccesary to cflock session variables
> > 
> > 
> > If the session is locked prior to calling 
> > isdefined('session.myvariable') 
> > it should throw an error.  Anytime I have a session variable, 
> > I usually 
> > try to make it a structure within a variable, that way when I 
> > do <cfset 
> > variables.user = session.user>, I've got the whole structure (read: 
> > variables.user.myvariable) in one simple statement and I can 
> > do a readonly 
> > cflock scope on it to pull it local to the page.
> > 
> > Once it's a local variable 
> > isdefined('variables.user.myvariable') is no 
> > longer needed to be locked.
> > 
> > ~Todd
> > 
> > On Wed, 12 Jun 2002, Brian Eckerman wrote:
> > 
> > > Is it absolutly necesary to cflock session variables.
> > > ex. when doing an IsDefined(session.myvariable).
> > > How could it hurt to not use them?
> > > 
> > 
> 
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