In <004f01bfa4a0$fb577a40$3c2fa8ce@jim>, Jim McAtee
([EMAIL PROTECTED]) in a fit of unbridled passion, wrote:
> Just wondering how (or if?) others are handling the situation where you
> want to let users open multiple instances of an application. Are session
> variables completely out of the question for state management in this
> case? As far as I can tell, once a session is established, that same
> session runs across all open windows of the browser. A common scenario
> might be if a user opened two record editing windows in order to cut and
> paste data from one to the other.
You are correct -- one session for all open instances on the machine
(unless they are open in different browser software)
> There would seem to be some potential pitfalls for developers who don't
> take into account the possibility of a user running multiple instances of
> an application. For instance, keeping a "current record" id within a
> session variable as the user passed through several pages of an
> application. Not something everyone might do, but very easy to imagine
> happening.
You must NEVER assume a stateful connection with HTTP!!!!!! Never,
ever, ever! If you are performing a task that requires a stateful and
sequential series of events, I might suggest looking at creating your
own session variable management system.
In the example of your current record ID, this is also something that I
would keep persistent in the URL or as a hidden form field, not as a CF
session variable.
(I never use CF's session variable functionality anyway because it's not
scalable. I use client variables and do the rest in my own database
tables.)
> I don't remember seeing this discussed before, so am I missing something
> obvious?
>
> Thanks,
> Jim
>
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--
Reuben King <mailto:[EMAIL PROTECTED]>
Senior Web Consultant
Stonebridge Technologies <http://www.sbti.com/>
Phone: (512) 502-3332
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