What happens visually when someone clicks render? Do you stay on the same page? Do you send them to a "Generating graphic, please wait" page?

I wouldn't give the user the option to submit more than once. Or, you could call an END block or end() routine to clean up any mess a user may have left. Or, have a pid-type file check before submitting the rendering job.

You may have to do some sort of cookie thing to make sure that users can't submit more than one operation at a time.

Just my $0.02.

J. J. Horner

Linux, Perl, Apache, Stronghold, Unix

jhorner@knoxlug.org http://www.knoxlug.org

In reply to Re: embedded BEGIN and END? by jjhorner
in thread embedded BEGIN and END? by Aighearach

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