So what you mean is:

If someone clicks on a car to edit, a txt file is written (maybe called the 
carID.txt).  Then if someone else clicks on that car to edit it, it says 
that it is already being edited by someone else because the txt file 
exists?  So what happens if that person who clicked first closes his 
browser before updating the car?  How can that text file be automatically 

I think I'll just assume that this wont be a problem, and if someone 
overwrites someone elses edit then too bad.. :-)


At 16:30 10/07/2001 -0700, you wrote:
>Tom Peck wrote:
> >
> > Thanks for the reply Manual.
> >
> > The updating IS done with one single query - but the problem is that if two
> > people are editing the same car, the second update will overwrite the
> > first.  Not a huge problem - and the chance of it happening is almost nil -
> > but there is still the possibility..  Changing databases seems a little
> > extreme - and not possible with our web host.
> >
> > Tom
>How about writing a text file that would be your "lock" file, rather
>than depending upon MySQL to do it for you?
>He who has imagination without learning has wings and no feet.
>   --Anonymous

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