you are severely re-inventing the wheel.
Look for CVS or RCS programs on the net.
you'll save yourself a ton of work.
> -----Original Message-----
> From: Dave Freeman [mailto:[EMAIL PROTECTED]]
> Sent: Monday, July 30, 2001 6:27 AM
> To: [EMAIL PROTECTED]
> Subject: [PHP] Revision Tracking - program concept
>
>
> G'day All
>
> I'm writing an application for an intranet environment. At the moment I'm
> writing a document control system. The intention is that people will be
> able to check in documents (generally created in MS Word from
> templates) and the app will upload them to the server.
>
> The process related to this involves other people then checking the
> documents back out and making appropriate changes based on their
> responsibilities and then checking the documents back into the system
> again.
>
> What I would like to do is keep track of each revision of these documents
> (ie. actually provide a capability to review earlier revisions, or, indeed,
> revert to earlier revisions).
>
> At this stage I am planning to track information about each document in
> an SQL table but not actually store the binary data in the table (there are
> additional reasons behind this).
>
> The only solution I've come up with that will easily implement some sort of
> revision system would be to store only the last five, for example, revisions
> and then use duplicate SQL tables to store older iterations of the
> document with suitable links in the SQL back to the current version.
>
> Can anyone suggest an alternate approach that will let me do this?
>
> More from a program logic point of view than from an actual code example
> point of view really. I guess that makes this close to off-topic but there
> you go - hopefully it won't be considered too out of place.
>
> CYA, Dave
>
>
> -----------------------------------------------------------------------
> Outback Queensland Internet - Longreach, Outback Queensland - Australia
> http://www.outbackqld.net.au mailto:[EMAIL PROTECTED]
> -----------------------------------------------------------------------
>
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