Re: Application Design: Where to implement historical revisions of objects

Michelle Konzack <[email protected]>
Newsgroups gmane.comp.db.postgresql.php
Message-ID <[email protected]>
Hello Colin,

Am 2007-05-23 13:10:42, schrieb Colin Ross:
> In Practice:
> An application has a model class of "PageContent" which represents the
> content that is shown on a certain page. Users of the system are
> authenticated, then able to edit the content. From an application design 
> point
> of view, where should the logic and underlying system be for the management
> of historical revisions.

I have something similar, exactly, a Database of military data and data
sets are never modified but added.

So, I give each dataset a serialnumber and a revision 0. Then if the
dataset was modified I change the revision to a higher number and add
the whole dataset into a new row.

This thing is done using trigers.

Greetings
    Michelle Konzack
    Systemadministrator
    Tamay Dogan Network
    Debian GNU/Linux Consultant


-- 
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
Michelle Konzack   Apt. 917                  ICQ #328449886
                   50, rue de Soultz         MSN LinuxMichi
0033/6/61925193    67100 Strasbourg/France   IRC #Debian (irc.icq.com)
signature.pgp (application/pgp-signature, 189 B) - not displayed
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.