I don't want to receive this email anymore !!!
Thanks !
----- Message d'origine ----
De : Michael Gentry <blacknex..mail.com>
À : cayenne-use..ncubator.apache.org
Envoyé le : Vendredi, 1 Décembre 2006, 14h56mn 47s
Objet : Re: Re: best practice for handling database schema changes
I found this yesterday (although I haven't read it all yet):
http://www.stepwise.com/Articles/2005/DBChanges/index.html
Not sure if it'll be helpful, but it looks similar to some ideas I had
been pondering in the past.
/dev/mrg
On 11/30/06, Michael Gentry <blacknex..mail.com> wrote:
> Currently you have to manually merge the changes just as you states.
> I should probably make an FAQ for this ...
>
> Thanks,
>
> /dev/mrg
>
>
> On 11/30/06, Tobias SCHOESSLER <Tobias.Schoessle..nvienna.org> wrote:
> >
> > hi,
> > What is the best practice for handling changes to the database schema once a
> > cayenne mapping was created?
> > We use the 'reverse engineer from database' feature to create an initial
> > mapping. But then we usually have to do manual changes like map some pks,
> > add flattened relationships, etc.
> > If then the database schema needs to be changed we usually have a problem as
> > 'reverse engineer from database' overwrites everything. There seems to be
> > the possibility to replace only selected tables but if you do this the
> > relationships are messed up. Is there a way to merge the changes with the
> > current model/mapping?
> >
> > thanks
> >
> > Tobias
>
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