Datas in a database (was Re: [Openflow-dev] zpt)

[<jm...@so...>]

On Wed, 25 Sep 2002, Vincenzo Di Somma wrote:

> > I would be very much interested in features like separating the datas o=
f
> > the Openflow (instances and workitems) in a database.
>
> Any proposal about that ?

Using something like:

http://www.zope.org/Members/srichter/Products/DBObjects
http://sf.net/projects/modeling

But reading the first one has given me a gread headache. It's a complex
topic.

Well from what I read from DBOBjects, it seems to be convenient to have a
trace of the object in the zodb.

You put the database adapter on the Openflow, and it regenerates the
object structure.

Then, you work transparently.

One point would be: if you delete the openflow, the objects would not be
deleted from the database.  If you replace the openflow with and upgrade,
it will still use the objects on the database, and will not alterate them.

This is: even if there is a trace of the objects of the Zodb, funcionally
the datas are completly outside, in the database.


From=20the second reading, http://sf.net/projects/modeling, it has been to
fast, so no idea :-)


Well, I don't know, maybe a simpler solution would be possible, but, how
would you attach a property to an instance ? All seem to point to
something like this.


Just ideas, for the future :-)


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