[Zope] Products and clases with new attributes

Jens Vagelpohl jens@zope.com
Mon, 7 Oct 2002 07:43:13 -0400


you could add those attributes at the class level with a sane default 
value. those at the class level will be picked up by all instances that 
don't have them at instance level.

jens


On Monday, Oct 7, 2002, at 06:27 US/Eastern, Antonio Beamud Montero 
wrote:

> Hi all:
> Long time ago I started to develop a big product, it's under 
> development
> now, but with some stable releases in a client. My problem is that new
> releases of a Product adds new attributes and when I upgrade de 
> Product,
> I need to create another instance and recreate all the system, because
> old instances in the zobd haven't that attributes...
> Now, it's no problem, but when this system is in production, with
> hundred of objects... buff... How I can solve this problem...?