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...?
Thanks...
hi, you can add a upgrade-method to your Product, which checks the existing attributes and adds the missing ones... if you use the PropertyManager, you should "rewrite" _properties. cheers, maik -- Maik Jablonski __o www.zfl.uni-bielefeld.de _ \<_ Deutsche Zope User Group Bielefeld, Germany (_)/(_) www.dzug.org