Re: [Zope] Adding new _properties

After that, I cannt read old objects of this class. Zope write: Site Error An error was encountered while publishing this resource. Error Type: AttributeError Error Value: n1

How can I solve this problem?

class easyArticle(SimpleItem.SimpleItem): n1 = 0.0 n2 = 0.0 _properties = ( {'id':'author', 'type':'string', 'mode':'w'}, {'id':'n1','type':'float', 'mode':'w'}, {'id':'n2','type':'float', 'mode':'w'} ) cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk