Hi everyone. I've been fighting with this for a while now. So I mail the list for a suggestion.
I have a `Variable` class wich I subclass from OOBTree, because I need a dictionary with the min, max options that OOBTree methods give. My object is supposed to store datetime.datetime instances as keys and floats numbers as values. eg: temperature[datetime(2007, 4, 6, 12, 8)] = 25.8 I didn't use BTreeContainer because only takes strings as keys, and I don't want to map datetime to strings and back. Here's my class definition: class Variable(OOBTree, Contained): implements(IVariable, IAttributeAnnotatable) name = None units = None I start the server and everything works like a charm. My AddForm works OK for the Variable class. I checked its create() method (with assert statements) and the returned instances contain the name and units attributes set from the form. But if I stop the server and restart later, my data (datetimes and floats) are still there, but my name and units attributes are None!! I tried to subclass from (OOBTree, Persistent, Contained) too, and it didn't work either. If I subclass only from (PersistentDict) everything works. Data and attributes are mantained upon restart, but I lose the min, max functionality I like :( What could be the problem or a possible solution to this issue? Thanks. ____________________________________________________________________________________ Looking for earth-friendly autos? Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center. http://autos.yahoo.com/green_center/ _______________________________________________ Zope3-users mailing list Zope3firstname.lastname@example.org http://mail.zope.org/mailman/listinfo/zope3-users