seb bacon writes:

I'm writing a minimal product for which I'm getting a

Error Type: AttributeError Error Value: commit_sub

from the transaction machinery. The traceback's no help. The offending code, however is:

class Foo(SimpleItem)

def __init__(self, id, title, file):

self.file = Image('file',title,'') self.file.manage_upload(file)

Can anyone tell me what's wrong here? This is a bug, that has been reported several times recently.

Your file is probably quite large and Zope wants to store it piecewise in the ZODB (in several subtransaction). However, some necessary object does not have the "commit_sub" method. Look into the collector, whether the bug is already recorded. If not, do it. Dieter