[Zope3-dev] session state issues
Roy Mathew
roymath at yahoo.com
Tue Jul 11 20:36:16 EDT 2006
Folks,
I have what seems to be an odd problem with persistence of information
in simultaneous sessions.
I keep track of an iterator in an object that is persistent (one
instance per-session). The iterator is updated as the user navigates a
sequence of objects. The iteration seems to work fine for a single user.
If 2 users A and B access the system simultaneously, each users
navigation is occasionally thrown off (ie: the session seems to lose
track of the iterator state). Mysteriously, this doesn't always
happen - most of the time, users can navigate without issue.
What might be going on here? My session object access looks sort of
like this:
session = ISession(self.request)[APP_NAME]
# I checked; session appears to be unique for each user
# initialize per-session hash
if not session.has_key('iterdata'): session['iterdata'] = {}
# store iterator; FolderIterator has a currentId member.
if not session['iterdata'].has_key(uniqueName):
session['iterdata'][uniqueName] = FolderIterator()
return session['iterdata'][uniqueName]
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