(no subject)
(no subject)
- Subject: (no subject)
- From: Nathan Dumar <email@hidden>
- Date: Mon, 27 Dec 2004 15:44:39 -0500
I hope everyone had a good Christmas (or holidays, for other faiths).
Yet another error occurs in deployment and not in development, but I
have some clues this time.
Here's what I'm doing in code:
The user record/object has a field for the session ID. When logging
in, my code expires the session if a session ID is found:
if ( (String)theUser().userSession() != null ) {
this.application().sessionStore().removeSessionWithID((String)theUser().
userSession());
// does nothing if session object for the session ID no longer exists
}
Then it records the current session ID:
theUser().setUserSession((String)this.session().sessionID());
ec().saveChanges(); // ec() returns
this.session().defaultEditingContext();
This works great, allowing each user to be logged in only once, but not
blocking them from logging in if they simply close the window and
forget to log out (logging out removes the session ID from the record
and expires the session).
When deployed, however, the following error is thrown at the line
ec().saveChanges() above:
ERROR - [2004-12-25 17:13:02 EST] <WorkerThread4>
com.webobjects.eoaccess.EOGeneralAdaptorException:
updateValuesInRowDescribedByQualifier --
com.webobjects.jdbcadaptor.JDBCChannel method failed to update row in
database
at
com.webobjects.eoaccess.EODatabaseContext._exceptionWithDatabaseContextI
nformationAdded(EODatabaseContext.java:4676)
at
com.webobjects.eoaccess.EODatabaseContext.performChanges(EODatabaseConte
xt.java:6384)
at
com.webobjects.eocontrol.EOObjectStoreCoordinator.saveChangesInEditingCo
ntext(EOObjectStoreCoordinator.java:415)
at
com.webobjects.eocontrol.EOEditingContext.saveChanges(EOEditingContext.j
ava:3165)
at Main.verifyUser(Main.java:54)
... <snip>
This only occurs when I attempt to log the same user in twice in a row.
Doing this should (and does in development) get the existing session
ID in the user object/record, expire it, set the new ID in the user
object/record, then save.
I've been looking at the docs at the methods listed in the error, but
have not yet come up with anything definitive, so ... What could be
causing this? How can I fix it?
Thank you for any help.
Nathan
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