Hi Tim,
I don't think I've seen this with my D2W-Apps yet. This may be due to my
disabling browser navigation via the page wrapper:
@Override
public void appendToResponse(WOResponse response, WOContext context) {
super.appendToResponse(response, context);
...
ERXResponseRewriter.addScriptCodeInHead(response, context,
"if(window.history){window.history.forward(1);}");
}
This quite effectively prevents the back-button from wreaking havoc. Also, you
may want to try:
100 : task = 'edit' => shouldRecoverFromOptimisticLockingFailure = "true"
[com.webobjects.directtoweb.BooleanAssignment]
Fabian
Am 03.06.2013 um 21:06 schrieb Tim Worman:
> All:
>
> I have an ERModern app where I see this issue from time to time - an
> optimistic locking problem I believe. If I kick a new instance everything is
> fine. It seems to be due to something left "dirty" or unchanged and I feel
> like I've seen it when users start using browser navigation instead of the
> "Cancel" button on an edit page. When they come back later, something is
> messed up and subsequent saves fail.
>
> I could be wrong about the cause. Does anyone else ever have similar problems
> or maybe some strategies for avoiding these issues. Of course, it could be
> something else. If it's my fault, I wanna fix it!
>
> Tim
> UCLA GSE&IS
>
>
>
> EOGeneralAdaptorException: updateValuesInRowDescribedByQualifier --
> er.extensions.jdbc.ERXJDBCAdaptor$Channel method failed to update row in
> database
> at
> com.webobjects.eoaccess.EODatabaseContext._exceptionWithDatabaseContextInformationAdded(EODatabaseContext.java:4504)
> ... skipped 1 stack elements
> at
> com.webobjects.eocontrol.EOObjectStoreCoordinator.saveChangesInEditingContext(EOObjectStoreCoordinator.java:376)
> at
> com.webobjects.eocontrol.EOEditingContext.saveChanges(EOEditingContext.java:3192)
> at er.extensions.eof.ERXEC._saveChanges(ERXEC.java:1179)
> at er.extensions.eof.ERXEC.saveChanges(ERXEC.java:1102)
> at
> er.directtoweb.pages.ERD2WInspectPage.tryToSaveChanges(ERD2WInspectPage.java:232)
> at
> er.directtoweb.pages.ERD2WInspectPage.submitAction(ERD2WInspectPage.java:282)
> at
> er.modern.look.pages.ERMODInspectPage.submitAction(ERMODInspectPage.java:101)
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