Owen,
When you have a to-one relationship that's mandatory, EOF will
automatically create the related object for you. If you then create
your own and call the to-one relationship set method, the one EOF
created for you will just be floating around in the editing context.
So, the one you created will save fine, and the one created by EOF
will not be initialized. That's usually the problem with your set of
circumstances.
Ken
On Jun 1, 2006, at 9:27 PM, Owen McKerrow wrote:
Hi All,
We're working with a 3rd Party DB that we can't modify the schema
of and are receiving a strange error when trying to add a new row
to a particular table.
Below is the SQL that WO is generating and below that the error
that is produced. Its an Orcale 9i DB. However when we look at the
DB the row has actually been added !
Any ideas on what's causing the error ? And why the row is still
being made in the DB despite the fact that the Commit is meant to
have failed.
"INSERT INTO TRACKINGOBJECTRESULTS
(RESTARTTOPIC,
HIGHQUIZDATE,
ATTEMPTS,
TRACKINGOBJECTSTATUS,
RESTARTID,
TRACKINGOBJECTID,
RECIPIENTID,
TRACKINGOBJECTSTARTDATE,
TRACKINGOBJECTSTATDATE,
SUBTOPICTRACKING,
TRACKINGOBJECTLASTDATE,
HIGHQUIZSCORE)
VALUES
(NULL, NULL, NULL, ?, NULL, ?, ?, ?, ?, NULL, ?, NULL)"
withBindings:
1:"1"(trackingObjectStatus),
2:"3"(trackingObjectId),
3:219(recipientId),
4:2006-06-02 10:08:46(trackingObjectStartDate),
5:2006-06-02 10:08:46(trackingObjectStatDate),
6:2006-06-02 10:08:47(trackingObjectLastDate)>
10:09:40,653 DEBUG [WorkerThread0] (Log.NSLogDebug:1546 appendln)
- === Commit Internal Transaction
10:09:40,662 DEBUG [WorkerThread0] (Log.NSLogDebug:1546 appendln) -
Commit failed on data source of type class
com.webobjects.eoaccess.EODatabaseContext
10:09:40,678 DEBUG [WorkerThread0] (Log.NSLogDebug:1546 appendln) -
java.lang.IllegalArgumentException: Attempt to insert null object
into an com.webobjects.foundation.NSMutableDictionary.
at com.webobjects.foundation.NSMutableDictionary.setObjectForKey
(NSMutableDictionary.java:199)
at com.webobjects.eoaccess.EODatabaseContext.commitChanges
(EODatabaseContext.java:6515)
at
com.webobjects.eocontrol.EOObjectStoreCoordinator.saveChangesInEditing
Context(EOObjectStoreCoordinator.java:425)
at com.webobjects.eocontrol.EOEditingContext.saveChanges
(EOEditingContext.java:3226)
at Main.save(Main.java:279)
at Main.checkRecipient(Main.java:264)
at Main.checkLogin(Main.java:115)
Owen McKerrow
WebMaster, emlab
Ph : +61 02 4221 5517
http://emlab.uow.edu.au
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - -
"I like the way this project has somehow, against all common sense,
got itself made."
- Peter Jackson, "The Lord of The Rings"
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