On Oct 16, 2007, at 12:13 PM, Fred Wells wrote:
I am trying to get a reflexive many to many relationship to work and
it won't budge. I have read through all of th previous postings on
this and nothing gives an definitive answer on this and my attempts
to follow what had been put up still hasn't worked for me. When
trying to add to the relationship through addObjectsToBoth... I get
this error with one side of the relationship:
java.lang.IllegalStateException: A valid global ID could not be
obtained for entity named TaskToTask, relationship named
previousTasks, primary key dictionary {previousTaskPkid = 4; }.
at
com
.webobjects
.eoaccess
.EODatabaseContext
.databaseOperationForIntermediateRowFromSourceObject
(EODatabaseContext.java:5061)
at
com
.webobjects
.eoaccess
.EODatabaseContext
.recordInsertForIntermediateRowFromSourceObject
(EODatabaseContext.java:5077)
at
com
.webobjects
.eoaccess
.EODatabaseContext
.relayAttributesInRelationshipSourceObjectDestinationObject
(EODatabaseContext.java:5103)
I filed a WO 5.2.3 bug report that included the identical exception
and backtrace. In my case, the many-to-many reflexive relationship
was in an abstract base entity in a vertical inheritance scheme with
the join entity abstract as well. When I tried to create a new many-
to-many relationship in a concrete derived entity, the exception was
thrown. But when the many-to-many reflexive relationship was defined
in a concrete derived entity instead of in the abstract base entity,
no exception was thrown. Also, using single-table rather than
vertical inheritance worked correctly.
But you didn't mention inheritance, so maybe your situation is
totally different.
Aloha,
Art
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