Re: Reflexive Many-To-Many won't budge
Re: Reflexive Many-To-Many won't budge
- Subject: Re: Reflexive Many-To-Many won't budge
- From: Art Isbell <email@hidden>
- Date: Tue, 16 Oct 2007 13:25:31 -1000
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. |
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