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cross-model relationships problem
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cross-model relationships problem

  • Subject: cross-model relationships problem
  • From: Lachlan Deck <email@hidden>
  • Date: Mon, 19 Nov 2007 18:00:45 +1100
I've got a many-to-many join like so (flattened):
EntityA(ModelA)<<--JoinAB(ModelA)-->>EntityB(ModelB)

However, I'm getting an sql exception being thrown when it's attempting to insert the join record. It seems to be ignoring the fact that the tables are in a different database, and is attempting to find EntityA in ModelB's datastore!

Should this be working? Is the flattening the problem when crossing models? Any other ideas on how to get this working?

Thanks.

with regards,
--

Lachlan Deck

com.webobjects.jdbcadaptor.JDBCAdaptorException: EvaluateExpression failed: <com.webobjects.jdbcadaptor.MySQLPlugIn$MySQLExpression: "SELECT t0.created, etc... t0.id, t0.modified, ... FROM EntityB t0, EntityA T2, JoinAB T1 WHERE T2.id = ? AND T1.entityAId = T2.id AND t0.id = T1.entityBId" withBindings: 1:5537(id)>:
Next exception:SQL State:42S02 -- error code: 1146 -- msg: Table 'db_B.EntityA' doesn't exist
at com.webobjects.jdbcadaptor.JDBCContext._jdbcErrorWithChannel (JDBCContext.java:138)
at com.webobjects.jdbcadaptor.JDBCChannel._evaluateExpression (JDBCChannel.java:310)
at com.webobjects.jdbcadaptor.JDBCChannel.evaluateExpression (JDBCChannel.java:261)
at com.webobjects.jdbcadaptor.JDBCChannel.selectAttributes (JDBCChannel.java:185)
at com.webobjects.eoaccess.EODatabaseChannel._selectWithFetchSpecificationE ditingContext(EODatabaseChannel.java:878)
at com.webobjects.eoaccess.EODatabaseChannel.selectObjectsWithFetchSpecific ation(EODatabaseChannel.java:215)
at com.webobjects.eoaccess.EODatabaseContext._objectsWithFetchSpecification EditingContext(EODatabaseContext.java:3205)
at com.webobjects.eoaccess.EODatabaseContext.objectsWithFetchSpecification( EODatabaseContext.java:3346)
at com.webobjects.eocontrol.EOObjectStoreCoordinator.objectsWithFetchSpecif ication(EOObjectStoreCoordinator.java:539)
at com.webobjects.eocontrol.EOEditingContext.objectsWithFetchSpecification( EOEditingContext.java:4114)
at er.extensions.ERXEC.objectsWithFetchSpecification (ERXEC.java:1068)
at com.webobjects.eoaccess.EODatabaseContext.objectsForSourceGlobalID (EODatabaseContext.java:4260)
at com.webobjects.eocontrol.EOObjectStoreCoordinator.objectsForSourceGlobal ID(EOObjectStoreCoordinator.java:682)
at com.webobjects.eocontrol.EOEditingContext.objectsForSourceGlobalID (EOEditingContext.java:3965)
at er.extensions.ERXEC.objectsForSourceGlobalID(ERXEC.java: 1029)
at com.webobjects.eoaccess.EODatabaseContext._fireArrayFault (EODatabaseContext.java:4427)
at com.webobjects.eoaccess.EOAccessArrayFaultHandler.completeInitialization OfObject(EOAccessArrayFaultHandler.java:70)
at com.webobjects.eocontrol._EOCheapCopyMutableArray.willRead (_EOCheapCopyMutableArray.java:38)
at com.webobjects.eocontrol._EOCheapCopyMutableArray.count (_EOCheapCopyMutableArray.java:92)
at com.webobjects.eocontrol.EOClassDescription.propagateDeleteForObject (EOClassDescription.java:511)
at com.webobjects.eocontrol.EOCustomObject.propagateDeleteWithEditingContex t(EOCustomObject.java:688)
at com.webobjects.eocontrol.EOEditingContext.propagateDeletesUsingTable (EOEditingContext.java:2231)
at com.webobjects.eocontrol.EOEditingContext._processDeletedObjects (EOEditingContext.java:2193)
at com.webobjects.eocontrol.EOEditingContext._processRecentChanges (EOEditingContext.java:1744)
at com.webobjects.eocontrol.EOEditingContext.processRecentChanges (EOEditingContext.java:1951)
at er.extensions.ERXEC.processRecentChanges(ERXEC.java:616)
at er.extensions.ERXEnterpriseObject $Observer.editingContextWillSaveChanges(ERXEnterpriseObject.java:41)
at sun.reflect.GeneratedMethodAccessor69.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.webobjects.foundation.NSSelector._safeInvokeMethod (NSSelector.java:120)
at com.webobjects.foundation.NSNotificationCenter $_Entry.invokeMethod(NSNotificationCenter.java:601)
at com.webobjects.foundation.NSNotificationCenter.postNotification (NSNotificationCenter.java:545)
at com.webobjects.foundation.NSNotificationCenter.postNotification (NSNotificationCenter.java:559)
at er.extensions.ERXEC.saveChanges(ERXEC.java:861)
<...>
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