My model also has:
columnName = "";
for my derived attributes - maybe that matters?
John
On Fri, Feb 26, 2010 at 1:51 PM, Kieran Kelleher <[email protected]>wrote:
> Hi all,
>
> I tried adding a simple derived attribute to a model, as shown here:
>
>
> http://idisk.me.com/kelleherk/Public/Pictures/Skitch/derived_attribute-20100226-125124.jpg
>
> However EOF falls over as soon as I touch that entity with an error like
> the following. This is WO 5.3.3 btw. Looking at the source in
> EOSQLExpression, it would seem that the attribute_definitionArray is null,
> because if it is null, then the method tries to get a column name and throws
> this exception when there is no column name.. The eomodel itself shows the
> attribute like this in the plist:
>
> {
> allowsNull = Y;
> definition = oid;
> externalType = INT;
> name = uniqueID;
> valueClassName = NSNumber;
> valueType = i;
> }
>
>
>
> So now I put a few statements in didFinishLaunhcing to grab that
> EOAttribute and check in the debugger and I find that the _definitionArray
> is empty. That does not seem right, does it?
>
>
> http://idisk.me.com/kelleherk/Public/Pictures/Skitch/emptydefinitionarray-20100226-131150.jpg
>
> Any ideas why this would not work, or how to troubleshoot it if it should
> work?
>
> I know Wonder uses programmatically created derived attributes for COUNT(*)
> and aggregate functions, but is there anyone out there using model-defined
> derived attributes successfully?
>
> java.lang.IllegalStateException: sqlStringForAttribute: attempt to
> generate SQL for attribute 'uniqueID' on entity 'CTMessage' with undefined
> column name. You must define a column name for this attribute before
> attempting a database operation.
> at com.webobjects.eoaccess.EOSQLExpression.sqlStringForAttribute(
> EOSQLExpression.java:2064)
> at com.webobjects.jdbcadaptor.JDBCExpression.addSelectListAttribute(
> JDBCExpression.java:362)
> at
> com.webobjects.eoaccess.EOSQLExpression.prepareSelectExpressionWithAttributes(
> EOSQLExpression.java:1006)
> at
> com.webobjects.jdbcadaptor.JDBCExpression.prepareSelectExpressionWithAttributes(
> JDBCExpression.java:273)
> at
> com.webobjects.eoaccess.EOSQLExpressionFactory.selectStatementForAttributes(
> EOSQLExpressionFactory.java:226)
> at er.extensions.jdbc.ERXSQLHelper.sqlExpressionForFetchSpecification(
> ERXSQLHelper.java:635)
> at er.extensions.jdbc.ERXSQLHelper.sqlExpressionForFetchSpecification(
> ERXSQLHelper.java:569)
> at er.extensions.jdbc.ERXSQLHelper.rowCountForFetchSpecification(
> ERXSQLHelper.java:1110)
> at er.extensions.eof.ERXEOAccessUtilities.rowCountForFetchSpecification(
> ERXEOAccessUtilities.java:458)
> at er.extensions.batching.ERXBatchingDisplayGroup.rowCount(
> ERXBatchingDisplayGroup.java:292)
> at er.extensions.batching.ERXBatchingDisplayGroup.refetch(
> ERXBatchingDisplayGroup.java:362)
> at er.extensions.batching.ERXBatchingDisplayGroup.fetch(
> ERXBatchingDisplayGroup.java:438)
> at wk.eofextensions.WKEOUtils.displayGroupWithFetchSpecification(
> WKEOUtils.java:1061)
> at wk.cheetah.wocomponents.MessagesPage.dg(MessagesPage.java:52)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(
> NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:592)
> at
> com.webobjects.foundation.NSKeyValueCoding$ValueAccessor$1.methodValue(
> NSKeyValueCoding.java:684)
> at
> com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(
> NSKeyValueCoding.java:1160)
> at
> com.webobjects.foundation.NSKeyValueCoding$DefaultImplementation.valueForKey(
> NSKeyValueCoding.java:1268)
> at com.webobjects.appserver.WOComponent.valueForKey(
> WOComponent.java:1539)
> at com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(
> NSKeyValueCoding.java:498)
> at
> com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(
> NSKeyValueCodingAdditions.java:212)
> at com.webobjects.appserver.WOComponent.valueForKeyPath(
> WOComponent.java:1600)
> at
> com.webobjects.appserver._private.WOKeyValueAssociation.valueInComponent(
> WOKeyValueAssociation.java:46)
> at com.webobjects.appserver.WOComponent.valueForBinding(
> WOComponent.java:735)
> at er.extensions.batching.ERXFlickrBatchNavigation.displayGroup(
> ERXFlickrBatchNavigation.java:82)
> at er.extensions.batching.ERXFlickrBatchNavigation.batchCount(
> ERXFlickrBatchNavigation.java:285)
> at er.extensions.batching.ERXFlickrBatchNavigation.hasMultiplePages(
> ERXFlickrBatchNavigation.java:94)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(
> NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(
> DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:592)
> at
> com.webobjects.foundation.NSKeyValueCoding$ValueAccessor$1.methodValue(
> NSKeyValueCoding.java:684)
> at
> com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(
> NSKeyValueCoding.java:1160)
> at
> com.webobjects.foundation.NSKeyValueCoding$DefaultImplementation.valueForKey(
> NSKeyValueCoding.java:1268)
> at com.webobjects.appserver.WOComponent.valueForKey(
> WOComponent.java:1539)
> at com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(
> NSKeyValueCoding.java:498)
> at
> com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(
> NSKeyValueCodingAdditions.java:212)
> at com.webobjects.appserver.WOComponent.valueForKeyPath(
> WOComponent.java:1600)
> at
> com.webobjects.appserver._private.WOKeyValueAssociation.valueInComponent(
> WOKeyValueAssociation.java:46)
> at com.webobjects.appserver.WOAssociation.booleanValueInComponent(
> WOAssociation.java:278)
> at
> er.extensions.components.conditionals.ERXWOConditional.conditionInComponent(
> ERXWOConditional.java:47)
> at
> er.extensions.components.conditionals.ERXWOConditional.meetsConditionInComponent(
> ERXWOConditional.java:52)
> at
> er.extensions.components.conditionals.ERXWOConditional.appendToResponse(
> ERXWOConditional.java:120)
> at
> com.webobjects.appserver._private.WODynamicGroup.appendChildrenToResponse(
> WODynamicGroup.java:121)
> at com.webobjects.appserver._private.WODynamicGroup.appendToResponse(
> WODynamicGroup.java:130)
> at com.webobjects.appserver.WOComponent.appendToResponse(
> WOComponent.java:992)
> at er.extensions.components.ERXComponent.appendToResponse(
> ERXComponent.java:107)
> at
> com.webobjects.appserver._private.WOComponentReference.appendToResponse(
> WOComponentReference.java:111)
> at
> com.webobjects.appserver._private.WODynamicGroup.appendChildrenToResponse(
> WODynamicGroup.java:121)
> at com.webobjects.appserver._private.WODynamicGroup.appendToResponse(
> WODynamicGroup.java:130)
> at com.webobjects.appserver._private.WOComponentContent.appendToResponse(
> WOComponentContent.java:43)
> at
> com.webobjects.appserver._private.WODynamicGroup.appendChildrenToResponse(
> WODynamicGroup.java:121)
> at com.webobjects.appserver._private.WOGenericContainer.appendToResponse(
> WOGenericContainer.java:32)
> at
> com.webobjects.appserver._private.WODynamicGroup.appendChildrenToResponse(
> WODynamicGroup.java:121)
> at com.webobjects.appserver._private.WODynamicGroup.appendToResponse(
> WODynamicGroup.java:130)
> at com.webobjects.appserver.WOComponent.appendToResponse(
> WOComponent.java:992)
> at er.extensions.components.ERXComponent.appendToResponse(
> ERXComponent.java:107)
> at wk.webobjects.appserver.WKAbstractComponent.appendToResponse(
> WKAbstractComponent.java:487)
> at wk.cheetah.wocomponents.PageWrapper.appendToResponse(
> PageWrapper.java:247)
> at
> com.webobjects.appserver._private.WOComponentReference.appendToResponse(
> WOComponentReference.java:111)
> at
> com.webobjects.appserver._private.WODynamicGroup.appendChildrenToResponse(
> WODynamicGroup.java:121)
> at com.webobjects.appserver._private.WODynamicGroup.appendToResponse(
> WODynamicGroup.java:130)
> at com.webobjects.appserver.WOComponent.appendToResponse(
> WOComponent.java:992)
> at er.extensions.components.ERXComponent.appendToResponse(
> ERXComponent.java:107)
> at wk.webobjects.appserver.WKAbstractComponent.appendToResponse(
> WKAbstractComponent.java:487)
> at com.webobjects.appserver.WOSession.appendToResponse(
> WOSession.java:1200)
> at er.extensions.appserver.ERXSession.appendToResponse(
> ERXSession.java:540)
> at wk.webobjects.appserver.WKSession.appendToResponse(WKSession.java:211
> )
> at wk.cheetah.Session.appendToResponse(Session.java:442)
> at com.webobjects.appserver.WOApplication.appendToResponse(
> WOApplication.java:1418)
> at er.extensions.appserver.ERXApplication.appendToResponse(
> ERXApplication.java:1817)
> at
> com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedPage(
> WOComponentRequestHandler.java:230)
> at
> com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedSession(
> WOComponentRequestHandler.java:287)
> at
> com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedApplication(
> WOComponentRequestHandler.java:322)
> at
> com.webobjects.appserver._private.WOComponentRequestHandler._handleRequest(
> WOComponentRequestHandler.java:358)
> at
> com.webobjects.appserver._private.WOComponentRequestHandler.handleRequest(
> WOComponentRequestHandler.java:435)
> at com.webobjects.appserver.WOApplication.dispatchRequest(
> WOApplication.java:1306)
> at er.extensions.appserver.ERXApplication.dispatchRequestImmediately(
> ERXApplication.java:1915)
> at er.extensions.appserver.ERXApplication.dispatchRequest(
> ERXApplication.java:1880)
> at wk.webobjects.appserver.WKApplication.dispatchRequest(
> WKApplication.java:276)
> at com.webobjects.appserver._private.WOWorkerThread.runOnce(
> WOWorkerThread.java:173)
> at com.webobjects.appserver._private.WOWorkerThread.run(
> WOWorkerThread.java:254)
> at java.lang.Thread.run(Thread.java:613)
>
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