On 2010-09-10, at 9:42 PM, Klaus Berkling wrote:
I have been looking at David LaBer excellent D2W screencast for ExcelLook
(http://davidleber.net/?p=369) and it seemed fairly easy.
I've followed the screencast very closely but yet I see the following error
when invoking the excellook:
Couldn't find the dynamic page named ListExcelParticipants in your
DirectToWeb model.entity is null, it seems that one model, maybe
ERDirectToWeb d2w.d2wmodel is not loaded!
This is weird: model.entity is null. Specifying the entity as
EOEntityClassDescription.classDescriptionForEntityName(AttendeeSelectedVEvent.ENTITY_NAME)
makes no difference.
I've verified the page configuration name.
This is the only D2W part in the whole app, this is a Wonder app
(ERXApplication, ERXSession).
WO 5.4.3
(Where do I find the WOnder build number?)
WOLips 3.5.6066
There is only one poi file in
/Library/Frameworks/ExcelGenerator.framework/Resources/Java, if that makes a
difference: poi-3.2-FINAL-20081019.jar
I don't think it gets that far.
Any thoughts anyone, all you D2W people, Daves?
Here is the code:
public WOActionResults downloadAsExcelAction() {
ListPageInterface lpi =
(ListPageInterface)D2W.factory().pageForConfigurationNamed(
ListExcelParticipants,
session()
);
//EOArrayDataSource ds = new EOArrayDataSource(null, ec);
EOArrayDataSource ds = new EOArrayDataSource(
EOEntityClassDescription.classDescriptionForEntityName(
AttendeeSelectedVEvent.ENTITY_NAME
),
ec
);
ds.setArray(attendeeSelectedVEventList);
lpi.setDataSource(ds);
lpi.setNextPage(this.context().page());
return (WOActionResults)lpi;
}
Wait, what!?
The page configuration name is not arbitrary, if your entity is named
'AttendeeSelectedVEvent', then the page configuration needs to be
ListExcelAttendeeSelectedVEvent
D2W uses the name of the page configuration to figure out what kind of entity
it is working with.
This is my d2wmodel (user.d2wmodel):
{
rules = (
{
author = 1000;
class = com.webobjects.directtoweb.Rule;
lhs = {
class = com.webobjects.eocontrol.EOKeyValueQualifier;
key = pageConfiguration;
selectorName = isEqualTo;
value = ListExcelParticipants;
};
rhs = {
class = com.webobjects.directtoweb.Assignment;
keyPath = displayPropertyKeys;
value = (
attendee.nameFamily,
attendee.nameGiven,
participant
);
};
}
);
}
The exception goes off into the weeds:
Sep 10 17:53:05 Conference[5] ERROR
er.extensions.appserver.ERXApplication - Couldn't find the dynamic page
named ListExcelParticipants in your DirectToWeb model.entity is null, it
seems that one model, maybe ERDirectToWeb d2w.d2wmodel is not loaded!
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.webobjects.foundation.NSKeyValueCoding$ValueAccessor$1.methodValue(NSKeyValueCoding.java:636)
at
com.webobjects.foundation.NSKeyValueCoding$_MethodBinding.valueInObject(NSKeyValueCoding.java:1134)
at
com.webobjects.foundation.NSKeyValueCoding$DefaultImplementation.valueForKey(NSKeyValueCoding.java:1324)
at
com.webobjects.appserver.WOComponent.valueForKey(WOComponent.java:1736)
at
com.webobjects.foundation.NSKeyValueCoding$Utility.valueForKey(NSKeyValueCoding.java:447)
at
com.webobjects.foundation.NSKeyValueCodingAdditions$DefaultImplementation.valueForKeyPath(NSKeyValueCodingAdditions.java:212)
at
com.webobjects.appserver.WOComponent.valueForKeyPath(WOComponent.java:1804)
at
com.webobjects.appserver._private.WOKeyValueAssociation.valueInComponent(WOKeyValueAssociation.java:50)
at
com.webobjects.appserver._private.WOHyperlink.invokeAction(WOHyperlink.java:98)
at
er.extensions.components._private.ERXHyperlink.invokeAction(ERXHyperlink.java:66)
at
com.webobjects.appserver._private.WODynamicGroup.invokeChildrenAction(WODynamicGroup.java:105)
at
com.webobjects.appserver._private.WODynamicGroup.invokeAction(WODynamicGroup.java:115)
at
com.webobjects.appserver.WOComponent.invokeAction(WOComponent.java:1079)
at
er.extensions.components.ERXComponent.invokeAction(ERXComponent.java:92)
at com.webobjects.appserver.WOSession.invokeAction(WOSession.java:1357)
at
com.webobjects.appserver.WOApplication.invokeAction(WOApplication.java:1745)
at
er.extensions.appserver.ajax.ERXAjaxApplication.invokeAction(ERXAjaxApplication.java:93)
at
