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[55555] 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
> er.extensions.appserver.ERXApplication.invokeAction(ERXApplication.java:1846)
> at
> com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedPage(WOComponentRequestHandler.java:206)
> at
> com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedSession(WOComponentRequestHandler.java:298)
> at
> com.webobjects.appserver._private.WOComponentRequestHandler._dispatchWithPreparedApplication(WOComponentRequestHandler.java:332)
> at
> com.webobjects.appserver._private.WOComponentRequestHandler._handleRequest(WOComponentRequestHandler.java:369)
> at
> com.webobjects.appserver._private.WOComponentRequestHandler.handleRequest(WOComponentRequestHandler.java:442)
> at
> com.webobjects.appserver.WOApplication.dispatchRequest(WOApplication.java:1687)
> at
> er.extensions.appserver.ERXApplication.dispatchRequestImmediately(ERXApplication.java:1961)
> at
> er.extensions.appserver.ERXApplication.dispatchRequest(ERXApplication.java:1926)
> at
> com.webobjects.appserver._private.WOWorkerThread.runOnce(WOWorkerThread.java:144)
> at
> com.webobjects.appserver._private.WOWorkerThread.run(WOWorkerThread.java:226)
> at java.lang.Thread.run(Thread.java:637)
>
>
> Thanks
>
> kib
>
> "We keep moving forward, opening new doors, and doing new things, because
> we're curious and curiosity keeps leading us down new paths."
> Walt Disney
>
> Klaus Berkling
> Web Application Dev. & Systems Administrator
> DynEd International, Inc.
> www.dyned.com | www.eskimo.com/~kiberkli
>
>
>
>
> _______________________________________________
> Do not post admin requests to the list. They will be ignored.
> Webobjects-dev mailing list ([email protected])
> Help/Unsubscribe/Update your Subscription:
> http://lists.apple.com/mailman/options/webobjects-dev/dleber_wodev%40codeferous.com
>
> This email sent to [email protected]
;david
--
David LeBer
Codeferous Software
'co-def-er-ous' adj. Literally 'code-bearing'
site: http://codeferous.com
blog: http://davidleber.net
profile: http://www.linkedin.com/in/davidleber
twitter: http://twitter.com/rebeld
--
Toronto Area Cocoa / WebObjects developers group:
http://tacow.org
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list ([email protected])
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com
This email sent to [email protected]
