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WIP: dynamic UI.Hidden annotation #456

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WIP: dynamic UI.Hidden annotation #456

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5 changes: 3 additions & 2 deletions app/admin/fiori-service.cds
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Expand Up @@ -39,10 +39,11 @@ annotate AdminService.Books with @(UI : {
},
{
// TODO: should work dynamically
@UI.Hidden,
$Type : 'UI.ReferenceFacet',
Label : '{i18n>Contents}',
Target : 'contents/@UI.PresentationVariant'
Target : 'contents/@UI.PresentationVariant',
![@UI.Hidden] : contentsHidden
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@beckermarc beckermarc Mar 17, 2025

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I'm wondering if we can also refer to a Singleton entity here.


}
],
FieldGroup #General : {Data : [
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1 change: 1 addition & 0 deletions db/books.cds
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Expand Up @@ -23,6 +23,7 @@ entity Books : cuid, managed {
on reviews.book = $self;
isReviewable : TechnicalBooleanFlag not null default true;
contents : Composition of many Contents on contents.book = $self @odata.contained:false;
virtual contentsHidden : Boolean default false;
}

entity Authors : cuid, managed {
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38 changes: 38 additions & 0 deletions srv/src/main/java/my/bookshop/handlers/SetHiddenHandler.java
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@@ -0,0 +1,38 @@
package my.bookshop.handlers;


import java.util.List;
import java.util.Map;

import org.springframework.context.annotation.Profile;
import org.springframework.stereotype.Component;

import com.sap.cds.services.EventContext;
import com.sap.cds.services.handler.EventHandler;
import com.sap.cds.services.handler.annotations.After;
import com.sap.cds.services.handler.annotations.On;
import com.sap.cds.services.handler.annotations.ServiceName;

import cds.gen.adminservice.AdminService_;
import cds.gen.adminservice.Books_;

@Component
@ServiceName(AdminService_.CDS_NAME)
/**
* Example of a custom handler for nextSiblingAction
*/
@Profile("hybrid")
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@beckermarc beckermarc Mar 17, 2025

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I think in other areas we are using cloud

public class SetHiddenHandler implements EventHandler {

@After(entity = Books_.CDS_NAME)
void removeUIHidden(EventContext context){
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@beckermarc beckermarc Mar 17, 2025

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I think you should be able to use Result in the method signature.

Object result = context.get("result");
if (result instanceof Map row) {
row.put("contentsHidden", true);
} else if (result instanceof List rows && rows.size() == 1) {
((Map)rows.get(0)).put("contentsHidden", true);
}
}
}