.

fiori/srv/mashup.cds

@@ -19,7 +19,7 @@ extend Books with {
 //  Extend Orders with Books as Products
 //
 
-using { sap.capire.orders.Orders_Items } from '@capire/orders';
-extend Orders_Items with {
+using { sap.capire.orders.Orders } from '@capire/orders';
+extend Orders.Items with {
   book : Association to Books on product.ID = book.ID
 }

orders/.env

@@ -1,2 +1,3 @@
 cds.requires.messaging.kind = file-based-messaging
 PORT = 4006
+# cds.odata.flavor = x4

orders/app/orders/fiori-service.cds

@@ -11,6 +11,7 @@
 
 
 using { OrdersService } from '../../srv/orders-service';
+using { sap.common } from '@capire/common';
 
 
 @odata.draft.enabled
@@ -68,7 +69,7 @@ annotate OrdersService.Orders with @(
 
 
 
-annotate OrdersService.Orders_Items with @(
+annotate OrdersService.Orders.Items with @(
 	UI: {
 		LineItem: [
 			{Value: product_ID, Label:'Product ID'},
@@ -77,13 +78,22 @@ annotate OrdersService.Orders_Items with @(
 			{Value: amount, Label:'Quantity'},
 		],
 		Identification: [ //Is the main field group
+			{Value: product_ID, Label:'Product ID'},
+			{Value: title, Label:'Product Title'},
 			{Value: amount, Label:'Amount'},
-			{Value: title, Label:'Product'},
 			{Value: price, Label:'Unit Price'},
 		],
 		Facets: [
 			{$Type: 'UI.ReferenceFacet', Label: '{i18n>OrderItems}', Target: '@UI.Identification'},
 		],
+		HeaderInfo: {
+			TypeName: 'Order Item', TypeNamePlural: 'Order Items',
+			Title: {
+				Label: 'Product ID ', //A label is possible but it is not considered on the ObjectPage yet
+				Value: product_ID
+			},
+			Description: {Value: createdBy}
+		},
 	},
 ) {
 	amount @(

orders/db/schema.cds

@@ -3,17 +3,17 @@ namespace sap.capire.orders;
 
 entity Orders : cuid, managed {
   OrderNo  : String @title:'Order Number'; //> readable key
-  Items    : Composition of many Orders_Items on Items.up_ = $self;
+  Items    : Composition of many Orders.Items on Items.up_ = $self;
   buyer    : User;
   currency : Currency;
 }
 
-entity Orders_Items {
+entity Orders.Items {
+  /*key*/ up_   : Association to Orders; // REVISIT: 'key' doesn't work due to bug in runtime
   key ID    : UUID;
-  up_       : Association to Orders;
-  product   : Association to Products @assert.integrity:false; // REVISIT: this is a temporary workaround for a glitch in cds-runtime
+  product   : Association to Products;
   amount    : Integer;
-  title     : String; //> intentionally replicated as snapshot from product.title
+  title     : String; //> intentionally replicated as snapshot from product.title or alike
   price     : Double;
 }
 

orders/package.json

@@ -2,6 +2,7 @@
   "name": "@capire/orders",
   "version": "1.0.0",
   "dependencies": {
+    "@capire/common": "*",
     "@sap/cds": "^5"
   }
 }

orders/requests.http

@@ -0,0 +1,31 @@
+
+@Orders = http://localhost:4006/orders/Orders
+
+
+### Read Orders
+GET {{Orders}}?
+###
+GET {{Orders}}?$expand=Items
+###
+GET {{Orders}}(ID={{Order1}},IsActiveEntity=true)/Items
+
+
+
+@Order1 = 64e718c9-ff99-47f1-8ca3-950c850777d4
+@Order3 = e939604c-ab83-4d4f-bdb6-95fe30b3773e
+
+### Create order, still inactive
+POST {{Orders}}
+Content-Type: application/json
+
+{"ID": "{{Order3}}"}
+
+### Get inactive order.  We have to specify `IsActiveEntity`.
+GET {{Orders}}(ID={{Order3}},IsActiveEntity=false)
+
+### Activate order using `.../<servicename>.draftActivate`
+POST {{Orders}}(ID={{Order3}},IsActiveEntity=false)/OrdersService.draftActivate
+Content-Type: application/json
+
+### Get active order
+GET {{Orders}}(ID={{Order3}},IsActiveEntity=true)

orders/srv/orders-service.js

@@ -3,7 +3,7 @@ class OrdersService extends cds.ApplicationService {
 
   /** register custom handlers */
   init(){
-    const { Orders_Items:OrderItems } = this.entities
+    const { 'Orders.Items':OrderItems } = this.entities
 
     this.before ('UPDATE', 'Orders', async function(req) {
       const { ID, Items } = req.data