examples

orders/db/schema.cds

@@ -1,24 +1,32 @@
 using { Currency, User, managed, cuid } from '@sap/cds/common';
+// using {Orders, OrderItems} from './schema';
+
 namespace sap.capire.orders;
 
-entity Orders : cuid, managed {
-  OrderNo  : String @title:'Order Number'; //> readable key
-  Items    : Composition of many {
+entity Products {
+  key ID : String;
+}
+
+entity OrdersHeaders : managed {
+  key ID   : UUID;
+  OrderNo  : String @title:'Order Number'; //> readable key 
+  buyer    : User;
+  currency : Currency;
+  Items    : Composition of many OrdersItems on Items.Header = $self;
+}
+
+entity OrdersItems   {
     key ID    : UUID;
     product   : Association to Products;
     quantity  : Integer;
     title     : String; //> intentionally replicated as snapshot from product.title
     price     : Double; //> materialized calculated field
-  };
-  buyer    : User;
-  currency : Currency;
-}
-
-/** This is a stand-in for arbitrary ordered Products */
-entity Products @(cds.persistence.skip:'always') {
-  key ID : String;
-}
+    Header    : Association to OrdersHeaders;  
+};
+
+
+
+    
+
 
 
-// this is to ensure we have filled-in currencies
-using from '@capire/common';