initial upload of extension sample

node_modules/_base/srv/mashup.cds

@@ -0,0 +1,27 @@
+////////////////////////////////////////////////////////////////////////////
+//
+//    Mashing up imported models...
+//
+
+using { sap.capire.bookshop.Books } from '../db/schema';
+
+//
+//  Extend Books with access to Reviews and average ratings
+//
+
+/*
+using { ReviewsService.Reviews } from '@capire/reviews';
+extend Books with {
+  reviews : Composition of many Reviews on reviews.subject = $self.ID;
+  rating  : Decimal;
+}
+*/
+
+//
+//  Extend Orders with Books as Products
+//
+
+using { sap.capire.orders.Orders_Items } from '../db/schema';
+extend Orders_Items with {
+  book : Association to Books on product.ID = book.ID
+}