add object page and manage genres

fiori/app/admin-books/fiori-service.cds

@@ -115,3 +115,5 @@ extend service AdminService {
 
 // Workaround for Fiori popup for asking user to enter a new UUID on Create
 annotate AdminService.Books with { ID @Core.Computed; }
+
+using from './tree-view';

fiori/app/admin-books/tree-view.cds

@@ -0,0 +1,42 @@
+using { AdminService } from '@capire/bookstore';
+
+////////////////////////////////////////////////////////////////////////////
+//
+//	Contents Tree Table Annotations
+//
+
+// Tell Fiori about the structure of the hierarchy
+annotate AdminService.Contents with @Aggregation.RecursiveHierarchy #ContentsHierarchy : {
+  ParentNavigationProperty : parent, // navigates to a node's parent
+  NodeProperty             : ID, // identifies a node, usually the key
+};
+
+// Fiori expects the following to be defined explicitly, even though they're always the same
+extend AdminService.Contents with @(
+  // The columns expected by Fiori to be present in hierarchy entities
+  Hierarchy.RecursiveHierarchy #ContentsHierarchy : {
+    LimitedDescendantCount : LimitedDescendantCount,
+    DistanceFromRoot       : DistanceFromRoot,
+    DrillState             : DrillState,
+    LimitedRank            : LimitedRank
+  },
+  // Disallow filtering on these properties from Fiori UIs
+  Capabilities.FilterRestrictions.NonFilterableProperties: [
+    'LimitedDescendantCount',
+    'DistanceFromRoot',
+    'DrillState',
+    'LimitedRank'
+  ],
+  // Disallow sorting on these properties from Fiori UIs
+  Capabilities.SortRestrictions.NonSortableProperties    : [
+    'LimitedDescendantCount',
+    'DistanceFromRoot',
+    'DrillState',
+    'LimitedRank'
+  ],
+) columns { // Ensure we can query these fields from database
+  null as LimitedDescendantCount : Int16,
+  null as DistanceFromRoot       : Int16,
+  null as DrillState             : String,
+  null as LimitedRank            : Int16,
+};