Simplified Extension Example

srv/extension_service_ui_fields.cds

@@ -0,0 +1,70 @@
+using from '_base/app/services';
+using OrdersService from './extension_service';
+
+
+// extend existing entity Orders with new extension fields and new composition
+
+@odata.draft.enabled
+annotate OrdersService.Orders with @(UI : {
+  LineItem            : [
+    {
+      Value : OrderNo,
+      Label : 'OrderNo'
+    },
+    {
+      Value : Z_orderInfo,
+      Label : 'Additional Information'
+    }, // extension field
+    {
+      Value : Z_internalNo,
+      Label : 'Internal Order Number'
+    }, // extension field
+    {
+      Value : Z_expectedDelivery,
+      Label : 'Expecxted Delivery Date'
+    }, // extension field
+    {
+      Value : Z_priority,
+      Label : 'Priority'
+    }, // extension field
+    {
+      Value : Z_discount,
+      Label : 'Discount'
+    }, // extension field
+    {
+      Value : createdAt,
+      Label : 'Date'
+    },
+  ],
+  FieldGroup #Details : {Data : [
+    {
+      Value : currency_code,
+      Label : 'Currency'
+    },
+    {
+      Value : Z_orderInfo,
+      Label : 'Additional Information'
+    }, // extension field
+    {
+      Value : Z_internalNo,
+      Label : 'Internal Order Number'
+    }, // extension field
+    {
+      Value : Z_expectedDelivery,
+      Label : 'Expected Delivery Date'
+    }, // extension field
+    {
+      Value : Z_priority,
+      Label : 'Priority'
+    }, // extension field
+    {
+      Value : Z_discount,
+      Label : 'Discount'
+    }, // extension field
+  ]},
+})
+
+{
+  createdAt @UI.HiddenFilter : false;
+  createdBy @UI.HiddenFilter : false;
+};