id is null when the entity has no records (#18)

vl-leon · web-flow · commit 9656b2d30150 · 2026-03-04T11:14:04.000+01:00
diff --git a/srv/src/main/java/customer/bookstore/AdminHandler.java b/srv/src/main/java/customer/bookstore/AdminHandler.java
@@ -46,6 +46,6 @@ void genId(EventContext ctx) {
       case DraftNewEventContext newCtx -> newCtx.getCqn().entries();
       default -> List.of();
     };
-    entries.forEach(m -> m.put("ID", id + 4)); // Note: that is not safe! ok for this sample only.
+    entries.forEach(m -> m.put("ID", id != null ? id + 4 : 0 )); // Note: that is not safe! ok for this sample only.
   }
 }

Original file line number	Diff line number	Diff line change
`@@ -46,6 +46,6 @@ void genId(EventContext ctx) {`
`46`	`46`	`case DraftNewEventContext newCtx -> newCtx.getCqn().entries();`
`47`	`47`	`default -> List.of();`
`48`	`48`	`};`
`49`		`- entries.forEach(m -> m.put("ID", id + 4)); // Note: that is not safe! ok for this sample only.`
	`49`	`+ entries.forEach(m -> m.put("ID", id != null ? id + 4 : 0 )); // Note: that is not safe! ok for this sample only.`
`50`	`50`	`}`
`51`	`51`	`}`