From 2eaf55fce3f9bd4efe567ec16038db4012f1e4f5 Mon Sep 17 00:00:00 2001
From: eric-martin <emart.tigers@gmail.com>
Date: Fri, 29 Mar 2019 19:57:18 -0500
Subject: [PATCH] BAEL-1961: Fixed UserModelListener.onBeforeConvert()

---
 .../java/com/baeldung/mongodb/events/UserModelListener.java   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/persistence-modules/spring-boot-persistence-mongodb/src/main/java/com/baeldung/mongodb/events/UserModelListener.java b/persistence-modules/spring-boot-persistence-mongodb/src/main/java/com/baeldung/mongodb/events/UserModelListener.java
index 24b53f3d2d..2fe81f7ef4 100644
--- a/persistence-modules/spring-boot-persistence-mongodb/src/main/java/com/baeldung/mongodb/events/UserModelListener.java
+++ b/persistence-modules/spring-boot-persistence-mongodb/src/main/java/com/baeldung/mongodb/events/UserModelListener.java
@@ -21,7 +21,9 @@ public class UserModelListener extends AbstractMongoEventListener<User> {
 
     @Override
     public void onBeforeConvert(BeforeConvertEvent<User> event) {
-        event.getSource().setId(sequenceGenerator.generateSequence(User.SEQUENCE_NAME));
+        if (event.getSource().getId() < 1) {
+            event.getSource().setId(sequenceGenerator.generateSequence(User.SEQUENCE_NAME));
+        }
     }