Fix: ensure name field is truncated to 255 characters before DB insert/update

Signed-off-by: Ayoub LABIDI <[email protected]>

Author: ayolab

src/main/java/org/gridsuite/studyconfig/server/entities/diagramgridlayout/diagramlayout/NetworkAreaDiagramLayoutEntity.java

@@ -32,4 +32,19 @@ public class NetworkAreaDiagramLayoutEntity extends AbstractDiagramLayoutEntity
 
     @Column(name = "name")
     String name;
+
+    // Maximum length for the name field
+    private static final int MAX_NAME_LENGTH = 255;
+    /**
+     * Ensures that the name does not exceed the maximum length.
+     * This method is called before persisting or updating the entity.
+     */
+    @PrePersist
+    @PreUpdate
+    private void truncateName() {
+        if (name != null && name.length() > MAX_NAME_LENGTH) {
+            name = name.substring(0, MAX_NAME_LENGTH);
+        }
+    }
+
 }