From 566e55ef3d04188ec32589040c8a826e33f95c25 Mon Sep 17 00:00:00 2001
From: =?utf8?q?C=C3=A9dric=20Aguerre?= <cedric.aguerre@edf.fr>
Date: Wed, 25 Feb 2015 10:57:13 +0100
Subject: [PATCH] fix sigsegv when trying to visualize a mesh with no field
 from datasource controller

---
 src/MEDOP/gui/DatasourceController.cxx | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/MEDOP/gui/DatasourceController.cxx b/src/MEDOP/gui/DatasourceController.cxx
index d694f18bb..ad7c3f53c 100644
--- a/src/MEDOP/gui/DatasourceController.cxx
+++ b/src/MEDOP/gui/DatasourceController.cxx
@@ -303,6 +303,12 @@ void DatasourceController::OnVisualize() {
       continue;
 
     MEDOP::FieldHandler * fieldHandler = MEDOPFactoryClient::getDataManager()->getFieldHandler(fieldId);
+    if (! fieldHandler) {
+      QMessageBox::warning(_salomeModule->getApp()->desktop(),
+         tr("Operation not allowed"),
+         tr("No field is defined"));
+      return;
+    }
 
     DatasourceEvent * event = new DatasourceEvent();
     event->eventtype = DatasourceEvent::EVENT_VIEW_OBJECT;
-- 
2.39.2