--- a/src/main/java/de/intevation/lada/factory/ProbeFactory.java	Fri Jul 10 12:56:00 2015 +0200
+++ b/src/main/java/de/intevation/lada/factory/ProbeFactory.java	Fri Jul 10 14:03:27 2015 +0200
@@ -287,11 +287,25 @@
         }
     }
 
-    public LProbe findUmwelt(LProbe probe) {
+    public LProbe findUmweltId(LProbe probe) {
         String[] mediaDesk = probe.getMediaDesk().split(" ");
         if (mediaDesk.length <= 1) {
-            return null;
+            return probe;
         }
+        probe.setUmwId(findUmwelt(mediaDesk));
+        return probe;
+    }
+
+    public Messprogramm findUmweltId(Messprogramm messprogramm) {
+        String[] mediaDesk = messprogramm.getMediaDesk().split(" ");
+        if (mediaDesk.length <= 1) {
+            return messprogramm;
+        }
+        messprogramm.setUmwId(findUmwelt(mediaDesk));
+        return messprogramm;
+    }
+
+    private String findUmwelt(String[] mediaDesk) {
         List<Integer> mediaIds = new ArrayList<Integer>();
         boolean zebs = false;
         Integer parent = null;
@@ -325,7 +339,7 @@
             @SuppressWarnings("unchecked")
             List<Deskriptoren> data = (List<Deskriptoren>)response.getData();
             if (data.isEmpty()) {
-                return probe;
+                return "";
             }
             hdParent = data.get(0).getId();
             mediaIds.add(data.get(0).getId());
@@ -333,16 +347,16 @@
                 ndParent = data.get(0).getId();
             }
         }
-        return getUmwelt(probe, mediaIds, zebs);
+        return getUmwelt(mediaIds, zebs);
     }
 
-    private LProbe getUmwelt(LProbe probe, List<Integer> media, boolean isZebs) {
+    private String getUmwelt(List<Integer> media, boolean isZebs) {
         QueryBuilder<DeskriptorUmwelt> builder =
             new QueryBuilder<DeskriptorUmwelt>(
                 repository.entityManager("stamm"), DeskriptorUmwelt.class);
 
         if (media.size() == 0) {
-            return probe;
+            return "";
         }
 
         int size = 1;
@@ -360,13 +374,12 @@
         @SuppressWarnings("unchecked")
         List<DeskriptorUmwelt> data = (List<DeskriptorUmwelt>)response.getData();
         if (data.isEmpty()) {
-            return probe;
+            return "";
         }
 
         boolean unique = isUnique(data);
         if (unique) {
-            probe.setUmwId(data.get(0).getUmwId());
-            return probe;
+            return data.get(0).getUmwId();
         }
         else {
             int found = -1;
@@ -415,11 +428,10 @@
                     }
                 }
                 if (found >= 0) {
-                    probe.setUmwId(data.get(found).getUmwId());
-                    return probe;
+                    return data.get(found).getUmwId();
                 }
             }
-            return probe;
+            return "";
         }
     }
 

--- a/src/main/java/de/intevation/lada/rest/MessprogrammService.java	Fri Jul 10 12:56:00 2015 +0200
+++ b/src/main/java/de/intevation/lada/rest/MessprogrammService.java	Fri Jul 10 14:03:27 2015 +0200
@@ -35,6 +35,7 @@
 import javax.ws.rs.core.MultivaluedMap;
 import javax.ws.rs.core.UriInfo;
 
+import de.intevation.lada.factory.ProbeFactory;
 import de.intevation.lada.model.land.Messprogramm;
 import de.intevation.lada.query.QueryTools;
 import de.intevation.lada.util.annotation.AuthorizationConfig;
@@ -88,6 +89,9 @@
     @AuthorizationConfig(type=AuthorizationType.OPEN_ID)
     private Authorization authorization;
 
+    @Inject
+    private ProbeFactory factory;
+
     /**
      * Get all Messprogramm objects.
      * <p>
@@ -221,6 +225,9 @@
             return new Response(false, 699, null);
         }
 
+        if (messprogramm.getUmwId() == null || messprogramm.getUmwId().length() == 0) {
+            messprogramm = factory.findUmweltId(messprogramm);
+        }
         /* Persist the new messprogramm object*/
         Response response = defaultRepo.create(messprogramm, "land");
         Messprogramm ret = (Messprogramm)response.getData();
@@ -261,6 +268,7 @@
             return new Response(false, 699, null);
         }
         messprogramm.setLetzteAenderung(new Timestamp(new Date().getTime()));
+        messprogramm = factory.findUmweltId(messprogramm);
         Response response = defaultRepo.update(messprogramm, "land");
         Response updated = defaultRepo.getById(
             Messprogramm.class,

--- a/src/main/java/de/intevation/lada/rest/ProbeService.java	Fri Jul 10 12:56:00 2015 +0200
+++ b/src/main/java/de/intevation/lada/rest/ProbeService.java	Fri Jul 10 14:03:27 2015 +0200
@@ -328,7 +328,7 @@
             return response;
         }
         if (probe.getUmwId() == null || probe.getUmwId().equals("")) {
-            probe = factory.findUmwelt(probe);
+            probe = factory.findUmweltId(probe);
         }
         /* Persist the new probe object*/
         Response newProbe = defaultRepo.create(probe, "land");
@@ -443,6 +443,7 @@
             response.setWarnings(violation.getWarnings());
             return response;
         }
+        factory.findUmweltId(probe);
         probe.setLetzteAenderung(new Timestamp(new Date().getTime()));
         Response response = defaultRepo.update(probe, "land");
         Response updated = defaultRepo.getById(