=== modified file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/datavalue/DataValueService.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/datavalue/DataValueService.java	2015-09-21 12:17:42 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/datavalue/DataValueService.java	2015-12-04 16:57:18 +0000
@@ -84,6 +84,13 @@
      * @param dataValue the DataValue to delete.
      */
     void deleteDataValue( DataValue dataValue );
+    
+    /**
+     * Deletes all data values for the given organisation unit.
+     * 
+     * @param organisationUnit the organisation unit.
+     */
+    void deleteDataValues( OrganisationUnit organisationUnit );
 
     /**
      * Returns a DataValue.

=== modified file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/datavalue/DataValueStore.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/datavalue/DataValueStore.java	2015-09-21 12:17:42 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/datavalue/DataValueStore.java	2015-12-04 16:57:18 +0000
@@ -79,6 +79,13 @@
     void deleteDataValue( DataValue dataValue );
     
     /**
+     * Deletes all data values for the given organisation unit.
+     * 
+     * @param organisationUnit the organisation unit.
+     */
+    void deleteDataValues( OrganisationUnit organisationUnit );
+    
+    /**
      * Returns a DataValue.
      * 
      * @param dataElement the DataElement of the DataValue.

=== modified file 'dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/datavalue/DefaultDataValueService.java'
--- dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/datavalue/DefaultDataValueService.java	2015-12-01 04:59:42 +0000
+++ dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/datavalue/DefaultDataValueService.java	2015-12-04 16:57:18 +0000
@@ -189,7 +189,14 @@
 
         dataValueStore.deleteDataValue( dataValue );
     }
-
+    
+    @Override
+    @Transactional
+    public void deleteDataValues( OrganisationUnit organisationUnit )
+    {
+        dataValueStore.deleteDataValues( organisationUnit );
+    }
+    
     @Override
     public DataValue getDataValue( DataElement dataElement, Period period, OrganisationUnit source, DataElementCategoryOptionCombo categoryOptionCombo )
     {

=== modified file 'dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/datavalue/hibernate/HibernateDataValueStore.java'
--- dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/datavalue/hibernate/HibernateDataValueStore.java	2015-09-21 12:17:42 +0000
+++ dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/datavalue/hibernate/HibernateDataValueStore.java	2015-12-04 16:57:18 +0000
@@ -133,6 +133,17 @@
     }
 
     @Override
+    public void deleteDataValues( OrganisationUnit organisationUnit )
+    {
+        String hql = "delete from DataValue d where d.source = :source";
+        
+        Query query = sessionFactory.getCurrentSession().createQuery( hql );
+        query.setEntity( "source", organisationUnit );
+        
+        query.executeUpdate();
+    }
+    
+    @Override
     public DataValue getDataValue( DataElement dataElement, Period period, OrganisationUnit source,
         DataElementCategoryOptionCombo categoryOptionCombo, DataElementCategoryOptionCombo attributeOptionCombo )
     {