=== added file 'dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/configuration/ConfigurationDeletionHandler.java'
--- dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/configuration/ConfigurationDeletionHandler.java	1970-01-01 00:00:00 +0000
+++ dhis-2/dhis-services/dhis-service-core/src/main/java/org/hisp/dhis/configuration/ConfigurationDeletionHandler.java	2012-01-03 06:08:25 +0000
@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2004-2010, University of Oslo
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright notice, this
+ *   list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ * * Neither the name of the HISP project nor the names of its contributors may
+ *   be used to endorse or promote products derived from this software without
+ *   specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.hisp.dhis.configuration;
+
+import org.hisp.dhis.system.deletion.DeletionHandler;
+import org.hisp.dhis.user.UserGroup;
+import org.springframework.jdbc.core.JdbcTemplate;
+
+/**
+ * @author Chau Thu Tran
+ * 
+ * @version $Id: ConfigurationDeletionHandler.java Jan 3, 2012 11:52:32 AM $
+ */
+public class ConfigurationDeletionHandler
+    extends DeletionHandler
+{
+    // -------------------------------------------------------------------------
+    // Dependencies
+    // -------------------------------------------------------------------------
+
+    private JdbcTemplate jdbcTemplate;
+
+    public void setJdbcTemplate( JdbcTemplate jdbcTemplate )
+    {
+        this.jdbcTemplate = jdbcTemplate;
+    }
+
+    // -------------------------------------------------------------------------
+    // DeletionHandler implementation
+    // -------------------------------------------------------------------------
+
+    @Override
+    protected String getClassName()
+    {
+        return Configuration.class.getSimpleName();
+    }
+
+    @Override
+    public String allowDeleteUserGroup( UserGroup userGroup )
+    {
+        String sql = "SELECT COUNT(*) FROM configuration where feedbackrecipientsid=" + userGroup.getId()
+            + " OR completenessrecipientsid=" + userGroup.getId();
+
+        return jdbcTemplate.queryForInt( sql ) == 0 ? null : ERROR;
+    }
+}

=== modified file 'dhis-2/dhis-services/dhis-service-core/src/main/resources/META-INF/dhis/beans.xml'
--- dhis-2/dhis-services/dhis-service-core/src/main/resources/META-INF/dhis/beans.xml	2012-01-03 03:50:58 +0000
+++ dhis-2/dhis-services/dhis-service-core/src/main/resources/META-INF/dhis/beans.xml	2012-01-03 06:08:25 +0000
@@ -1239,6 +1239,10 @@
     <property name="dataElementService" ref="org.hisp.dhis.dataelement.DataElementService" />
   </bean>
 
+  <bean id="org.hisp.dhis.configuration.ConfigurationDeletionHandler" class="org.hisp.dhis.configuration.ConfigurationDeletionHandler">
+	<property name="jdbcTemplate" ref="jdbcTemplate" />
+  </bean>
+  
   <!-- DeletionManager -->
 
   <bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
@@ -1274,6 +1278,7 @@
           <ref local="org.hisp.dhis.user.UserSettingDeletionHandler" />
           <ref local="org.hisp.dhis.dataelement.DataElementCategoryDeletionHandler" />
           <ref local="org.hisp.dhis.dataelement.DataElementGroupSetDeletionHandler" />
+          <ref local="org.hisp.dhis.configuration.ConfigurationDeletionHandler" />
         </list>
       </list>
     </property>
@@ -1309,6 +1314,7 @@
         method="intercept" />
       <aop:before pointcut="execution( * org.hisp.dhis.user.UserService.delete*(..) )" method="intercept" />
       <aop:before pointcut="execution( * org.hisp.dhis.concept.ConceptService.delete*(..) )" method="intercept" />
+      <aop:before pointcut="execution( * org.hisp.dhis.user.UserGroupService.delete*(..) )" method="intercept" />
     </aop:aspect>
 
     <aop:aspect ref="statementInterceptor">

=== modified file 'dhis-2/dhis-support/dhis-support-system/src/main/java/org/hisp/dhis/system/deletion/DeletionHandler.java'
--- dhis-2/dhis-support/dhis-support-system/src/main/java/org/hisp/dhis/system/deletion/DeletionHandler.java	2011-12-26 10:07:59 +0000
+++ dhis-2/dhis-support/dhis-support-system/src/main/java/org/hisp/dhis/system/deletion/DeletionHandler.java	2012-01-03 06:08:25 +0000
@@ -82,6 +82,7 @@
 import org.hisp.dhis.user.User;
 import org.hisp.dhis.user.UserAuthorityGroup;
 import org.hisp.dhis.user.UserCredentials;
+import org.hisp.dhis.user.UserGroup;
 import org.hisp.dhis.user.UserSetting;
 import org.hisp.dhis.validation.ValidationCriteria;
 import org.hisp.dhis.validation.ValidationRule;
@@ -643,4 +644,13 @@
     public void deleteCaseAggregationCondition( CaseAggregationCondition caseAggregationCondition )
     {
     }
+
+    public String allowDeleteUserGroup ( UserGroup userGroup )
+    {
+        return null;
+    }
+
+    public void deleteUserGroup( UserGroup userGroup )
+    {
+    }
 }

=== modified file 'dhis-2/dhis-web/dhis-web-maintenance/dhis-web-maintenance-user/src/main/resources/org/hisp/dhis/user/i18n_module.properties'
--- dhis-2/dhis-web/dhis-web-maintenance/dhis-web-maintenance-user/src/main/resources/org/hisp/dhis/user/i18n_module.properties	2011-12-25 16:03:13 +0000
+++ dhis-2/dhis-web/dhis-web-maintenance/dhis-web-maintenance-user/src/main/resources/org/hisp/dhis/user/i18n_module.properties	2012-01-03 06:08:25 +0000
@@ -257,4 +257,5 @@
 inactive_for=Inactive for
 month=month
 months=months
-select=Select
\ No newline at end of file
+select=Select
+object_not_deleted_associated_by_objects=Object not deleted because it is associated by objects of type
\ No newline at end of file

=== modified file 'dhis-2/dhis-web/dhis-web-maintenance/dhis-web-maintenance-user/src/main/resources/struts.xml'
--- dhis-2/dhis-web/dhis-web-maintenance/dhis-web-maintenance-user/src/main/resources/struts.xml	2011-09-28 07:11:18 +0000
+++ dhis-2/dhis-web/dhis-web-maintenance/dhis-web-maintenance-user/src/main/resources/struts.xml	2012-01-03 06:08:25 +0000
@@ -211,6 +211,7 @@
 
     <action name="removeUserGroup" class="org.hisp.dhis.user.action.RemoveUserGroupAction">
       <result name="success" type="velocity">/dhis-web-commons/ajax/jsonResponseSuccess.vm</result>
+      <result name="error" type="velocity">/dhis-web-commons/ajax/jsonResponseError.vm</result>
       <param name="requiredAuthorities">F_USER_GRUP_DELETE</param>
     </action>