Added verification if a leaf node (tst) is flagged as online.

connector-service/src/main/java/de/thm/arsnova/connector/dao/IliasConnectorDaoImpl.java

@@ -203,6 +203,27 @@ public class IliasConnectorDaoImpl implements UniRepDao {
 				}
 				);
 	}
+	
+	@Override
+	public boolean isTestOnline(final int refId) {
+		final JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);
+
+		return jdbcTemplate.queryForObject(
+				"SELECT online_status FROM tree AS t1 "
+						+ "JOIN tree AS t2 ON t2.lft BETWEEN t1.lft AND t1.rgt AND t1.tree = t2.tree "
+						+ "JOIN object_reference AS r ON r.ref_id=t2.child "
+						+ "JOIN object_data as d ON d.obj_id=r.obj_id "
+						+ "JOIN tst_tests as tests ON tests.obj_fi=r.obj_id "
+						+ "WHERE t1.child = ?",
+						new String[] {String.valueOf(refId)},
+						new RowMapper<Boolean>() {
+							@Override
+							public Boolean mapRow(final ResultSet resultSet, final int row) throws SQLException {
+								return resultSet.getBoolean("online_status");
+							}
+						}
+				);
+	}
 
 	@Override
 	public boolean isRandomQuestionSet(final int refId) {

connector-service/src/main/java/de/thm/arsnova/connector/dao/UniRepDao.java

@@ -38,6 +38,13 @@ public interface UniRepDao {
 	 * @return A map with reference id - meta data value pairs
 	 */
 	Map<String, String> getReferenceIdsWithMetaDataFlag(String metaDataTitle);
+	
+	/** Returns TRUE if referenced repository object is a test which is flagged as online
+	 *
+	 * @param refId The reference id of the test to be checked
+	 * @return TRUE if this object is a test which is flagged as online
+	 */
+	boolean isTestOnline(int refId);
 
 	/** Returns TRUE if referenced repository object is a test with random question selection
 	 *

connector-service/src/main/java/de/thm/arsnova/connector/services/UniRepServiceImpl.java

@@ -95,7 +95,7 @@ public class UniRepServiceImpl implements UniRepService {
 			}
 
 			if (node.getChildren() == null || node.getChildren().size() == 0) {
-				if (node.getQuestionCount() == 0) {
+				if (node.getQuestionCount() == 0 || !uniRepDao.isTestOnline(node.getId())) {
 					it.remove();
 					hasRemovedNodes = true;
 					continue;