Choose tab based on existence of scheduled batches

config/Windows/newbatch.xml

             tabs.currentChanged.connect(function(index) {
                 pages.setCurrentIndex(index);
             });
-            tabs.setCurrentIndex(1);
             var batches = findChildObject(this, 'batches');
             var filter = findChildObject(this, 'filter');
             var filtervalue = findChildObject(this, 'filtervalue');
                 updateSchedule();
             });
             updateSchedule();
+            if(batches.rows() > 0) {
+                tabs.setCurrentIndex(0);
+            } else {
+                tabs.setCurrentIndex(1);
+            }
             batches.setHeaderData(0, TTR("batchWindow", "ID"));
             batches.setHeaderData(1, TTR("batchWindow", "Roasted Coffee"));
             batches.setHeaderData(2, TTR("batchWindow", "Green Weight"));

src/typica.w

                                    QScriptEngine *engine);
 QScriptValue SqlQueryView_setHeaderData(QScriptContext *context,
                                         QScriptEngine *engine);
+QScriptValue SqlQueryView_rows(QScriptContext *context,
+                               QScriptEngine *engine);
 
 @ The script constructor is passed to the host environment.
 
     value.setProperty("setHeaderData",
                       engine->newFunction(SqlQueryView_setHeaderData));
     value.setProperty("setQuery", engine->newFunction(SqlQueryView_setQuery));
+    value.setProperty("rows", engine->newFunction(SqlQueryView_rows));
 }
 
 @ The properties added are simplified wrappers around the class methods.
     return QScriptValue();
 }
 
+QScriptValue SqlQueryView_rows(QScriptContext *context, QScriptEngine *)
+{
+    SqlQueryView *self = getself<SqlQueryView *>(context);
+    return QScriptValue(self->model()->rowCount());
+}
+
 @** Reporting.
 
 \noindent \pn{} version 1.4 added a new type of menu which is designed to