working 'refresh buckets' action

qbolt/mainwindow.cpp

@@ -19,6 +19,7 @@ MainWindow::MainWindow(QWidget *parent) :
     databaseContext->addAction(ui->actionDisconnect);
 
     bucketContext = new QMenu();
+    bucketContext->addAction(ui->actionRefresh_buckets);
     bucketContext->addAction(ui->actionDelete_bucket);
 }
 
@@ -156,7 +157,7 @@ void MainWindow::on_bucketTree_customContextMenuRequested(const QPoint &pos)
 
 void MainWindow::on_actionRefresh_buckets_triggered()
 {
-
+    refreshBucketTree(lastContextSelection);
 }
 
 void MainWindow::on_bucketTree_currentItemChanged(QTreeWidgetItem *current, QTreeWidgetItem *previous)