public function indexAction(Request $request)
{
$source = new Entity('OjsJournalBundle:ContactTypes');
$grid = $this->get('grid')->setSource($source);
$gridAction = $this->get('grid_action');
$actionColumn = new ActionsColumn("actions", 'actions');
$rowAction[] = $gridAction->showAction('ojs_admin_contact_type_show', 'id');
$rowAction[] = $gridAction->editAction('ojs_admin_contact_type_edit', 'id');
$rowAction[] = $gridAction->deleteAction('ojs_admin_contact_type_delete', 'id');
$actionColumn->setRowActions($rowAction);
$grid->addColumn($actionColumn);
$data = [];
$data['grid'] = $grid;
return $grid->getGridResponse('OjsAdminBundle:AdminContactType:index.html.twig', $data);
}