symfony - KnpMenuBundle: why using 'route' instead of 'uri' transforms the <a> element to <span>? -

i'm creating bundle knpmenubundle on symfony 2.3.x , doesn't mark current element, so, thought problem has using 'uri' instead of 'route' since i'm on symfony , all, thing is, when use route, element changes from

    <li><a href="engineerings">engineerings</a></li> 

to:

        <li><span>engineerings</span></li> 

the <a> element

public function mainmenu(factoryinterface $factory, array $options) {         $factory = new menufactory();         $menu = $factory->createitem('root');         $menu->setchildrenattributes(array('id' => 'tabs', 'class' => 'fl'));         $menu->addchild('cooperators', array('uri' => 'companies'));         $menu->addchild('customers', array('uri' => 'clients'));         $menu->addchild('engineerings', array('uri' => 'engineerings'));         $menu->addchild('lines', array('uri' => 'lines'));         $menu->addchild('priorities', array('uri' => 'priorities'));         $menu->addchild('projects', array('uri' => 'projects'));         $menu->addchild('statuses', array('uri' => 'statuses'));         $menu->addchild('sites', array('uri' => 'sites'));         $menu->addchild('reports', array('uri' => 'reports'));         $menu->addchild('roles', array('uri' => 'roles'));         $menu->addchild('users', array('uri' => 'users'));         return $menu;     } 

the <span> element

 public function mainmenu(factoryinterface $factory, array $options) {         $factory = new menufactory();         $menu = $factory->createitem('root');         $menu->setchildrenattributes(array('id' => 'tabs', 'class' => 'fl'));         $menu->addchild('cooperators', array('route' => 'companies'));         $menu->addchild('customers', array('route' => 'clients'));         $menu->addchild('engineerings', array('route' => 'engineerings'));         $menu->addchild('lines', array('route' => 'lines'));         $menu->addchild('priorities', array('route' => 'priorities'));         $menu->addchild('projects', array('route' => 'projects'));         $menu->addchild('statuses', array('route' => 'statuses'));         $menu->addchild('sites', array('route' => 'sites'));         $menu->addchild('reports', array('route' => 'reports'));         $menu->addchild('roles', array('route' => 'roles'));         $menu->addchild('users', array('route' => 'users'));         return $menu;     } 

now, why happen? also, how can set current item? can't make display 'current' class.

your problem line:

$factory = new menufactory(); 

you don't need it. remove it. create new menufactory it's default settings. experience wired behaviour myself when create own factory this.