simple routing in yii framework 1 -

i new yii framework.i have page controller , contact_us action url become site_url/page/contact_us want should site_url/contact_us. want know how set route , in file.

class pagecontroller extends sitecontroller         {            function actioncontact_us()             {                 //something ;              }         } 

i m using code :-

'urlmanager'=>array(             'urlformat'=>'path',             'showscriptname'=>false,             'appendparams' => false,             'casesensitive'=>false,              'rules'=>array(                 array(                     'class' => 'application.components.indexurlrule',                     'connectionid' => 'db',                 ),                 array(                         'contact_us' => 'site/page/contact_us',                           ),                 array(                         'class' => 'application.components.pageurlrule',                         'connectionid' => 'db',                 ),                                       '<_c:index|trade|page>'=>'<_c>/index',                 'page/<page_id:\d+>' => 'page/show'             ),         ), 

you need configure in url manager in config file -

 'urlmanager'=>array(         'urlformat'=>'path',         'showscriptname'=>false,         'rules'=>array(             'contact_us'=> 'site/page/contact_us',         )     ) 

after url -

www.example.com/contact_us