angularjs - prevent user to access if has not logged in (only login/register views) -

i creating app ionic. need when user not logged, , him go state/page not log/register view, app move login or register.

but code generates loop.

$rootscope.$on('$statechangestart', function(event, tostate, fromstate){     if(!userfactory.isloggedin() && (tostate.name !== 'login' || tostate.name !== 'register') ){         event.preventdefault();         $state.go('login');     }else if(tostate.name == 'login' || tostate.name == 'register'){         $state.go(tostate.name);     } }); 

** update **

i removed else if statement, problem same.

$rootscope.$on('$statechangestart', function(event, tostate, fromstate){     if(!userfactory.isloggedin() && tostate.name !== 'login' ){         event.preventdefault();         $state.go('login');     } }); 

any solution?

thanks!

pd: sorry poor english.