AngularJS: ui-router: how to get state parameter from child state? -

the question sounds bit stupid. let me explane i'm going achieve.

my simplified code:

$stateprovider   .state('course', {     url: '/courses/:courseid',     controller: 'coursecontroller'   }); $stateprovider   .state('course.topic', {     url: '/topics/:topicid',     controller: 'topiccontroller'   });  

without topicid it's not possible show content, know on course level if topic not set - should set first topic course.

how ui-router?

basically need param child state.

what about

$stateprovider   .state('course', {     abstract: true,     url: '/courses/:courseid',     controller: 'coursecontroller'   })   .state('course.topic', {     url: '/topics/:topicid',     controller: 'topiccontroller'   })   .state('course.firsttopic', {     url: '',     controller: 'topiccontroller'   });