my local I have 

```
this.resource('world', { path: 'world/:world_name' }, function() {        
  this.resource('room', function() {                                               
    this.route('new', { path: 'new' });                                   
    this.route('edit', { path: '/:room_id' });                            
    this.resource('exit', { path: '/:room_id/exit/' }, function() { 
      this.route('new', { path: '/:exit_id/new' }); 
      this.route('edit', { path: '/:exit_id' });   
    });           
  });         
});
```

I'll see if I can push what I have currently, I don't remember the state of it, but let me review and then I will push it.