Ember CLI Data Chaining data Models

I have a model made by 3 other nested models in Ember and I want to use data from one of them for a parameter for another one.

I have got a model to set the configuration of my App (hotTopicConfig) The thing is that I want to use data from hotTopicConfig to use it as a parameter in hotTopics Model

    return new Ember.RSVP.hash({
                hotTopicConfig : self.store.findQuery('hot-topic-config', { 
                    touchpointId :params.touchpointId,
                }).then(function(results){
                    self.set('periodType',results.get('periodType'))
                    return results.get('firstObject');
                }), 

                hotTopicSortByType : self.store.find('hot-topic-sort-by-type'),

                hotTopics: self.store.findQuery('hot-topic', { 
                            touchpointId : params.touchpointId,
                            periodType : HERE I WANT TO USE DATA FROM hotTopicConfig 
                })
                .then(function(results){
                    return results.get('firstObject');
                })

I have used several solutions but none of them workt for me, like external and additional calls to AJAX call.

Is there any other way to do this?

Thanks.

Alberto