Ember.js ember-infinity plugin, how to work with multiple models?

here my beginig issue - http://ift.tt/2gF2Dbp

but i have some more trouble with it… My comments are in the child component. So i call it template like this:

And inside of it, i use:

if i change it to: Than i see request, but i get error "ember.debug.js:31321 TypeError: Cannot read property 'pushObjects' of undefined" It's because there no model.comments.comments.

How to solve this?