Emberjs Fragment Array : access array properties from controller

I am using Emberjs Model Fragments and one of my model contain a fragmentArray.

When I get my model from the store and try to display the array informations with the handlebar helper it is working perfectly.

But if I want to iterate through this array from the controller, I am not able to get his basics properties.

I tried several things as Array.forEach, Array.objectAt but none of them succeed ...

So my question is : how to reproduce the iteration of handlebars on my controller to get my array data on the controller ?

On the controller I am able to get some basics data as string or other fragments using model.get('place').get('name'). So my model is loaded correctly and accessible.

It is only the array who bother me.