How to store EmberJS input value in object or array on the controller

I have a few input fields being displayed programatically via the Ember each helper. These inputs are related to data being returned from my database, and I have a corresponding unique ID for each input that I could use if necessary.

My question is how can I store the value of these dynamically generated inputs on my controller so that I can access the user's input data? I was trying to do something like this:

However, trying to access an object or array in this manner causes a build error related to the the above syntax in specifying the value (object dot notation causes a build error too).

In short, I am trying to save the value of the input field as a property on an object or in an array instead of as a plain variable on the controller.

If this is not possible using the value attribute but you know how to accomplish this with actions or with something else, I'm more than open to your ideas.