Ember data mutable array in hasMany relationship

Question

So I have a model in my ember application that looks like this:

import DS from 'ember-data';

export default DS.Model.extend({
    title: DS.attr("string"),
    highscore: DS.attr("number"),
    type: DS.attr("string"),
    choices: DS.hasMany("word-part"),
    usedChoices: DS.hasMany("word-part"),
    controller: DS.attr("string", {defaultValue: "activity"})
});

And I need to be able to pop items out of the choices array, but it seems it's not a mutable array. I've been looking over the docs and I can't find a way to have choices resolve as a MutableArray . Is there something I'm missing here? It appears the choices property of resolved models is readonly, so I can't even overwrite the entire array.

Any help would be greatly appreciated.

Answer 1

If you have your model and choice and you know which choice, you would do this:

model.choices.removeObject(choice);

hasMany implements everything on Ember.MutableArray