Array attr type seems to be broken about ember-model HOT 4 CLOSED

A quick glance looks like the _dirtyAttributes get modified when the computed property is set. Pushing an object to an array does not actually replace the array, so your not calling set on the computed property.

So we probably need to add an arrayObserver to Array values. In order to set the dirtyAttributes when the array is modified.

A work around for now would be to replace the array on the model.

var keywords = this.get('model.keywords');
keywords.pushObject(keyword);
this.set('model.keywords', keywords.slice(0));

This has some performance concerns for large data sets, but it might be an acceptable workaround until this can be fixed.

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Thanks, @raytiley. This was driving @matthewdordal and I nutty yesterday.

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@ryanricard If you want dirty checking of arrays, they have to be modeled as hasMany relationships.

from ember-model.

For reference, this is a duplicate of #259

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