Polymorphic fragmentArray and typeKey

[basz]

Hi

I used to be able to do this on a polymorphic model to get to the typekey given as argument in the model definition

const typeKey = this.contactModel.get('options.typeKey');

Currently (6.0.1) these event options is undefined. Did ember data remove that? I'm still using ember and ember-data 3.28.12

@fragmentArray('fragment/contact/contactcomponent', {
    polymorphic: true,
    typeKey: 'componentType',
    ...

[dwickern]

In model-fragments v5, FragmentArray exposed an options property containing the attribute metadata, although it was private API: https://github.com/adopted-ember-addons/ember-data-model-fragments/blob/7ea57179eff9063530ac4fd42097604540887f25/addon/array/fragment.js#L82

In model-fragments v6, you can get a fragment array's attribute metadata the same way you would do for any regular attr:

• ModelClass.attributes
• modelInstance.eachAttribute

So you could do something like:

modelInstance.constructor.attributes.get('fragmentArrayAttr').options