serialization - Passing async 'hasMany' relation to a component -

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i have ember model 'hasmany' relation don't want embed, , need pass asynchronously component gets records relation. when call component emblem file (=user-answer useranswers=useranswers id=smth.id), error "no method 'get' undefined". here code:

app/models/quiz_progress.coffee:

`import ds "ember-data";` `import progressmixin "../mixins/progress_mixin"` quizprogress = ds.model.extend progressmixin,   useranswers:            ds.hasmany 'user_answer', async: true `export default quizprogress;`

app/components/user-answer.coffee:

`import ember "ember";`  useranswercomponent = ember.component.extend   tagname: 'div'   classnames: ['ui', 'list']    useranswer: (->     id = @get('id')     answers = @get('useranswers')     answers.findby('questionid', id).get('answers')   ).property('id', 'useranswers')  `export default useranswercomponent;`

and works when useranswers serialized embedded. there no way rid of embedding? want pass ids


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