chart.js

import Ember from 'ember';
import DS from 'ember-data';

import {
  validator, buildValidations
}
from 'ember-cp-validations';

const Validations = buildValidations({
  name: validator('presence', true)
});


export default DS.Model.extend(Validations, {
  visualizations: DS.hasMany('visualization', {polymorphic: true}),

  selectedVisualization: Ember.computed('visualizations', function() {
    return this.get('visualizations').filterBy('recommendation', false).filterBy('active', true).get('firstObject');
  })
});