Property doesn't have access to synced dependencies.

[QuantumKing]

I have some code (Ember 2.0.0):

  assignedBundles: Ember.computed.readOnly('controllers.patient.assignedBundles'),

  allAssessments: Ember.computed.readOnly('controllers.application.allAssessments'),

  otherAssessments: function() {
    var bundle_assessments = this.get('assignedBundles').mapBy('assessment');
    return this.get('allAssessments').reject(function(assessment) {
      return bundle_assessments.contains(assessment.get('id'));
    }, this);
  }.property('allAssessments.[]', 'assignedBundles.[]'),

But I get the error Cannot read property 'mapBy' of undefined. I check afterwards in the Ember inspector and assignedBundles is correctly an array, so something is up where otherAssessments seems to be computed before assignedBundles. Has anyone else seen this?

[stefanpenner]

are prototype extensions enabled or disabled?

[QuantumKing]

@stefanpenner Where would I find that?

[QuantumKing]

I think this has to do with needs not working as it used to. Whenever I do needs: ['someController'], I get nothing in Ember.computed.readOnly('controllers.someController.someProperty')

[QuantumKing]

Ok, I found the commit from the changelog. It was needs #11770