Ember-inspector: Cannot inspect a model in detail

Created on 11 Oct 2016 · 9Comments · Source: emberjs/ember-inspector

Hello,

If I want to inspect a model (by clicking on an instance of a EmberData model) I have the following error:

Ember Inspector has errored.
This is likely a bug in the inspector itself.
You can report bugs at https://github.com/emberjs/ember-inspector.
Error message: Cannot read property 'toString' of undefined
Stack trace: TypeError: Cannot read property 'toString' of undefined
    at CoreObject.PrototypeMixin._emberMetalMixin.Mixin.create._Mixin$create.toString (http://localhost:4200/assets/vendor.js:53451:37)
    at Object.addListener (http://localhost:4200/assets/vendor.js:34685:88)
    at addObserver (http://localhost:4200/assets/vendor.js:38047:23)
    at Class.bindPropertyToDebugger (<anonymous>:3244:7)
    at <anonymous>:3259:20
    at Array.forEach (native)
    at <anonymous>:3253:26
    at Array.forEach (native)
    at Class.bindProperties (<anonymous>:3252:20)
    at Class.mixinsForObject (<anonymous>:3203:12)

I'm using
Ember 2.8
Ember-data 2.8.0
Ember Inspector 2.0.3

wontfix

Source

vanadar

Most helpful comment

Hello,

This error appear when we use these models:

// model/base.js
import Ember from 'ember';
import Model from 'ember-data/model';

export default Model.extend({
    modelName: Ember.computed.alias('constructor.modelName')
});

// model/model1.js
import Ember from 'ember';
import Base from './base';

export default Base.extend({
    ...
});

If we inspect model1 with Ember Inspector, we have the same error. But if we comment modelName CP in Base model, no error...

We use this CP to get the modelName of a polymorphic relationship (see How to get the modelname of a polymorphic relationship belongsto on discuss.emberjs.com) so we can use {{model.ourRelation.modelName}} instead of {{model.ourRelation.content.constructor.modelName}} in templates.

mpirio on 6 Nov 2016

👍2

All 9 comments

Which Ember Data version?

teddyzeenny on 11 Oct 2016

the version of Ember-Data is also 2.8.0

vanadar on 11 Oct 2016

I'm unable to reproduce this. Can you reproduce it in jsbin, an online app, or a public repo?

teddyzeenny on 12 Oct 2016

Hello,

This error appear when we use these models:

// model/base.js
import Ember from 'ember';
import Model from 'ember-data/model';

export default Model.extend({
    modelName: Ember.computed.alias('constructor.modelName')
});

// model/model1.js
import Ember from 'ember';
import Base from './base';

export default Base.extend({
    ...
});

If we inspect model1 with Ember Inspector, we have the same error. But if we comment modelName CP in Base model, no error...