Gordon Cassie

I think we are seeing an issue related to this. It's difficult to recreate because of the asynchrony. Here's the exception we get: ``` Error: Assertion Failed: Cannot call get...

I am using embedded records and to support the writable pk field I use a custom field. Edit: not sure if I have ever tried this with a hasMany relationship...

@dustinfarris that's correct. This approach is documented in the ED api docs as well so support should continue for it. http://emberjs.com/api/data/classes/DS.EmbeddedRecordsMixin.html

Two serializers could work and your code example is simpler to document for sure. Personally I like that the custom field consolidates all the logic in `serializers.py`. If my custom...

@dustinfarris No blog post and my bandwidth is limited right now. I threw it into a gist you can link to: https://gist.github.com/g-cassie/8b4c62bf2da7d791bc36 I don't think I have ever tested this...

I have variable heights working. I built a custom layout which tracks both the height of each object and the cumulative height of everything before it. It implements a method...

@humanchimp I am getting around this in my app by observing the tab key and then setting focus on the correct element using javascript. It's a bit hacky but it...

After looking at this further I think you could get even better performance by also ensuring that `ember-collection` never renders less cells than it did in its previous render cycle....

We have written a super hacky code to calculate height on elements by pre-rendering them in a div off the screen. AFIK this is the only way to support variable...

I haven't tried this myself. You could maybe get this result by making a fake field on `workoutPlan` called `exercise_ids`. Then you could try something like this ``` python class...