Ember Data: Pushing the data to the store will not replace the changedAttributes of the record?

Question

I am using Ember Data and I have a model say my-model. I am having a realtime notification server to update my application if there is any change for a record. When I am editing an attribute of my-model from UI, the model has some changedAttributes and when the real time notification comes, I am fetching the record from the server and pushing it to the store using store.push(store.normalize('my-model', data)).

Now, In the store the model still has my changedAttributes and it is not replaced. So I believe, the Ember Store will not replace the entire record and will replace only the clean attributes of the record when I do a store.push. I just want to confirm the behaviour. Can someone confirm if my understanding about this is right?

Answer 1

For something like this I think your best bet is to add a test to ember data itself to cover the desired behavior. This would be much more reliable than anything you might hear on Stackoverflow.

Answer 2

I've written a small Ember Twiddle to test that behavior: https://ember-twiddle.com/a8eb87a1c7e5019214320d81af05aca5?openFiles=templates.application.hbs%2C As it shows ember-data does not reset dirty attributes if the record is pushed again into the store - at least not for the tested version 3.4.2, which is a little bit outdated.

I wasn't able to find any tests in ember-data repository that covers your use case but I'm also not that familiar with Ember Data's source code. So you might want to open an issue there or ask on Ember Community Discord or Ember Discussion Forum if this is expected behavior.

To be honest I guess there should be a straight-forward solution to your problem as realtime notification (e.g. through WebSocket) is a common use case.