v1.13.0-beta.2 - Uncaught Error: Assertion Failed: Expected component:chosen-select to resolve to an Ember.Component but instead it was (subclass of Ember.Select).

[ChrisHonniball]

I'm getting:

Uncaught Error: Assertion Failed: Expected component:chosen-select to resolve to an Ember.Component but instead it was (subclass of Ember.Select).

I had the same error when extending the default Ember.View which was not a big deal because I just made it a Ember.Component and updated a few lines of code but what about if I want to extend Ember.Select or other built in components (i.e., Ember.TextArea). What is the right technique after 1.13.0? Thanks for the help!

[rwjblue]

This assertion has been changed to a deprecation, and will be updated in 1.13.0-beta.3 soonish.

You can use the latest from the beta channel for now.

[ChrisHonniball]

Since it's a deprecation is there a new method for extending existing components?

[rwjblue]

Extending from something that is an Ember.Component is totally fine, and doesn't have an issue. If you are extending from Ember.Select though, it is an Ember.View (not a component at all) which is what triggers the deprecation.

[ChrisHonniball]

I see.

If I wanted to extend these controls am I still able to? I could just wrap them inside a component and do my necessary work on the wrapped elements if this isn't going to be something I have access to.

[rwjblue]

The change was made in #11261 and tweaked in #11300. All you should need to do is:

var CustomSelect = Ember.Select.extend();

CustomSelect.reopenClass({
  isComponentFactory: true
});

export default CustomSelect;

To get rid of the deprecation.

[ChrisHonniball]

Good to go! As always, I seriously appreciate it! 🍻