Ember-Data: How to use `DS.Adapter.findHasMany`

Question

UPDATE

Note that this question applies to Ember Data pre-1.0 beta, the mechanism for loading relationships via URL has changed significantly post-1.0 beta!

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Answer 1

Instead of an array of ids, the payload needs to contain "something else" than an array.

In the case of the RESTAdapter, the returned JSON is like that:

{blog: {id: 1, comments: [1, 2, 3]}

If you want to handle manually/differently the association, you can return a JSON like that instead:

{blog: {id: 1, comments: "/posts/1/comments"}

It's up to your adapter then to fetch the data from the specified URL.

See the associated test: https://github.com/emberjs/data/blob/master/packages/ember-data/tests/integration/has_many_test.js#L112