DS.BuildURLMixin#urlForFindBelongsTo()

Builds a URL for fetching a async belongsTo relationship when a url is not provided by the server.

Example:

import DS from 'ember-data';

export default DS.JSONAPIAdapter.extend({
  urlForFindBelongsTo(id, modelName, snapshot) {
    let baseUrl = this.buildURL(id, modelName);
    return `${baseUrl}/relationships`;
  }
});