ember-data-updating-json-api-relationships

This addon adds support to Ember Data to update relationships independently. See Updating Relationships in the JSON:API spec for more details. This library works for updating to-one and to-many relationships, as described in the JSON:API spec.

Installation

ember install ember-data-updating-json-api-relationships

Getting Started

First, extend the adapter:

// app/adapters/application.js
import DS from 'ember-data';
import JSONAPIAdapter from 'ember-data-updating-json-api-relationships/adapters/adapter';

export default JSONAPIAdapter.extend({
});

Second, extend the serializer:

// app/serializers/application.js
import DS from 'ember-data';
import JSONAPISerializer from 'ember-data-updating-json-api-relationships/serializers/serializer';

export default JSONAPISerializer.extend({
});

Third, add the model mixin to the model with the relationship that you want to update independently:

// app/models/article.js
import DS from 'ember-data';
import ModelMixin from 'ember-data-updating-json-api-relationships/mixins/model';

let { Model, attr, hasMany, belongsTo } = DS;

export default Model.extend(ModelMixin, {
  title: attr('string'),
  tags: hasMany(),
  author: belongsTo()
});

Lastly, call updateRelationship(relationship) on your model:

article.get('tags').pushObject(tag1);
article.get('tags').pushObject(tag2);

// PATCH /articles/:id/relationships/tags
article.updateRelationship('tags');

article.set('author', author);

// PATCH /articles/:id/relationships/author
article.updateRelationship('author');

Customizations

Customizing Relationship URLs

This addon will set relationship URLs to what is recommended in the spec, so something like /articles/:id/relationships/tags for a to-many relationship and /articles/:id/relationships/author for a to-one relationship. If you need to override this, use the urlForUpdateRelationship() hook:

// app/adapters/article.js
export default ApplicationAdapter.extend({
  urlForUpdateRelationship(id, modelName, snapshot, relationshipToUpdate) {
    let { host, namespace } = this;
    if (relationshipToUpdate === 'tags') {
      return `${host}/${namespace}/articles/${id}/categories`;
    }
  }
})