83 lines
2.3 KiB
JavaScript
83 lines
2.3 KiB
JavaScript
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import DS from 'ember-data';
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import { assert, debug } from '@ember/debug';
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import { typeOf } from '@ember/utils';
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import { isArray } from '@ember/array';
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const { belongsTo } = DS;
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/*
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*
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* attachCapabilities
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*
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* @param modelClass = An Ember Data model class
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* @param capabilities - an Object whose keys will added to the model class as related 'capabilities' models
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* and whose values should be functions that return the id of the related capabilites model
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*
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* definition of capabilities be done shorthand with the apiPath tagged template funtion
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*
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*
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* @usage
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*
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* let Model = DS.Model.extend({
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* backend: attr(),
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* scope: attr(),
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* });
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*
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* export default attachCapabilities(Model, {
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* updatePath: apiPath`${'backend'}/scope/${'scope'}/role/${'id'}`,
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* });
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*
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*/
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export default function attachCapabilities(modelClass, capabilities) {
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let capabilityKeys = Object.keys(capabilities);
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let newRelationships = capabilityKeys.reduce((ret, key) => {
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ret[key] = belongsTo('capabilities');
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return ret;
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}, {});
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debug(`adding new relationships: ${capabilityKeys.join(', ')} to ${modelClass.toString()}`);
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modelClass.reopen(newRelationships);
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modelClass.reopenClass({
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// relatedCapabilities is called in the application serializer's
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// normalizeResponse hook to add the capabilities relationships to the
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// JSON-API document used by Ember Data
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relatedCapabilities(jsonAPIDoc) {
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let { data, included } = jsonAPIDoc;
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if (!data) {
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data = jsonAPIDoc;
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}
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if (isArray(data)) {
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let newData = data.map(this.relatedCapabilities);
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return {
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data: newData,
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included,
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};
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}
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let context = {
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id: data.id,
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...data.attributes,
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};
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for (let newCapability of capabilityKeys) {
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let templateFn = capabilities[newCapability];
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let type = typeOf(templateFn);
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assert(`expected value of ${newCapability} to be a function but found ${type}.`, type === 'function');
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data.relationships[newCapability] = {
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data: {
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type: 'capabilities',
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id: templateFn(context),
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},
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};
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}
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if (included) {
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return {
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data,
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included,
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};
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} else {
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return data;
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}
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},
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});
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return modelClass;
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}
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