mirage/crate: Replace categories property with relationship

Author: Turbo87

mirage/factories/crate.js

@@ -23,7 +23,6 @@ export default Factory.extend({
   updated_at: '2017-02-24T12:34:56Z',
 
   badges: () => [],
-  categories: () => [],
   keywords: () => [],
   versions: () => [],
   _extra_downloads: () => [],

mirage/fixtures/crates.js

@@ -32,7 +32,7 @@ export default [
         },
       },
     ],
-    categories: [],
+    categoryIds: [],
     created_at: '2014-12-08T02:08:06Z',
     description: 'A high-level, Rust idiomatic wrapper around nanomsg.',
     documentation: 'https://github.com/thehydroimpulse/nanomsg.rs',

mirage/models/crate.js

@@ -1,3 +1,5 @@
-import { Model } from 'ember-cli-mirage';
+import { Model, hasMany } from 'ember-cli-mirage';
 
-export default Model.extend({});
+export default Model.extend({
+  categories: hasMany(),
+});

mirage/route-handlers/crates.js

@@ -38,15 +38,14 @@ export function register(server) {
     let crate = schema.crates.find(crateId);
     if (!crate) return notFound();
 
-    let categories = schema.categories.all().filter(category => (crate.categories || []).indexOf(category.id) !== -1);
     let keywords = schema.keywords.all().filter(keyword => (crate.keywords || []).indexOf(keyword.id) !== -1);
     let versions = schema.versions
       .all()
       .filter(version => (crate.versions || []).indexOf(parseInt(version.id, 10)) !== -1);
 
     return {
       ...this.serialize(crate),
-      ...this.serialize(categories),
+      ...this.serialize(crate.categories),
       ...this.serialize(keywords),
       ...this.serialize(versions),
     };

mirage/serializers/crate.js

@@ -30,4 +30,23 @@ export default BaseSerializer.extend({
       versions: `/api/v1/crates/${crate.id}/versions`,
     };
   },
+
+  getHashForResource() {
+    let [hash, addToIncludes] = BaseSerializer.prototype.getHashForResource.apply(this, arguments);
+
+    if (Array.isArray(hash)) {
+      for (let resource of hash) {
+        this._adjust(resource);
+      }
+    } else {
+      this._adjust(hash);
+    }
+
+    return [hash, addToIncludes];
+  },
+
+  _adjust(hash) {
+    hash.categories = hash.category_ids;
+    delete hash.category_ids;
+  },
 });

tests/mirage/crates-test.js

@@ -282,12 +282,13 @@ module('Mirage | Keywords', function(hooks) {
     test('includes related categories', async function(assert) {
       this.server.create('category', { category: 'no-std' });
       this.server.create('category', { category: 'cli' });
-      this.server.create('crate', { name: 'rand', categories: ['no-std'] });
+      this.server.create('crate', { name: 'rand', categoryIds: ['no-std'] });
 
       let response = await fetch('/api/v1/crates/rand');
       assert.equal(response.status, 200);
 
       let responsePayload = await response.json();
+      assert.deepEqual(responsePayload.crate.categories, ['no-std']);
       assert.deepEqual(responsePayload.categories, [
         {
           id: 'no-std',