[*] Serializer - FIx serialization if id is 0

Author: Vincent Molinié

lib/serializer-utils.js

@@ -3,7 +3,6 @@ var isPlainObject = require('lodash/isPlainObject');
 var isFunction = require('lodash/isFunction');
 var _find = require('lodash/find');
 var _merge = require('lodash/merge');
-var _defaultsDeep = require('lodash/defaultsDeep');
 var _identity = require('lodash/identity');
 var _transform = require('lodash/transform');
 var _mapValues = require('lodash/mapValues');
@@ -12,7 +11,7 @@ var _pick = require('lodash/pick');
 var _pickBy = require('lodash/pickBy');
 var _keys = require('lodash/keys');
 var _each = require('lodash/each');
-var _isUndefined = require('lodash/isUndefined');
+var _isNil = require('lodash/isNil');
 var Inflector = require('./inflector');
 
 module.exports = function (collectionName, record, payload, opts) {
@@ -278,7 +277,7 @@ module.exports = function (collectionName, record, payload, opts) {
 
     // Top-level data.
     var data = { type: getType(collectionName, record) };
-    if (record[getId()]) { data.id = String(record[getId()]); }
+    if (!_isNil(record[getId()])) { data.id = String(record[getId()]); }
 
     // Data links.
     if (opts.dataLinks) {

test/serializer.js

@@ -72,6 +72,21 @@ describe('Options', function () {
       expect(json.data.id).to.equal('123');
       done(null, json);
     });
+
+    it('should be serialized when it\'s 0', function (done) {
+      var dataSet = {
+        id: 0,
+        firstName: 'Sandro',
+        lastName: 'Munda'
+      };
+
+      var json = new JSONAPISerializer('user', {
+        attributes: ['firstName', 'lastName'],
+      }).serialize(dataSet);
+
+      expect(json.data.id).equal('0');
+      done(null, json);
+    });
   });
 
   describe('pluralizeType', function () {
@@ -342,7 +357,7 @@ describe('Options', function () {
 
       var json = new JSONAPISerializer('user', {
         attributes: ['firstName', 'lastName'],
-        dataMeta: function (record) { return { copyright: record.firstName + ' ' + record.lastName }; } 
+        dataMeta: function (record) { return { copyright: record.firstName + ' ' + record.lastName }; }
       }).serialize(dataSet);
 
       expect(json.data[0].meta.copyright).equal("Sandro Munda");