【发布时间】：2016-10-07 23:42:55
【问题描述】：
我正在构建一个 Web 应用程序，客户端使用 Ember，服务器端使用 Node。我使用的数据库是 Mongo。一切都在服务器端运行（我可以使用 Postman 来获取、发布、放置和删除用户。我想我几乎把所有东西都连接到了客户端，但是当我导航到时，Ember 向我抛出了最后一个错误/users 路由：
ember.debug.js:28535 Error while processing route: users Assertion Failed: You must include an 'id' for user in an object passed to 'push' Error: Assertion Failed: You must include an 'id' for user in an object passed to 'push'
任何想法为什么会发生这种情况/如何解决它？
以下是我的 server.js 文件的相关部分：
var User = require('./models/user');
// configure app to use bodyParser()
// this will let us get the data from a POST
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());
// Add CORS headers
app.use(function (request, response, next) {
response.header("Access-Control-Allow-Origin", "http://localhost:4200");
response.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
response.header("Access-Control-Allow-Resource", "*");
response.header("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE");
next();
});
var port = process.env.PORT || 8080; // set our port
// ROUTES FOR OUR API
var router = express.Router(); // get an instance of the express Router
// test route to make sure everything is working (accessed at GET http://localhost:8080/api)
router.get('/', function(request, response) {
response.json({ message: 'hooray! welcome to our api!' });
});
// more routes for our API will happen here
// REGISTER OUR ROUTES
// all of our routes will be prefixed with /api/v1
app.use('/api/v1/', router);
// START THE SERVER
app.listen(port);
console.log('Magic happens on port ' + port);
// more routes for our API will happen here
// on routes that end in /users
// ----------------------------------------------------
router.route('/users')
// create a user (accessed at POST http://localhost:8080/api/v1/users)
.post(function(request, response) {
var user = new User(); // create a new instance of the User model
user.name = request.body.name; // set the user's name (comes from the request)
user.email = request.body.email; // set the users's email property
user.password = request.body.password; //set the user's password property
// save the user and check for errors
user.save(function(error) {
if (error)
response.send(error);
response.json({ message: 'User created!' });
});
})
// get all the users (accessed at GET http://localhost:8080/api/v1/users)
.get(function (request, response) {
User.find(function (error, users) {
if (error) response.send(error);
response.json(users);
});
});
// on routes that end in /users/:user_id
// ----------------------------------------------------
router.route('/users/:user_id')
// get the user with that id (accessed at GET http://localhost:8080/api/users/:user_id)
.get(function (request, response) {
User.findById(request.params.user_id, function (error, user) {
if (error) response.send(error);
response.json(user);
});
})
// update the user with this id (accessed at PUT http://localhost:8080/api/users/:user_id)
.put(function (request, response) {
// use our user model to find the user we want
User.findById(request.params.user_id, function(error, user) {
if (error) response.send(error);
// update the user info
user.name = request.body.name;
user.email = request.body.email;
user.password = request.body.password;
// save the user
user.save(function(error) {
if (error) response.send(error);
response.json({ message: 'User updated!' });
});
});
})
// delete the user with this id (accessed at DELETE http://localhost:8080/api/users/:user_id)
.delete(function (request, response) {
User.remove({
_id: request.params.user_id
}, function(error, user) {
if (error) res.send(err);
response.json({ message: 'Successfully deleted' });
});
});
这是我的应用程序适配器（在 Ember 端）：
import DS from 'ember-data';
export default DS.RESTAdapter.extend({
host: 'http://localhost:8080',
namespace: 'api/v1'
});
这是我的序列化程序（在 Ember 端）：
import JSONAPISerializer from 'ember-data/serializers/json-api';
import DS from 'ember-data';
export default JSONAPISerializer.extend({
primaryKey: '_id'
});
export default DS.JSONSerializer;
这是我的模型（在 Ember 端）：
import Model from 'ember-data/model';
import attr from 'ember-data/attr';
export default Model.extend({
name: attr('string'),
email: attr('string'),
password: attr('string')
});
这是我的 users.js 路由（在 Ember 端）：
import Ember from 'ember';
export default Ember.Route.extend({
model() {
return this.store.findAll('user');
},
actions: {
createUser(newName, newEmail, newPassword) {
this.store.createRecord('user', {
name: newName,
email: newEmail,
password: newPassword
}).save();
},
updateUser(user) {
user.save();
},
deleteUser(user) {
user.destroyRecord();
}
}
});
【问题讨论】：
-
在使用 JSONAPISerializer 时是否有意使用 DS.RESTAdapter 而不是 DS.JSONAPIAdapter ？
-
另外，我不明白导出默认 DS.JSONSerializer
标签： javascript node.js mongodb ember.js ember-data