18

我一直在四处寻找，但找不到任何也使用 socket.io 的 ember (1.0.0-rc.1) 和 ember-data(revision 11) 的最新示例。我试过这样的事情。

App.ApplicationRoute = Ember.Route.extend({
  setupController: function(controller, data) {
    var socket = io.connect(),
        self = this;
    socket.on('apartment/new', function(apartment) {
      var apt = App.Apartment.createRecord(apartment);
      self.controllerFor('apartments').pushObject(apt);
    });
  }
});

这实际上会创建一个新的模型类，它将对象推送到控制器，并创建一个新的 li 但值不会呈现。

<ul class="list-view">
{{#each apartment in controller}}
    <li>
      {{#linkTo 'apartment' apartment }}
        <span class="date">{{date apartment.date}}</span>
        {{apartment.title}}
      {{/linkTo}}
    </li>
{{/each}}
</ul>

这与运行循环有关吗？如何强制渲染值？或者有更好的方法吗？

4

2 回答 2

15

我在我的一些应用程序中使用了一个非常简单的解决方案。您可以对套接字进行通用回调并接受任何类型的数据

callback: function(message) {
  // this is better than just `eval`
  var type = Ember.get(Ember.lookup, message.type);
  store.load(type, message.data);
}

或者在这里它是专门为您的用例量身定制的

socket.on('apartment/new', function(apartment) {
  store.load(App.Apartment, apartment);
});

usingstore.load会将记录数据直接加载到身份映射中。还有loadMany用于加载多条记录。

于 2013-03-16T09:32:52.713 回答
1

Ember CLI、ember 套接字和咖啡脚本

我只使用 Ember 大约一个月，所以不能保证这是最好的方法，但我必须使用 Socket.io 和 Ember Data 建立一个 Ember CLI 项目。以下内容基于我的工作代码，尽管以下内容未经测试。我认为你需要完成 99% 的一切都在这里。祝您故障排除！

.jshintrc - 如果您在此处不包含 EmberSockets，Ember 服务将会对您大喊大叫

{
  "predef": {
  "document": true,
  "window": true,
  "nameofprojectENV": true,
  "EmberSockets": true
  },
  ...
}

Brocfile.js - 导入 Ember 套接字

var EmberApp = require('ember-cli/lib/broccoli/ember-app');

var app = new EmberApp();

// change this path to where ember-sockets.js is
app.import('vendor/ember-sockets/package/ember-sockets.js');

module.exports = app.toTree();

app.js - 记得用实际项目名称替换 nameofproject

import Ember from 'ember';
import Resolver from 'ember/resolver';
import loadInitializers from 'ember/load-initializers';

Ember.MODEL_FACTORY_INJECTIONS = true;

// every controller using ember sockets must be listed here in the controllers array
var Socket = EmberSockets.extend({
    host: 'example.local',
    port: 8080,
    controllers: [
        'example'
        // more controllers here
    ]
});

var App = Ember.Application.extend({
    modulePrefix: 'nameofproject',
    Resolver: Resolver,
    Socket: Socket
});

loadInitializers(App, 'nameofproject');

export default App;

router.coffee - 记得用实际项目名称替换 nameofproject

`import Ember from 'ember'`

Router = Ember.Router.extend
    location: nameofprojectENV.locationType

Router.map ->
    @route 'example'

`export default Router`

模型/example.coffee

`import DS from 'ember-data'`

Example = DS.Model.extend
    name: DS.attr('string')

`export default Example`

路线/example.coffee

`import Ember from 'ember'`

ExampleRoute = Ember.Route.extend
    # set model to be all example records
    model: ->
        @store.all('example')

    setupController: (controller, model) ->
        controller.set('model', model)

`export default ExampleRoute`

控制器/example.coffee

`import Ember from 'ember'`

ExampleController = Ember.Controller.extend

#### properties

examples: (->
    # @get('content') gets the model, which in this case, is example (set in route)
    @get('content')
).property('content') # watching the model like this might not be right?

#### methods
getExamples: ->
    @socket.emit 'pub',
        # whatever data you need to pass to the server
        data : {examples: true}
        # name of the event you want the data returned on
        event: "getExamples"

#### sockets
sockets:
    # returns examples from server
    getExamples: (data) ->
        # log the data for fun, also to see that you are getting data back
        console.log data
        # set controller to @, which is the same as this.
        controller = @

        # get your array of examples from JSON returned from server
        examples = data.examples

        examples.forEach (example) ->
            # controller instead of @, or it doesn't work
            controller.store.push 'example',
                # you need ids or this will not work
                id: example.id
                name: example.name

`export default ExampleController`

模板/example.coffee

{{#each example in examples}}
    {{example.id}} {{example.name}}
{{/each}}

<button {{action getExamples}}>Get Examples</button>

我建议使用Chrome Ember Inspector进行故障排除。您还可以查看您的数据模型和记录等。

于 2014-09-02T00:28:28.023 回答