Question

在骨干网中，我创建了以下模型，集合和视图

var sensor= Backbone.Model.extend({})

var sensorCollection = Backbone.Collection.extend({ model: sensor })

var sensors= new sensorCollection;

var SensorView =Backbone.View.extend({})

var AppView =Backbone.View.extend({})

var App = new AppView

我还运行了这个PHP套接字：

var conn = new ab.Session('ws:localhost:8080', function() {
    conn.subscribe('temperature', function(topic, data) {
        console.log('Current temperature reading' + data.temperature);
        sensor.set({temperature:data.temperature});//Attempting to change backbone model

    });
}, function() {
    console.warn('WebSocket connection closed');
}, {
    'skipSubprotocolCheck' : true
});

我正在尝试使用插槽中的温度读数来更改/更新模型。如您所见，我已经尝试了sensor.set并尝试了以下内容：

App.model.set

This.model.set

App.sensor.set

每种不同的方式都表示未定义或未找到的功能。我在这里错过了什么吗？它们都在同一$(function(){}

中声明

如何从我的Autobahn套接字功能更新我的骨干模型？

Answer 1

Backbone.Model.extend({})返回一个类，而不是实例。你应该写：

var Sensor = Backbone.Model.extend({});
var sensor = new Sensor();

sensor.on('change:temperature', function (temperature) {
  console.log('new temperature: ' + temperature);
});

var conn = new ab.Session('ws:localhost:8080', function() {
    conn.subscribe('temperature', function(topic, data) {
        console.log('Current temperature reading' + data.temperature);
        sensor.set({temperature:data.temperature});//Attempting to change backbone model

    });
}, function() {
    console.warn('WebSocket connection closed');
}, {
    'skipSubprotocolCheck' : true
});

骨干更新模型

1 个答案: