但是,当我执行单击时,我得到以下内容：

Uncaught TypeError: Cannot call method 'get' of undefined

看来,我正在记录的“这个”实际上就是模型本身：

_callbacks: Object
_changed: true
_escapedAttributes: Object
_prevIoUsAttributes: Object
attributes: Object
cid: "c0"
collection: r.d
id: "f5589ba4-a0aa-dd86-9697-30e532e0f975"
__proto__: n

我无法通过将我的上下文传递给model.bind来弄清楚为什么不能保留适当的“this”.

这是我的代码：

// Models
window.Panel = Backbone.Model.extend({

    defaults: function(){
        return {
            flipped: false,};
    },toggle: function(){
        this.save({flipped: !this.get("flipped")});
    },});


// Collections

window.PanelList = Backbone.Collection.extend({

    model:Panel,localStorage: new Store("panels"),flipped: function(){
        return this.filter(function(panel){ return panel.get("flipped"); })
    }   
});


// Global collection of Panels
window.Panels = new PanelList;

// Panel View

window.PanelView = Backbone.View.extend({ 

    tagName: 'div',template: _.template($("#panel-template").html()),events: {
        "click" : "toggle"
    },initialize: function(){
        this.model.bind("change",this.render,this) 
        $(this.el).html(this.template(this.model.toJSON()));
    },render: function(){    
        console.log(this);
        var flipped = this.model.get("flipped")
        if (flipped){
           $(this.el).addClass("flip"); 
        } else{
           $(this.el).removeClass("flip"); 
        }           
        return this   
    },toggle: function(){
        this.model.toggle(); 
    }
});