我试图了解 Backbone 和它的概念。我制作了一个简单的应用程序,以便我可以学习如何更多地了解 Backbone.Router 以及如何将 Backbone 与 Require.js 集成。
该应用程序在 Chrome、IE9 和 Safari 中运行良好,但在最新版本的 Firefox 中,它在触发和消耗点击事件后抛出“TypeError:this.model is undefined”错误。非常感谢您的帮助!
为方便起见,我在下面附上了整个应用程序的链接。
https://dl.dropbox.com/u/19138757/Backbone_Example.zip
我将评论发生错误的方法:
文档.js
define([
'jquery',
'underscore',
'backbone',
'app'
], function ($, _, Backbone, app) {
var DocumentListView = Backbone.View.extend({
tagName: 'li',
events: {
'click': function () {
app.aggregator.trigger('document:selected', this.model);
}
},
render: function () {
this.$el.html(this.model.get('title'));
return this;
}
});
return DocumentListView;
});
文档.js
define([
'jquery',
'underscore',
'backbone',
'data/documents',
'app',
'text!templates/documents.html'
], function ($, _, Backbone, documents, app, documentTemplate) {
app.aggregator.on('document:selected', function (document) {
var urlPath = 'view/' + document.get('title');
app.router.navigate(urlPath, { trigger: true });
});
DocumentView = Backbone.View.extend({
el: $('#my-container'),
template: _.template(documentTemplate),
events: {
'click h1': 'sayHello'
},
// This is the method where the error is occuring.
// this.model is undefined...but ONLY in Firefox
render: function () {
this.$el.empty().append(this.template(this.model.toJSON()));
return this;
},
sayHello: function () {
this.input = this.$('.message');
alert(this.input.val());
}
});
return DocumentView;
});
路由器.js
define([
'jquery',
'underscore',
'backbone',
'data/documents',
'views/contents',
'views/document'
], function( $, _, Backbone, documents, ContentsView, DocumentView ){
var DocumentRouter = Backbone.Router.extend({
routes: {
'contents': 'contents',
'view/:title': 'viewDocument'
},
contents: function(){
$('body').html(new ContentsView({collection: documents}).render().el);
},
viewDocument: function(title){
//get a single document instance by title and then pass into DocumentView
var selectedDocument = _(documents).find(function(document){
return document.get('title') === title;
});
$('body').empty().append(new DocumentView({model: selectedDocument}).render().el);
}
});
return DocumentRouter;
});