我正在尝试使用Derick Bailey在此article中的建议来管理主干中的页面过渡,但是about路由未呈现。它仅使用app.BookListView呈现原始路线,并且当我单击以访问About路线时,它将保留app.BookListView。

这是我的代码:

的HTML

<section class="feed">
</section>
<script id="bookTemplate" type="text/template">

        <div class="book">
        </div>

</script>

 <script id="aboutTemplate" type="text/template">

         <div class="about">
         Bla bla bla bla
         </div>

  </script>


观点

Backbone.View.prototype.close = function(){
   this.remove();
   this.unbind();
};

function AppView(){
    this.showView(view) {

        if (this.currentView){
        this.currentView.close();
        }

        this.currentView = view;
        this.currentView.render();
        $('.feed').html(this.currentView.el);
     }
 };

app.BookView = Backbone.View.extend ({
    tagName: 'div',
    className: 'book',

template: _.template( $( '#bookTemplate' ).html()),

render: function() {
    this.$el.html(this.template(this.model.toJSON()));
    return this;
}
)};

app.BookListView = Backbone.View.extend({
    el: '.feed',
    initialize: function ( initialBooks ) {
        this.collection = new app.BookList (initialBooks);
        this.render();
     },

    render: function() {
         this.collection.each(function( item ){
                this.renderBook( item );
         }, this);
     },

    renderBook: function ( item ) {
         var bookview = new app.BookView ({
              model: item
         })
         this.$el.append( bookview.render().el );
         }
    });

 app.AboutView = Backbone.View.extend({
     tagName: 'div',
     className: 'about',

     template: _.template( $( '#aboutTemplate' ).html()),

     render: function () {
         this.$el.html(this.template());
         return this;
     }
 });


路由器

var AppRouter = Backbone.Router.extend({
    routes: {
        '' : 'home',
        'about' : 'about'
    },

    initialize: function(options){
        this.AppView = options.AppView;
    },

    home: function () {
         var homeView = new app.BookListView();
    this.AppView.showView(homeView);
    },

    about: function () {
          var aboutView = new app.AboutView();
          this.AppView.showView(aboutView);
    }
});

app.Router = new AppRouter();
Backbone.history.start();


和一些数据来测试BookView:

$(function(){
    var books = [
        {title:'Imperial Bedrooms'},
        {title:'Less than Zero'},
     ];
new app.BookListView (books);


JSFiddle:http://jsfiddle.net/swayziak/xdRRE/

控制台抛出以下错误:


未捕获到的SyntaxError:意外令牌{,在“ this.showView(view){”中
未捕获的TypeError:无法读取“ this.AppView = options.AppView”中未定义的属性“ AppView”


谢谢。

最佳答案

您有语法错误,....错位或缺少字符,未定义的对象。

new app.BookListView (books);



var bookListView  =  new app.BookListView (books);


以下将不起作用:

  this.showView(view) {

    if (this.currentView){…


我想你想要这个吗?

this.showView = function(view){…}


以下行也会引发错误:

app.BookView = Backbone.View.extend ({…)};


它应该是:

app.BookView = Backbone.View.extend ({…});


为了下一行工作:

this.AppView.showView(homeView);


您必须在初始化时通过appview

app.Router = new AppRouter(appView);


我会尝试清理您的小提琴,您使用的是哪种代码编辑器?因为所有错误都与语法有关。

更新

这是一个fiddle

您的家乡路线的问题是在这条线上:

home: function () {
    if(!this.bookListView){
        this.bookListView = new app.BookListView();
    }
},


应该是:

home: function () {
    if(!this.bookListView){
        this.bookListView = new app.BookListView(books);
    }else{
        this.bookListView.render();
    }
},

09-25 17:11