骨干视图触发事件委托多次

Question

嗨，所以我必须在骨干网与此类似

app.FileListItemView = Backbone.View.extend({ 
    tagName: 'li', 
    className: 'list-group-item clearfix', 
    events: { 
     'click .download-action': 'download' 
    }, 
    template: _.template(
      "<div class='pull-left' style='width: 80%'>\n\ 
       <%= name %><br><span style='font-size: 10px;'><%= path %></span>\n\ 
      </div>\n\ 
      <div class='pull-right' style='width: 20%'>\n\ 
       <div class='dropdown'>\n\ 
        <button class='btn btn-default dropdown-toggle' type='button' data-toggle='dropdown'>\n\ 
         Actions\n\ 
         <span class='caret'></span>\n\ 
        </button>\n\ 
        <ul class='dropdown-menu' role='menu'>\n\ 
         <li class='download-action' data-id='<%= id %>' data-accountid='<%= accountid %>' role='presentation'><a class='super-anchor' role='menuitem' tabindex='-1' href='#'>Download</a></li>\n\ 
        </ul>\n\ 
       </div>\n\ 
      </div>" 
      ), 
    initialize: function() { 
    }, 
    render: function() { 
     this.$el.html(this.template(this.model)); 
     return this; 
    }, 
    download: function (event) { 
     //console.log(this.$el.find('.download-action-link').data('id')); 
     var el = this.$el.find('.download-action'); 
     var id = el.data('id'); 
     var accountid = el.data('accountid'); 
     var url = app.config.get('apiURL'); 
     var apiKey = app.config.get('apiKey'); 

     console.log(el.prop('tagName')); 

     $.ajax(url + '/accounts/' + accountid + '/links', { 
      data: { 
       'file_id': id, 'direct': true 
      }, 
      headers: { 
       Authorization: 'ApiKey ' + apiKey 
      }, 
      type: 'POST', 
      success: function (data) { 
       if (data.active) { 
        var a = el.find('.super-anchor'); 
        console.log(a); 
        //change this part 
        //a.attr('href', data.url).trigger('click'); 
        //to this 
        a.attr('href', data.url).on('click', function(event){ 
         event.preventDefault(); 
         event.stopPropagation(); 
        })[0].click(); 
       } 
      } 
     }); 
    } 
}); 

的想法看法是，当我点击LI与“下载行动”类的下载方法在我看来，应该从ajax调用中选择一个url，然后将其添加到LI下的anchot标签的href attr，然后触发锚点，但是当我这样做时，下载方法开始是无限期地调用循环，可以告诉我为什么会发生这种情况？谢谢！！！！

Answer 1

我假设触发的点击事件正在传播到li.dow​​nload-action，然后再次启动ajax下载功能。解决方案是使用window.location.href将用户导航到新的url或将该链接移出边li.dow​​nload-action。