如何連接來自不同文件的事件？ Javascript /骨幹

Question

我想用一個文件的.on方法來偵聽另一個文件，如果發生更改，我希望它觸發一個新視圖的渲染。這是我的嘗試，甚至將某些東西打印到控制檯，它不起作用。

這是我的路由器文件：

define([ 
    'jquery', 
    'underscore', 
    'backbone', 
    'views/page', 
    'models/search', 
    'views/search', 
    'text!templates/search.html' 
], function($, _, Backbone, PageV, SearchM, SearchV, SearchT) { 
    var vent = _.extend({}, Backbone.Events); 
    var AppRouter = Backbone.Router.extend ({ 
     routes: { 
      'page/:id': 'showPage', 
      's': 'showView' 
     } 
    }); 
    var initialize = function() { 
     var app_router 
     app_router = new AppRouter; 
     app_router.on('route:showPage', function (id) { 
      var page = new PageV(); 
      page.render(id); 
     }); 

     **app_router.on('route:showView', function() { 
      var searchM = new SearchM({vent: vent}); 
      var search = new SearchV({model: searchM, vent: vent}); // 
      $('#Sirius').html(SearchT); 
      search.render();  
       vent.on('nextPage', this.printCons); 
       function printCons() { 
      console.log('printing from listening') 
      };** 


     }); 


     Backbone.history.start(); 
    }; 
    return { 
     initialize: initialize 
    }; 
}); 

這是搜索視圖文件，所呈現的，但不是要求在路由器中的console.log功能（即羣星環繞）

define([ 
    'jquery', 
    'underscore', 
    'backbone', 
    'models/search', 
    'text!templates/search.html', 

], function($, _, Backbone, SearchM, SearchT){ 
    var vent = _.extend({}, Backbone.Events); 
    var Search = Backbone.View.extend({ 
    el: $("#Sirius"), 

    events: { 
     'submit #searchMusic': 'search' 
    }, 

    search: function (e) { 
     console.log('searching...'); 
     e.preventDefault(); 
     var _this, that; 
     _this = this; 
     that = this.model; 
     //post instance to the server with the following input fields 
     this.model.save({ 
     channel: $('#channel').val(), 
     week: $('#week').val(), 
     year: $('#year').val(), 
     filter: $('#filter').val() 
     },{success: storeMusic }); 

     function storeMusic (that, response, options) { 
     console.log('store'); 
     //create new instance of the localStorage with the key name 
     _this.model.localStorage = new Backbone.LocalStorage("music"); 

     _this.clearLocalStorage(_this); 

     _this.saveToLocalStorage(response, _this); 
     }; 

    }, 

     clearLocalStorage: function (_this) { 
     console.log('clear'); 
      //removes the items of the localStorage 
      _this.model.localStorage._clear(); 

      //pops out the first key in the records 
      _this.model.localStorage.records.shift(); 

     }, 
     saveToLocalStorage: function (response, _this) { 
      console.log('save'); 
     _this.model.save({music: response}, {success: _this.nextPage}); 
     }, 


     nextPage: function (_this, response, options) { 
      console.log('entered next page'); 
      vent.trigger('nextPage', this.model) 

     } 
    }); 
    return Search; 
}); 

該功能正在被調用，一切工作正常，我正在努力讓事件在路由器端聽到，所以我可以讓用戶導航到另一個頁面後點擊提交按鈕，並返回的響應成功存儲本地存儲。 nextPage函數確實被調用，但我認爲我沒有正確實現vent.trigger或.on ...我在路由器和視圖中都調用它（var vent = ...）

Answer 1

var vent = _.extend({}, Backbone.Events); 

通風孔在兩個js文件中都被初始化，這兩個文件創建了兩個不連接的對象。要在搜索視圖文件中解決此問題，請刪除發佈宣告在接下來的頁面功能變化

vent.trigger('nextPage', this.model) 

到

var vent = this.model.get('vent'); 
vent.trigger('nextPage', this.model)