Backbone.LayoutManager委託視圖事件

Question

我一直在使用Backbone.LayoutManager處理原型骨幹應用程序，我遇到了一些我不明白的東西。

這種情況是我有一個表格，用於將「people」{firstname，lastname}添加到列表視圖中，我將模型保存好並且新項目顯示在列表中。我也有一個刪除功能，在刷新頁面後工作，但如果我嘗試刪除剛剛創建的用戶而不進行頁面刷新，則removeUser（）函數永遠不會被調用。

我的代碼如下。有人可以幫我嗎？我只是想學習Backbone，如果你有這個問題的答案以及其他任何批評，我會很感激。謝謝。

define([ 
    // Global application context. 
    "app", 

    // Third-party libraries. 
    "backbone" 
], 

function (app, Backbone) { 
    var User = app.module(); 

    User.Model = Backbone.Model.extend({ 
     defaults : { 
      firstName: "", 
      lastName: "" 
     } 
    }); 

    User.Collection = Backbone.Collection.extend({ 
     model: User.Model, 
     cache: true, 
     url: "/rest/user" 
    }); 

    User.Views.EmptyList = Backbone.View.extend({ 
     template: "users/empty-list", 
     className: "table-data-no-content", 
     render: function (manage) { 
      return manage(this).render().then(function() { 
       this 
        .$el 
        .insertAfter(".table-data-header") 
        .hide() 
        .slideDown(); 
      }); 
     } 
    }); 

    User.Views.Item = Backbone.View.extend({ 
     template: "users/user", 
     tagName: "ul", 
     className: "table-data-row" 
     events: { 
      "click .remove": "removeUser" 
     }, 
     removeUser: function() { 
      console.log(this.model); 
      this.model.destroy(); 
      this.collection.remove(this.model); 
      this.$el.slideUp(); 
      if (this.collection.length === 0) { 
       this.insertView(new User.Views.EmptyList).render(); 
      } 
     } 
    }); 

    User.Views.List = Backbone.View.extend({ 
     initialize: function() { 
      this.collection.on("change", this.render, this); 
     }, 
     render: function (manage) { 
      if (this.collection.length > 0) { 
       jQuery(".table-data-no-content").slideUp("fast", function() { 
        $(this).remove(); 
       }); 
       this.collection.each(function(model) { 
        this.insertView(new User.Views.Item({ 
         model: model, 
         collection: this.collection, 
         serialize: model.toJSON() 
        })); 
       }, this); 
      } else { 
       this.insertView(new User.Views.EmptyList()); 
      } 

      // You still must return this view to render, works identical to 
      // existing functionality. 
      return manage(this).render(); 
      } 
    }); 

    User.Views.AddUser = Backbone.View.extend({ 
     template: "users/add-user", 
     events: { 
      "click input#saveUser": "saveUser" 
     }, 
     render: function (manage) { 
      return manage(this).render().then(function() { 
       $("input[type='text']") 
        .clearField() 
        .eq(0) 
        .focus(); 
      }); 
     }, 
     saveUser: function() { 
      var user = new User.Model({ 
       firstName: $(".first-name").val(), 
       lastName: $(".last-name").val() 
      }); 

      this.collection.create(user); 

      this 
       .$("input[type='text']") 
       .val("") 
       .clearField("refresh") 
       .removeAttr("style") 
       .eq(0) 
       .focus(); 
     } 
    }); 

    return User; 

}); 

Answer 1

問題原來是來自服務器的錯誤響應。一旦服務器發回正確的JSON對象，一切正常。