我一直在使用 Backbone.LayoutManager 开发原型 Backbone 应用程序，但遇到了一些我不明白的事情。
场景是我有一个用于将“人”{firstname, lastname} 添加到列表视图的表单，我很好地保存了模型并且新项目显示在列表中。我还有一个在页面刷新后可以使用的删除函数，但是如果我尝试删除我刚刚创建的人而不刷新页面，则永远不会调用 removeUser() 函数。
我的代码如下。有人可以帮我吗？我只是想学习 Backbone，如果您有这个问题的答案以及任何其他批评，我将不胜感激。谢谢。
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;
});