我保存模型,我从服务器端获得了更新数据库的确定响应。我要做的是重新获取集合并使用保存的模型信息更新视图。我错过了一些小事,但我无法理解。
$(document).ready(function () {
window.App = {
Models: {},
Collections: {},
Views: {}
};
window.template = function(id){
return _.template( $('#' + id).html() );
};
// Person Model
App.Models.Person = Backbone.Model.extend({
defaults: {
id: null,
question: null,
quizid: null,
answerid: null
},
url: function() {
return 'myurl/';
}
});
App.Collections.People = Backbone.Collection.extend({
model: App.Models.Person,
url: 'myurl/'
});
App.Views.People = Backbone.View.extend({
tagName: 'ul',
render: function(){
this.collection.each(function(person){
var personView = new App.Views.Person({ model: person });
this.$el.append(personView.render().el);
}, this);
return this;
}
});
App.Views.Person = Backbone.View.extend({
tagName: 'li',
template: template('personTemplate'),
events: {
"click #saveButton" : "savedata",
},
savedata: function(event){
//alert(this.model.get("id") + " " + $('#title').val());
var newModel = new App.Models.Person();
newModel.save({id: this.model.get("id"), question: $('#title').val()}, {
wait : true,
success: function (response) {
alert(response.responseText);
},
error: function (model, response) {
alert(response.responseText);
}
}
);
},
render: function(){
this.$el.html(this.template(this.model.toJSON()));
return this;
}
});
var peopleCollection = new App.Collections.People;
peopleCollection.fetch({
success: function(){
var peopleView = new App.Views.People({collection: peopleCollection});
$('body').append(peopleView.render().el);
}});
var pw = new peopleView({collection: personCollection});
pw.render();
答案 0 :(得分:1)
如果要在编辑模型数据后刷新视图,则必须侦听sync
或change
事件并重新呈现视图。
App.Views.Person = Backbone.View.extend({
initialize: function(params) {
this.listenTo(this.model, 'sync', this.render);
}
});
如果您要添加全新模型,则需要在创建后立即将其添加到集合中。
newModel.save({id: this.model.get("id"), question: $('#title').val()} //...
this.collection.add(newModel)
并在人员视图中收听add
个事件
this.lisenTo(this.collection, 'add', this.render
App.Views.People = Backbone.View.extend({
initialize: function(params) {
this.listenTo(this.collection, 'add remove sync', this.render);
},
render: function(){
this.$el.empty();
this.collection.each(function(person){
var personView = new App.Views.Person({ model: person });
this.$el.append(personView.render().el);
}, this);
return this;
}
});
在这种情况下,重新整理整个集合是多余的。