The simplest example of Knockback js working with a RESTful webservice such as ServiceStack?

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I am looking for a VERY simple example that shows wiring up Knockback code to a backbone model that connects via RESTful service. I am using ServiceStack|c# backend. All of th

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感动是毒

2021-02-06 09:28

With much help and support from Kevin Malakoff from the great Knockback project I was able to get a small example working! I used the ServiceStack Backbone Todos project as a starting point.

c# file: Global.asax.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.SessionState;

using ServiceStack.Redis;
using ServiceStack.ServiceInterface;
using ServiceStack.WebHost.Endpoints;

namespace MyApp
{
    public class Person
    {
        public int Id { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
    }

    public class PersonService : RestServiceBase<Person>
    {
        public static Person kevin = new Person { Id = 1, FirstName = "Kevin", LastName = "Malakoff" };
        public static Person scott = new Person { Id = 2, FirstName = "Scott", LastName = "Idler" };
        public static List<Person> people = new List<Person> { kevin, scott };

        public override object OnGet(Person person)
        {
            if (person.Id != default(int))
                return people[person.Id-1];
            return people;
        }

        public override object OnPost(Person person)
        {
            return base.OnPost(person);
        }

        public override object OnPut(Person person)
        {
            return OnPost(person);
        }

        public override object OnDelete(Person person)
        {
            return base.OnDelete(person);
        }
    }

    public class AppHost : AppHostBase
    {
        public AppHost() : base("MyApp", typeof(PersonService).Assembly) { }

        public override void Configure(Funq.Container container)
        {
            ServiceStack.Text.JsConfig.EmitCamelCaseNames = true;
            Routes
              .Add<Person>("/persons")
              .Add<Person>("/persons/{Id}");
        }
    }

    public class WebApiApplication : System.Web.HttpApplication
    {
        protected void Application_Start(object sender, EventArgs e)
        {
            new AppHost().Init();
        }
    }
}

html file: default.html

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <title>MyApp2</title>
    <script>window.JSON || document.write('<script src="http://ajax.cdnjs.com/ajax/libs/json2/20110223/json2.js">\x3C/script>')</script>
    <script src="Scripts/jquery-1.8.0.js" type="text/javascript" ></script>
    <script src="Scripts/knockback-full-stack-0.16.1.js" type="text/javascript" ></script>
    <script src="myapp.js" type="text/javascript" ></script>
  </head>
<body>
    <div id="myapp">
        <div class="title">
            <h1>MyApp</h1>
        </div>
        <div class="content">
            <div id='kb_observable'>
                <p>First name: <input class='text' data-bind="value: firstName" /></p>
                <p>Last name: <input class='input-small pull-right' data-bind="value: lastName" /></p>
                <p>Hello, <span data-bind="text: fullName"></span>!</p>
            </div>
            <div id="kb_collection_observable">
                <div data-bind="if: persons">
                    <span>Has Persons</span>
                </div>
                <div data-bind="foreach: persons">
                    <p>First name: <input class='text' data-bind="value: firstName" /></p>
                    <p>Last name: <input class='input-small pull-right' data-bind="value: lastName" /></p>
                </div>
            </div>
        </div>
    </div>
</body>
</html>

javascript file: myapp.js

$(function() {

//model
var PersonModel = Backbone.Model.extend({ urlRoot: '/MyApp/persons' });
var model = new PersonModel({ id: 1 });
model.fetch();

//viewmodel
var PersonViewModel = function (person) {

    this.firstName = kb.observable(person, 'firstName');
    this.lastName = kb.observable(person, 'lastName');
    this.fullName = ko.computed((function () {
        return "" + (this.firstName()) + " " + (this.lastName());
    }), this);
};
var personViewModel = new PersonViewModel(model);

//binding
ko.applyBindings(personViewModel, $('#kb_observable')[0]);

//model
var PersonsModel = Backbone.Collection.extend({ model: PersonModel, url: '/MyApp/persons' });
var personsModel = new PersonsModel();
personsModel.fetch();

//viewmodel
var PersonsViewModel = function (persons) {
    this.persons = kb.collectionObservable(persons)
};
var personsViewModel = new PersonsViewModel(personsModel);

//binding
ko.applyBindings(personsViewModel, $('#kb_collection_observable')[0]); });

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谎友^

2021-02-06 09:43

I put together a very simple example. It assumes you already know how to use backbone and knockout so this just gives a quick example of how they can be used together

http://coder2.blogspot.com/2013/02/backbonejs-and-knockoutjs.html

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