-1

我的backbone.js中有以下模型-

var Book = Backbone.Model.extend({

    defaults: {
        id: 0,
        title: 'Book',
        price: 100,
        quantity: 0
    }  

});

与集合为，

var BookList = Backbone.Collection.extend({

    model: Book,

    url: function () {
        return 'Handler.ashx'            
    }

});

通过在这个主干中使用 collection.fetch() 方法，我可以使用以下 handler.ashx 从数据库中获取书籍列表

<%@ WebHandler Language="VB" Class="Handler" %>

Imports System
Imports System.Web
Imports System.Web.Script.Serialization
Imports System.Data.OleDb
Imports System.Data
Imports MySql.Data.MySqlClient


Public Class Handler : Implements IHttpHandler

    Public Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
            Dim detail As List(Of MyBookList) = GetBookDetail()

            If detail.Count > 0 Then
                context.Response.ContentType = "application/json"
                Dim json As String = New JavaScriptSerializer().Serialize(detail)
                context.Response.Write(json)
            Else
                context.Response.StatusCode = 404
           End If
    End Sub

    Public ReadOnly Property IsReusable() As Boolean Implements IHttpHandler.IsReusable
        Get
            Return False
        End Get
    End Property

    Protected Function GetBookDetail() As List(Of MyBookList)

        Dim ConnectionString As String = ConfigurationManager.ConnectionStrings("con").ConnectionString
        Dim sqlConn As New MySqlConnection(ConnectionString)
        Dim sqlCommand As New MySqlCommand
        sqlCommand.Connection = sqlConn
        Dim dReader As MySqlDataReader
        Dim dtExcelRecords As New DataTable()
        Dim ds As New DataSet()
        sqlConn.Open()

        sqlCommand.CommandText = "SELECT * FROM booklist "
        sqlCommand.CommandType = CommandType.Text
        dReader = sqlCommand.ExecuteReader()

        Dim book As New List(Of MyBookList)

        If dReader.HasRows Then
            While dReader.Read()
                Dim bookObject As New MyBookList
                bookObject.title = dReader(0)
                bookObject.price = dReader(1)
                bookObject.id = dReader(2)
                bookObject.quantity = dReader(3)
                book.Add(bookObject)
            End While
        End If

        Return book
    End Function
End Class

我想知道应该将哪些代码添加到backbone.js 和处理程序以更新书单集合中的特定模型。单击保存按钮时，我触发了以下保存方法..

updateBookTitle: function () {
        var a = $('.title').val();
        this.model.set({ title: a });
        this.model.save();        
    },

保存时应如何修改处理程序 url 以发布模型 ID？

4

1 回答 1

0

Backbone 旨在与 RESTful 服务一起使用，而 WebForms 则不是。使用 .NET，您应该真正考虑使用 WebAPI 或 MVC 框架。如果您必须使用网络表单，则需要修改 Backbone 的sync工作方式，或者您必须在 .aspx 中手动编写基于请求的 HTTP 方法的操作：GET=List、POST=Save、PUT=Update、DELETE=删除。

于 2013-09-24T14:46:24.083 回答