无法使服务器上更新一个id [英] Unable to make an update on the server with an id

问题描述

我更新的形式，我想使对serverwith一个id的更新请求
我的模型是：

I am updating a form and i want to make an update request on the serverwith an id my model is:

    var CampaignEditModel = Backbone.Model.extend({
    urlRoot:"http://localhost:3033/campaign/update/",
    url : function(){
       var url = this.urlRoot + this.id;
        return url;
    },
    idAttribute: "_id",
    defaults:{
        "id":null ,
        "Name" :""            
    }
});

渲染功能，这里所说的：

render function is called here:

  $contents.empty().append(new EditView({model:editCampaigns}).render({id:id}).el);

和渲染功能是：

render: function(options){
        this.$el.append( _.template(EditTemplate));
        this.model.set({"id":options.id})
        console.log(this.model.get("id"));
        this._modelBinder.bind(this.model, this.el);
        return this;
    },
    events: {
        'click .saveCampaign ': 'save'

    },
    save:function(){
        this.model.set({
            "Name" :$('#edname').val(),
        });
        this.model.save(null, {success: function(data){
            console.log("data:" + data);
            require(['campaignroute'],function(routes){
                var router = routes.pageRouter;
                router.navigate('gridView', {trigger: true});
            });
        }});
        return false;
    }

问题连我都在模型中设置一个ID时仍然保存方法被调用
 要求是这样的

the problem is even i have set an id in the model still when save method is called the request go like this

http://localhost:3033/campaign/update/undefined

和控制台显示eror：

and console shows the eror:

Failed to load resource: the server responded with a status of 404 (Not Found)

如何解决这个问题呢？

how to solve this problem?

推荐答案

渲染（选项）的功能和设置模式 ID 还有，设置它直接在 editCampaigns 模式，进入前渲染（选项）：

Instead of passing options to your custom render(options) function and setting the model id there, set the it directly on the editCampaigns model, before entering render(options):

editCampaigns.set('id', id);
$contents.empty().append(new EditView({model:editCampaigns}).render().el);

和删除多余的

this.model.set({"id":options.id})

从渲染（选项）与选项一起参数。它应该看起来像类似于这样：

from render(options) together with the options parameter. It should look like similar to this:

render: function(){
    this.$el.append( _.template(EditTemplate));
    console.log(this.model.get("id"));
    this._modelBinder.bind(this.model, this.el);
    return this;
}

您模式也有一个额外的网​​址功能：

Your model also has an extra url function:

url : function(){
   var url = this.urlRoot + this.id;
    return url;
}

您不需要这个，因为模型 ID 在 urlRoot 将自动添加。

you don't need this one since the models' id is automatically appended after urlRoot.

的无关的给你的问题​​，我看你用

Unrelated to you problem I see you used

http://localhost:3033/campaign/update

来定义您的更新网址。您使用的HTTP方法，已经说的动作会被执行什么，这就是为什么你可以（也应该）写网址没有动词的原因。只是删除多余的 /更新的

下面是关于最佳实践的快速摘要：
如何在没有动词创建REST的网址？

Here is a quick summary about best-practices: How to create REST URLs without verbs?

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