Backbone.js的：节省本地存储一个模型 [英] Backbone.js: saving one model in local storage

问题描述

我使用杰罗姆的localStorage的适配器（<一个href=\"https://github.com/jeromegn/Backbone.localStorage\">https://github.com/jeromegn/Backbone.localStorage)与骨干网和它收藏的伟大工程。

不过，现在我有我需要保存一个单一的模式。所以，在我的模型我设置：

 的localStorage：新店（味精）
 

然后我做我的保存和读取。我的问题是，每次我做了刷新和初始化我的应用我的模型的新的再presentation被添加到本地存储，请看下面。

我在做什么错了？

  window.localStorage.msg = {
  //第一次运行后创建
  1de5770c-1431-3b15-539b-695cedf3a415：{
    头衔：首先运行
    ID：1de5770c-1431-3b15-539b-695cedf3a415
  }，
  //第二次运行后创建
  26c1fdb7-5803-A61F-ca12-2701dba9a09e：{
    0：{
      头衔：首先运行
      ID：1de5770c-1431-3b15-539b-695cedf3a415
    }，
      头衔：第二轮
      ID：26c1fdb7-5803-A61F-ca12-2701dba9a09e
    }
  }
 

解决方案

我遇到了同样的问题。也许你有类似这样的东西。

  VAR设置= Backbone.Model.extend（{
  localStorage的：新店（设置），
  默认值：{A：1}
}）;变种S =新的设置;
s.fetch（）;
 

我改成

 变种S =新的设置（{ID：1}）;
 

id的

localStorage的适配器检查像

 案读：RESP = model.id？ store.find（模型）：store.findAll（）;打破;
 

所以 0 或，中的id不会工作，这将返回所有车型在一个

I'm using Jerome's localStorage adapter (https://github.com/jeromegn/Backbone.localStorage) with Backbone and it works great for collections.

But, now I have a single model that I need to save. So in my model I set:

localStorage: new Store("msg")

I then do my saves and fetch. My problem is that everytime I do a refresh and initialize my app a new representation of my model is added to localStorage, see below.

What am I doing wrong?

window.localStorage.msg = {
  // Created after first run
  "1de5770c-1431-3b15-539b-695cedf3a415":{
    "title":"First run",
    "id":"1de5770c-1431-3b15-539b-695cedf3a415"
  },
  // Created after second run
  "26c1fdb7-5803-a61f-ca12-2701dba9a09e":{
    "0":{
      "title":"First run",
      "id":"1de5770c-1431-3b15-539b-695cedf3a415"
    },
      "title":"Second run",
      "id":"26c1fdb7-5803-a61f-ca12-2701dba9a09e"
    }
  }

解决方案

I ran into same issue. Maybe you have something similar to this

var Settings = Backbone.Model.extend({
  localStorage: new Store("Settings"),
  defaults: { a: 1 }
});

var s = new Settings;
s.fetch();

I changed to

var s = new Settings({ id: 1 });

localStorage adapter check for id like

 case "read":    resp = model.id ? store.find(model) : store.findAll(); break;

so 0 or "" for id wont work and it will return all models in one

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