如何生成与Backbone.js的型号标识 [英] How to generate model id's with Backbone.js

问题描述

我设立的骨干同步机制，有点糊涂，其中生成的ID为模特。

当我创建一个新的模式，应该骨干网发电和设置ID，或者我应该实现一个ID生成的方法，或者是有某种机制在哪里PUT数据到服务器，该服务器产生id和返回模型中的id？

解决方案

  

    

或者是有某种机制在哪里PUT数据到服务器，该服务器产生的ID，并返回一个模型中的id？

  

类。当你调用模型的save方法，骨干进行POST XHR和应用程序服务器使用JSON包含一个ID应该响应。
你可以在这里看到一个例子：<一href=\"http://addyosmani.com/blog/building-backbone-js-apps-with-ruby-sinatra-mongodb-and-haml/\">http://addyosmani.com/blog/building-backbone-js-apps-with-ruby-sinatra-mongodb-and-haml/

从引用链接：

 后/ API /：事'做
  ＃解析的内容后身体被张贴，转换为字符串，插入
  ＃收集#thing并返回的ObjectId作为参考的字符串
  OID = DB.collection（PARAMS [：东西]）。插入（JSON.parse（request.body.read.tos））
  {\\ID \\：\\＃{oid.to_s} \\}
结束
 

如果您不知道红宝石记住什么被评为前最后pression自动由该方法返回。

I am setting up the backbone sync mechanism and am a bit confused where to generate the id's for the models.

When I create a new model, should backbone be generating and setting the id, or am i supposed to implement an id generation method, or is there some sort of mechanism where I "PUT" the data to the server, which generates the id and returns a model with the id?

解决方案

or is there some sort of mechanism where I "PUT" the data to the server, which generates the id and returns a model with the id?

Kind of. When you call the save method of your model, backbone make a POST XHR and your application server should respond with JSON contains an id. You can see an example here: http://addyosmani.com/blog/building-backbone-js-apps-with-ruby-sinatra-mongodb-and-haml/

Quoting from the link:

post '/api/:thing' do 
  # parse the post body of the content being posted, convert to a string, insert into 
  # the collection #thing and return the ObjectId as a string for reference 
  oid = DB.collection(params[:thing]).insert(JSON.parse(request.body.read.tos)) 
  "{\"id\": \"#{oid.to_s}\"}" 
end

If you don't know Ruby keep in mind what the last expression that is evaluated is automatically returned by the method.

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