将对象数组从js传递到rails

本文介绍了将对象数组从js传递到rails的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在尝试将对象数组从js传递到rails

I am trying to pass an array of objects from js to rails

data.test = [{test: 'asdas'}] $.ajax({ url: 'evaluate.json', data: data, success: function(data){ }, dataType : "json" });

铁路

def evaluate logger.info("#{params.test}") end

在这里，记录器语句总是让我失望

Here the logger statement always gives me out put as

{"0"=>{"test"=>"asdas"}}

我期望下面的登录方式.

I am expecting the below log in rails.

[{:test=>"asdas"}]

推荐答案

您应该在Javascript中使用JSON.stringify，它使用数组或哈希作为参数(因为这是唯一有效的JSON构造).它返回一个表单，该表单是序列化为JSON的Javascript对象.

You should use JSON.stringify in Javascript, which takes either an array or hash as its argument (since these are the only valid JSON constructions). It returns a form which is the Javascript object serialized to JSON.

在Ruby端，您将收到一个JSON编码的字符串，因此您需要require 'json'(在Rails中自动完成)并使用JSON.parse(string).这将为您提供一个Ruby对象.

On the Ruby side, you'll receive a JSON encoded string, so you'll need to require 'json' (this is done automatically in Rails) and use JSON.parse(string). This will give you a Ruby object.