将对象数组从js传递到rails

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

我正在尝试将一系列对象从js传递到rails。

data.test = [{test: 'asdas'}]

$.ajax({
  url: 'evaluate.json',
  data: data,
  success: function(data){
  },
  dataType : "json"
});

Rails

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

Here the logger statement always gives me out put as

这里logger语句总是输出as

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

I am expecting the below log in rails.

我期待着下面的日志记录在rails中。

 [{:test=>"asdas"}]

2 个解决方案

#1

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.

您应该使用JSON。Javascript中的stringify，它以数组或散列作为参数(因为这些是唯一有效的JSON结构)。它返回一个将Javascript对象序列化为JSON的表单。

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.

在Ruby端，您将收到一个JSON编码的字符串，因此需要使用' JSON '(这在Rails中是自动完成的)并使用JSON.parse(string)。这将为您提供一个Ruby对象。

#2

Try this:

试试这个:

data.test = [{test: 'asdas'}]

$.ajax({
  url: 'evaluate.json',
  data: JSON.stringify(data),  // Explicit JSON serialization
  contentType: 'application/json',  // Overwrite the default content type: application/x-www-form-urlencoded
  success: function(data){
  },
  dataType : "json"
});

#1