How do I include the JSON root in an array when including associations?

Question

This is similar to include root in json for array? , but slightly different.

I have an object Alpha with a has_many association to Beta. I'm rendering Alpha as JSON and want to include Beta.

@alpha.as_json(:include => :beta)

This works great, and since I have include_root_in_json set to true, the root of alpha is outputted.

{"alpha":
  {
    "created_at":"2012-06-07T23:37:30Z",
    "id":1,
    "beta":[
      {
        "created_at":"2012-06-11T23:46:58Z",
        "id":1,
      }
    ]
  }
}

I want to include the root in the beta array as well, but I can't seem to find a way to do this.

Answer 1

尝试将关联的root选项设置为true ：

@alpha.as_json(:include => { :beta => { :root => true } })

Answer 2

My solution was to use RABL (https://github.com/nesquena/rabl). It provides better formatting control for JSON.