如何在Rails中将JSON数据转换为PList数据？

Question

I am querying an external service which is passing back JSON data. I'd like to format this data as a binary PList to send it out to clients. How can I do that conversion in Rails? This is a complex data structure with arrays & hashes as well as strings & integers.

Based on the comment, I am trying this:

def friends_facebook
  @graph = Koala::Facebook::GraphAPI.new(current_user.facebook_token.token)
  render :plist => JSON.parse(@graph.get_connections("me", "friends").to_json)
end

Which results in the error (on the render line):

incompatible encoding regexp match (ASCII-8BIT regexp with UTF-8 string)

Answer 1

Using http://plist.rubyforge.org/ and http://flori.github.com/json/ :

JSON.parse(input).to_plist

You might have to write your own to_plist_node method(s) for your data structure(s).