Adds an attributize() method to javascript String objects. Converts the sender string into an object attribute format for submission to a server.

string_extensions.js

Object.extend(String.prototype, {
  /**
   * Converts an underscore string into object attribute format for submission
   * to a server (Based on Rails).
   *
   * To attributize the string client_firstName
   *   "client_firstName".attributize()
   *   => client[first_name]
   *
   * To attributize the string client_addresses__street
   *   "client_addresses__street".attributize()
   *   => client[addresses][][street]
   */
  attributize: function() {
    var parts = this.split("_");
    var attributized_string = "";

    parts.each(function(s, index) {
      s = s.underscore();

      if(index > 0)
        s = '[' + s + ']';

      attributized_string += s;
    });
    
    return attributized_string;
  }
});