module that generates json for usage by sencha touch 2 nested list menu component

sencha.rb

module Sencha
  module NestedListMenu
    class << self
      # Sencha Touch nested list menu requires json in the form of:
      #
      #   {"text": "some identifier",
      #    "children": ["text": "child identifier", "other": "info", "leaf": "true"],
      #                [ ... ]
      #   },
      #   { ... }
      #
      # Note the "leaf" : "true" within the children element. This is important to indicate
      # this is the leaf of the nested tree menu for Sencha.
      #
      # You can override "text" and "children" to be whatever you want.
      #
      # The method takes a set of records as a param and converts the parent / children records into the desired
      # syntax. Here, the records are simply named parents and children, change as needed.
      def nested_list_json(parents)
        parents.reduce([]) do |agg, parent|
          agg << { text:     parent.text,
                   id:       parent.id,
                   children: parent.children.map { |c| {text: c.text, id: c.id, leaf: true }}
                 }
        end
      end
    end
  end
end

Hey Jeffrey, could you please explain a bit on how to run this against an existing json doc to generate sencha-nestedlist-friendly json? I've been struggling a bit to get a large json doc into this leaf-format. Thank you!