# File live_tree.rb, line 39
        def live_tree(name, options = {})
            raise ":model, :model_class_name, or :find_item_proc option is required" if options[:model] == nil && options[:model_class_name] == nil && options[:find_item_proc] == nil
            if options[:model_class_name] != nil
                model = options[:model_class_name]
            else
                model = Inflector.camelize(options[:model])
            end
            self.const_set("LIVE_TREE_OPTIONS_" + name.to_s.upcase, options);
            code = "" +
                "def _#{name}_live_tree_options\n" +
                "    LIVE_TREE_OPTIONS_" + name.to_s.upcase + "\n" +
                "end\n" +
                "def _#{name}_find_live_tree_item\n" +
                (options[:find_item_proc] == nil ? 
                    ("    " + model + ".find(live_tree_item_id)\n") :
                    ("    _#{name}_live_tree_options[:find_item_proc].call(live_tree_item_id)\n")) +
                "end\n" +
                "def #{name}_live_tree_data\n" +
                "    get_live_tree_data(_#{name}_find_live_tree_item, _#{name}_live_tree_options)\n" +
                "end\n"
            class_eval code
        end