gistfile1.txt

  def feeds_counts
    @result = []
    current_user.feeds.each do |feed|
      @result << {
        id: feed.id,
        title: feed.title,
        count: feed.post_count_since_last_read
      }
    end

    respond_to do |format|
      format.json { render json: @result }
    end
  end

# feed_params = [
#  {id: 1, title: 'test 1', post_count_since_last_read: 2},
#   {id: 2, title: 'test 2', post_count_since_last_read: 23}
# ]

# feeds = feed_params.map {|p| Feed.new(p) }

require 'ostruct'
class Feed < OpenStruct
  include Enumerable

  def to_feed_count_json
    { 
      id: id, title: title, 
      count: post_count_since_last_read
    }
  end
end

@result = feeds.map(&:to_feed_count_json)