ruby on rails - track history of active record changes and its association -


i want track history active record , association. have many many association:

class booklist   has_many :book_list_items   has_many :books, through: :book_list_items end  class booklistitem   belongs_to :book   belongs_to :book_list    attr_accessable :position end  class book   has_many :book_list_items   has_many :book_lists, through: :book_list_items end

how track history of booklist this:

  • add book book list
  • remove book book list
  • update position of book in book list

how implement structure

http://railscasts.com/episodes/255-undo-with-paper-trail

this great rails cast work great based on information provided


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