Question

I’m using Mongoid::Versioning which works great except that I would like to prevent several fields from being versioned.

There’s not a lot of info written about it in the docs so I’m not sure how to do this.

http://mongoid.org/docs/extras.html

class Person
  include Mongoid::Document
  include Mongoid::Versioning

  # keep at most 5 versions of a record
  max_versions 5
end

They show how to skip a version altogether but not how to restrict certain fields from being versioned.

Any ideas?

UPDATE

I found something like this digging through the code, but I’m not sure how to use it.

https://github.com/mongoid/mongoid/blob/master/lib/mongoid/versioning.rb#L90

Answer 1

You can probably find a way to do this, but I would suggest checking out this gem instead.

https://github.com/aq1018/mongoid-history

track_history   :on => [:title, :body],       # I want to track title and body fields only. Default is :all
                  :modifier_field => :modifier, # Adds "referened_in :modifier" to track who made the change. Default is :modifier
                  :version_field => :version,   # Adds "field :version, :type => Integer" to track current version. Default is :version
                  :track_create   =>  false,    # Do you want to track document creation? Default is false
                  :track_update   =>  true,     # Do you want to track document updates? Default is true
                  :track_destroy  =>  false,    # Do you want to track document destruction? Default is false