Awesome

ActsAsVersioned for MongoMapper

Basic MongoMapper port of technoweenie's acts_as_versioned. Stores changed attributes in a Hash key inside an Embedded Document instead of copying all keys from the original model.

Note: This plugin is intended for MongoMapper 0.8.6. The plugin architecture must be slightly changed for it to work on 0.9+.

Usage

Basic Example

class Page
  include MongoMapper::Document

  plugin MongoMapper::Acts::Versioned

  key :title, String
end

page = Page.create(:title => 'title')
page.version              # => 1
page.versions.size        # => 1

page.title = 'new title'
page.save

page = page.reload
page.version              # => 2
page.versions.size        # => 2
page.title                # => 'new title'

page.revert_to!(1)

page = page.reload
page.version              # => 1
page.versions.size        # => 2
page.title                # => 'title'

Keys that do not trigger new versions

Default ignored keys are:

"_id"
"created_at"
"updated_at"
"creator_id"
"updater_id"
"version"
"_type"
"_versioned_type"
versioned_foreign_key

Ignoring additional keys

Simply add self.non_versioned_keys << 'new_skipped_key' somewhere in your model.

Tested with

MongoMapper 0.8.3
Ruby 1.9.2

TODO

Add loads more options
Properly document those options

Bundler note

Make sure to specify :require => 'acts_as_versioned' in your Gemfile.