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Voteable Mongoid

Voteable Mongoid allows you to make your Mongoid::Document objects voteable (up or down)

For instance, in a Q&A site, a user can vote up (or down) on a post or a comment.

When user provided enough information, voteable_mongoid will use only one update-in-place operation per collection.


Rails 3.0.x

To install the gem, add this to your Gemfile

gem 'voteable_mongoid'

After that, remember to run “bundle install”


Making Post and Comment voteable, User being the voter


class Post
  include Mongoid::Document
  include Mongoid::Voteable

  # set points for each vote
  vote_point self, :up => +1, :down => -1

  references_many :comments


require 'post'

class Comment
  include Mongoid::Document
  include Mongoid::Voteable

  referenced_in :post

  vote_point self, :up => +1, :down => -3

  # each vote on a comment can affect votes count and point of the related post as well
  vote_point Post, :up => +2, :down => -1


class User
  include Mongoid::Document
  include Mongoid::Voter

Making a vote, :up)
# is equivalent to =>, :value => :up)

# this will affect @post.votes_count and @post.votes_point as well, :down)

Getting votes count and points

puts @post.votes_point
puts @post.votes_count
puts @post.up_votes_count
puts @post.down_votes_count

Getting the list of voted objects (votees) of a class


Undo a vote



  • Alex N. - Author

  • Stefan N. - Unvoting

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Licensed under the MIT license.