mm-voteable

A very simple mongomapper plugin to add vote up/down superpowers to your models.

v1.2 is a mongomapper 0.9.0 update to support the new plugin system if you are using mongomapper 0.8.x please use version 1.1 of the gem

Usage

Install the gem

gem install mm-voteable

Or add it to your Gemfile

gem 'mm-voteable'

Then add the voteable plugin to you MongoMapper::Document

class Post
  include MongoMapper::Document
  plugin MongoMapper::Plugins::Voteable

  def on_add_vote(vote)
    do something when a vote is added...
  end
end

You must implement the on_add_vote callback! - It can be an empty implementation, but I use it to create ActivityStream Items after someone votes on a NewsArticle

@post = Post.create
@voter = User.create

@post.add_vote!(1, @user)
@post.add_vote!(1, @user)

@post.votes_count #=> 2
@posts.votes #=> [<Vote>]
@posts.voters #=> [<User>]
@posts.voters.include?(@voter) #=> true

Limitations

I made this plugin for voting up and down on articles (kind of like stack overflow) so there are currently some limitations

Feel free to code any of these limitations out and send me a patch, this is just how I have used it so far

Contributing to mm-voteable

Copyright © 2010 Luke Cunningham. See LICENSE.txt for further details.