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
Install the gem
gem install mm-voteable
Or add it to your Gemfile
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
I made this plugin for voting up and down on articles (kind of like stack overflow) so there are currently some limitations
the vote value can only be one of 1 or -1
the voteable model has a 'user' belongs_to association
a user can only vote once on a voteable item
the owner of a voteable item, cannot vote
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
Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet
Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it
Fork the project
Start a feature/bugfix branch
Commit and push until you are happy with your contribution
Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.
Copyright © 2010 Luke Cunningham. See LICENSE.txt for further details.