ActsAsLearnable

ActsAsLearnable is a Ruby gem for ActiveRecord models. It provides a simple way to create flashcards in your app. It automatically schedules flashcards for review depending on recall quality (1 to 5). You can easily create a Spaced Repetition System (SRS) using this gem. Flashcards are scheduled using SuperMemo 2 algorithm.

Installation

Add this line to your application's Gemfile:

gem 'acts_as_learnable'

And then execute:

$ bundle

Or install it yourself as:

$ gem install acts_as_learnable

Create and run migrations (will add flashcard fields if table already exists):

$ rails generate flashcard MODEL
$ rake db:migrate

Usage

Within your model call acts_as_learnable method:

class Flashcard < ActiveRecord::Base
  acts_as_learnable
end

It will automatically extend your class with all necessary methods.

Then you can review flashcards:

card = Flashcard.create
card.review(4)   # => Recall quality from 1 (bad) to 5 (perfect)
card.due_today?  # => false
card.due         # => 2015-03-11
card.studied_at  # => 2015-03-10
card.interval    # => 1
card.repetitions # => 1

Contributing

1. Fork it ( https://github.com/itsdan/acts_as_learnable/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request

TODO

• More detailed README
• Other repetition algorithms (Anki)