A gem that makes working with years in different eras palatable


Add this line to your application's Gemfile:

gem 'warpera'

And then execute:

$ bundle

Or install it yourself as:

$ gem install warpera


Require the gem in your files with:

require 'warpera'

When working directly with the numbers and strings, use the conv_s and conv_i methods.

When needing control over the year and era, use the Warpera::Pair class. This is helpful, for instance, dealing with storing a year in a database. Instead of potentially storing two fields for one attribute, use this to store one field for the one attribute.


After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.


Bug reports and pull requests are welcome on the GitHub repo.


The gem is available as open source under the terms of the MIT License