MacFormat

This is a gem that leverages MacAddress for validations.

Add this line to your application's Gemfile:

gem 'mac_format'

And then execute:

$ bundle

Or install it yourself as:

$ gem install mac_format

In order to validate an attribute, use the validates keyword:

class Device < ActiveRecord::Base

  # ...

  validates :mac, mac_format: true

  # ...

end

Now the mac attribute will be validated:

Device.new(mac: 'invalidmac').valid?        # => false
Device.new(mac: 'aa:bb:cc:dd:ee:ff').valid? # => true

Also, the model in question doesn't need to inherit from ActiveRecord::Base, you only need to include ActiveModel::Validations in your class:

require 'mac_format'

class Awesome
  include ActiveModel::Validations
  attr_accessor :mac
  validates :mac, mac_format: true
end

awesome = Awesome.new

awesome.mac = "aa-bb-cc-dd-ee-ff"
awesome.valid? # => true

awesome.mac = "invalidmac"
awesome.valid? # => false

1. Fork it ( http://github.com/a10networks/mac_format/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 new Pull Request