Uniqable

Ruby on Rails gem for generating a unique, random token in an ActiveRecord model.

Installation

Add this line to your application's Gemfile:

gem 'uniqable'

And then execute:

$ bundle

Or install it yourself as:

$ gem install uniqable

Usage

First include Uniqable concern to your model and then describe columns which you want to propose with uniq token.

  class User < ActiveRecord::Base
    include Uniqable

    uniqable :uid, :another_column, :or_another_uid_column
  end

It generates unique and random token before each Model instance is created.

if you want you can use :to_param option to generate automatically #to_param method

  uniqable :uid, :slug, to_param: :uid

anyway you have one more method .find_uniqable which one you can use to find your model record

  MyModel.find_uniqable params[:uid]
  # or
  MyModel.find_uniqable! params[:uid] # this will raise exception ActiveRecord::RecordNotFound if record is absent

and another one is .uniqable_fields

  MyModel.uniqable_fields

You can also create your own token callback method and set the field:

  class MyModel
    #...
    def uniqable_uid(field)
      self[field] = 100_000 + rand(999_999)
    end
  end

Development

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.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/mpakus/uniqable.

License

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