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token_attr

Unique random token generator for ActiveRecord.

Installation

Add token_attr to your Gemfile:

gem 'token_attr', '~> 0.2.0'

Usage

class User < ActiveRecord::Base
  include TokenAttr::Concern
  token_attr :token
end

user = User.new
user.valid?
user.token # => "b8bd30ff"

The token is generated in a before_validation callback only if the it's nil.

Options

Length

The length of the token to generate.

Default: 8

token_attr :token, length: 40

Alphabet

The alphabet to use to generate the token.

Uses hexadecimal characters by default.

Accepted values:

  • :alphabetic - any character from a to z (both lower and upper case)
  • :numeric - any number
  • :alphanumeric - any character or number
  • a string - a string of your choice of the characters you want to use
token_attr :token, alphabet: :numeric      # => "82051173"
token_attr :token, alphabet: :alphabetic   # => "xqnInSJa"
token_attr :token, alphabet: :alphanumeric # => "61nD0lUo"
token_attr :token, alphabet: "token"       # => "ktnekoet"

Contributing

  1. Fork it ( http://github.com/mbillard/token_attr/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

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Unique random token generator for ActiveRecord.

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