isbnify

hyphenate, verify and create ISBN13 numbers

• creates valid ISBN13 fake numbers, allready hyphinated
• check ISBN13 validity of a given number
• hyphinate valid ISBN13 number

Include Isbnify into your controller and use the helper actions or call object Isbnify::ISBN class actions.

create_isbn or Isbnify::ISBN.create_isbn

Returns a random, yet valid fake ISBN allready hyphinated.

hyphinate_isbn(String) or Isbnify::ISBN.hyphinate_isbn(String)

Returns hyphinated ISBN or error message as String.

valid_isbn?(String) or Isbnify::ISBN.valid_isbn?(String)

Returns true or false, whether a given ISBN is valid or not. It can be passed as hyphinated ISBN or not.

class ApplicationController < ActionController
  include Isbnify

  def some_method
    hyphinate_isbn("9783404166695")               # returns "978-3-404-16669-5"
    Isbnify::ISBN.hyphinate_isbn("9783404166695") # returns "978-3-404-16669-5"
  end

  def some_other_method
    valid_isbn?("9783404166695")                  # returns true
    Isbnify::ISBN.valid_isbn?("9783404166695")    # returns true
  end

  def some_last_method
    create_isbn                       # returns random well-formed isbn number
    Isbnify::ISBN.create_isbn         # returns random well-formed isbn number
  end

end

This gem was developed and tested with versions 1.9.3 and 2.0.0

1. Fork it
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

Copyright (c) 2013 - 2015 Christoph Seydel. See LICENSE for further details.