product.rb 761 B

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  1. #---
  2. # Excerpted from "Agile Web Development with Rails",
  3. # published by The Pragmatic Bookshelf.
  4. # Copyrights apply to this code. It may not be used to create training material,
  5. # courses, books, articles, and the like. Contact us if you are in doubt.
  6. # We make no guarantees that this code is fit for any purpose.
  7. # Visit http://www.pragmaticprogrammer.com/titles/rails4 for more book information.
  8. #---
  9. class Product < ActiveRecord::Base
  10. validates :title, :description, :image_url, presence: true
  11. validates :price, numericality: {greater_than_or_equal_to: 0.01}
  12. #
  13. validates :title, uniqueness: true
  14. validates :image_url, allow_blank: true, format: {
  15. with: %r{\.(gif|jpg|png)$}i,
  16. message: 'must be a URL for GIF, JPG or PNG image.'
  17. }
  18. end