#---
# Excerpted from "Agile Web Development with Rails, 4rd Ed.",
# published by The Pragmatic Bookshelf.
# Copyrights apply to this code. It may not be used to create training material, 
# courses, books, articles, and the like. Contact us if you are in doubt.
# We make no guarantees that this code is fit for any purpose. 
# Visit http://www.pragmaticprogrammer.com/titles/rails4 for more book information.
#---
class Product < ActiveRecord::Base
  default_scope :order => 'title'

  # validation stuff...


  validates :title, :description, :image_url, :presence => true
  validates :price, :numericality => {:greater_than_or_equal_to => 0.01}
# 
  validates :title, :uniqueness => true
  validates :image_url, :format => {
    :with    => %r{\.(gif|jpg|png)$}i,
    :message => 'must be a URL for GIF, JPG or PNG image.'
  }
  validates :title, :length => {:minimum => 10}
end
