interesting_article.rb

class Article
  include DataMapper::Resource

  INTERESTING_KEYWORDS = %w(ruby rails coffee javascript ember angular
    backbone tdd rspec shoulda gem unicorn nginx sinatra vim mac)

  property :id, Serial
  property :url, String, :unique_index => :u, :required => true, :format => :url
  property :title, String, :required => true, :index => true
  property :interesting, Boolean, :default => false
  property :read_at, DateTime
  timestamps :created_at, :updated_on    # Add these only

  def interesting?
    !!(title =~ Regexp.new(INTERESTING_KEYWORDS.join('|'), Regexp::IGNORECASE))
  end

  def self.interesting_to_me
    all(:interesting => true)
  end

  def self.unread
    all(:read_at => nil)
  end

  def self.search(term='')
    all(:title.like => "%#{term.to_s}%")
  end
end