gistfile1.txt

class Deal
  include DataMapper::Resource

  property :id,         Serial
  property :name_key,   String
  property :dealer,     String
  property :name,       Text
  property :link,       Text
  property :price,      Integer
  property :visible,    Boolean,    :default  => true
  property :created_at, DateTime
  
  validates_is_unique :name_key
  
  def name_key=(link)
    attribute_set(:name_key, Digest::MD5.hexdigest(link))
  end
  
  #TODO optimize this evil loop
  def self.to_notify(opts={})
    opts = {:keywords => [] }.merge!(opts)
    deals = []
    opts[:keywords].each do |key|
      deals = deals | Deal.all(:visible => true, :name.like => "%#{key}%")
    end
    deals
  end
  
end