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class Photo < ActiveRecord::Base
  has_attachment :content_type => :image,
  :storage => :file_system,
  :resize_to => '800x600>',
  :thumbnails => { :thumb => '80x80>', :main => '375x375>'},
  :processor => :rmagick

  validates_as_attachment 

  def resize_image(img, size)
    self.temp_path = write_to_temp_file(img.to_blob {self.quality = 30})
  end
end