Module: CoverPicture::ClassMethods

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# File 'lib/content_items/cover_picture.rb', line 8

def has_cover_picture
  class_eval <<-EOV
    include Mongoid::Paperclip
    has_mongoid_attached_file :cover_picture,
                              :styles => {
                                :popup  => "800x600=",
                                :medium => "300x500>",
                                :thumb  => "100x150>",
                                :icon   => "64x90"
                              }
    # check if a picture exists. If you call <code>paperclip_field.url(:mode)</code>
    # paperclip will return <code>.../missing.png</code> at least and this is
    # always true. Use <code>cover_picture_exists?</code> to check if there
    # is a real picture there.
    def cover_picture_exists?
      cover_picture && !cover_picture.original_filename.blank?
    end
  EOV
end