kjwierenga (owner)

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gist: 224241 Download_button fork
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reorder_scoped_acts_as_list.rb #
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Entry.transaction do
  Playlist.all.each do |playlist|
    if positions_max = playlist.entries.maximum(:position)
      ActiveRecord::Base.connection.execute("
        UPDATE entries SET position = #{positions_max + 1} - position
        WHERE playlist_id = #{playlist.id}")
    end
  end
end