```ruby
namespace :'2017_10_30_copy_commentaire_piece_justificative_to_file' do
  task set: :environment do
    commentaires_to_process = Commentaire.where(file:nil).where.not(piece_justificative_id: nil).reorder(id: :desc)

    puts "#{commentaires_to_process.count} commentaires to process..."

    commentaires_to_process.each do |c|
      process_commentaire(c)
    end
  end

  def process_commentaire commentaire
    puts "Processing commentaire #{commentaire.id}"
    if commentaire.piece_justificative.present?
      # https://github.com/carrierwaveuploader/carrierwave#uploading-files-from-a-remote-location
      commentaire.remote_file_url = commentaire.piece_justificative.content_url

      if commentaire.piece_justificative.original_filename.present?
        commentaire.file.define_singleton_method(:filename) { commentaire.piece_justificative.original_filename }
      end

      commentaire.save
      if !commentaire.file.present?
        puts "Failed to save file for commentaire #{commentaire.id}"
      end
    end
  end
end
```

Fix missing body when migrating commentaire
user
```ruby
namespace :'2017_10_30_copy_commentaire_piece_justificative_to_file' do
  task set: :environment do
    commentaires_to_process = Commentaire.where(file:nil).where.not(piece_justificative_id: nil).reorder(id: :desc)

    puts "#{commentaires_to_process.count} commentaires to process..."

    commentaires_to_process.each do |c|
      process_commentaire(c)
    end
  end

  def process_commentaire commentaire
    puts "Processing commentaire #{commentaire.id}"
    if commentaire.piece_justificative.present?
      # https://github.com/carrierwaveuploader/carrierwave#uploading-files-from-a-remote-location
      commentaire.remote_file_url = commentaire.piece_justificative.content_url

      if commentaire.piece_justificative.original_filename.present?
        commentaire.file.define_singleton_method(:filename) { commentaire.piece_justificative.original_filename }
      end

      if commentaire.body.blank?
        commentaire.body = commentaire.piece_justificative.original_filename || "."
      end

      commentaire.save
      if !commentaire.file.present?
        puts "Failed to save file for commentaire #{commentaire.id}"
      end
    end
  end
end
```
assistant