module Paperclip::Schema::TableDefinition

def attachment(*attachment_names)
  options = attachment_names.extract_options!
  attachment_names.each do |attachment_name|
    COLUMNS.each_pair do |column_name, column_type|
      column_options = options.merge(options[column_name.to_sym] || {})
      column("#{attachment_name}_#{column_name}", column_type, column_options)
    end
  end
end

def has_attached_file(*attachment_names)
  ActiveSupport::Deprecation.warn "Method `t.has_attached_file` in the migration has been deprecated and will be replaced by `t.attachment`."
  attachment(*attachment_names)
end