module CmAdmin::ViewHelpers::FieldDisplayHelper

def show_attachment_value(ar_object, field)
  if ar_object.send(field.field_name).attached?
    if ar_object.send(field.field_name).class.name.include?('One')
      content_tag :a, href: rails_blob_path(ar_object.send(field.field_name), disposition: "attachment") do
        ar_object.send(field.field_name).filename.to_s
      end
    elsif ar_object.send(field.field_name).class.name.include?('Many')
      ar_object.send(field.field_name).map do |asset|
        content_tag :a, href: rails_blob_path(asset, disposition: "attachment") do
          asset.filename.to_s
        end
      end.join("\n").html_safe
    end
  end
end