content format_content(@message.content)
created_at @message.created_at
updated_at @message.updated_at

author do
  name @message.creator.name.familiar
  email_address @message.creator.email_address_with_name
  url url_for(@message.creator, format: :json)
end

if current_user.admin?
  visitors calculate_visitors(@message)
end

comments @message.comments do |comment|
  content comment.content
  created_at comment.created_at
end

attachments @message.attachments do |attachment|
  filename attachment.filename
  url url_for(attachment)
end