api.dmsf_file do
  api.id @file.id
  api.title @file.title
  api.name @file.name
  api.project_id @file.project_id
  api.dmsf_folder_id @file.dmsf_folder_id if @file.dmsf_folder_id
  api.content_url download_dmsf_file_url(@file)
  api.revisions @file.dmsf_file_revisions.visible[@revision_pages.offset, @revision_pages.per_page].each
end