module ActiveAdmin::ResourceController::DataAccess

def apply_pagination(chain)
  # skip pagination if already was paginated by scope
  return chain if chain.respond_to?(:total_pages)
  page_method_name = Kaminari.config.page_method_name
  page = params[Kaminari.config.param_name]
  chain.public_send(page_method_name, page).per(per_page)
end