class ActiveAdmin::Views::PaginatedCollection

def page_entries_info(options = {})
  if options[:entry_name]
    entry_name = options[:entry_name]
    entries_name = options[:entries_name] || entry_name.pluralize
  elsif collection_is_empty?
    entry_name = I18n.t "active_admin.pagination.entry", count: 1, default: "entry"
    entries_name = I18n.t "active_admin.pagination.entry", count: 2, default: "entries"
  else
    key = "activerecord.models." + collection.first.class.model_name.i18n_key.to_s
    entry_name = I18n.translate key, count: 1, default: collection.first.class.name.underscore.sub("_", " ")
    entries_name = I18n.translate key, count: collection.size, default: entry_name.pluralize
  end
  if @display_total
    if collection.total_pages < 2
      case collection_size
      when 0; I18n.t("active_admin.pagination.empty", model: entries_name)
      when 1; I18n.t("active_admin.pagination.one", model: entry_name)
      else; I18n.t("active_admin.pagination.one_page", model: entries_name, n: collection.total_count)
      end
    else
      offset = (collection.current_page - 1) * collection.limit_value
      total = collection.total_count
      I18n.t "active_admin.pagination.multiple",
             model: entries_name,
             total: total,
             from: offset + 1,
             to: offset + collection_size
    end
  else
    # Do not display total count, in order to prevent a `SELECT count(*)`.
    # To do so we must not call `collection.total_pages`
    offset = (collection.current_page - 1) * collection.limit_value
    I18n.t "active_admin.pagination.multiple_without_total",
           model: entries_name,
           from: offset + 1,
           to: offset + collection_size
  end
end