# -*- coding: utf-8 -*-
#
# Copyright (C) 2010  SHIMODA Hiroshi <shimoda@clear-code.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

require "groonga"

module Groonga
  module WillPaginateAPI
    def total_pages
      n_pages
    end

    def per_page
      n_records_in_page
    end

    def total_entries
      n_records
    end

    def out_of_bounds?
      current_page > total_pages
    end

    def offset
      (start_offset || 0) - 1
    end
  end

  module Pagination
    include WillPaginateAPI
  end
end