kaminari--kaminari/lib/kaminari/models/mongoid_extension.rb

require 'kaminari/models/mongoid_criteria_methods'

module Kaminari
  module MongoidExtension
    module Criteria
      extend ActiveSupport::Concern

      included do
        class_eval <<-RUBY, __FILE__, __LINE__ + 1
          def #{Kaminari.config.page_method_name}(*args)
            super(*args).criteria.merge(self)
          end
        RUBY
      end
    end

    module Document
      extend ActiveSupport::Concern
      include Kaminari::ConfigurationMethods

      included do
        # Fetch the values at the specified page number
        #   Model.page(5)
        scope Kaminari.config.page_method_name, Proc.new {|num|
          limit(default_per_page).offset(default_per_page * ([num.to_i, 1].max - 1))
        } do
          include Kaminari::MongoidCriteriaMethods
          include Kaminari::PageScopeMethods
        end
      end
    end
  end
end