Sha256: b21ff06195c472b07badb75dd5e6da039beba1eba7f6630c295e647d9bb11eeb

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Size: 1.33 KB

Versions: 7

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Stored size: 1.33 KB

Contents

module Godmin
  module Resource
    module Pagination
      extend ActiveSupport::Concern

      WINDOW_SIZE = 7

      included do
        helper_method :current_page
        helper_method :pages
        helper_method :total_pages
        helper_method :total_resources
      end

      def apply_pagination(resources)
        resources.limit(pagination_limit).offset(pagination_offset)
      end

      private

      def current_page
        params[:page].present? ? params[:page].to_i : 1
      end

      def pagination_limit
        self.class.per_page
      end

      def pagination_offset
        (current_page * self.class.per_page) - self.class.per_page
      end

      def pages
        pages = (1..total_pages).to_a

        return pages unless total_pages > WINDOW_SIZE

        if current_page < WINDOW_SIZE
          pages.slice(0, WINDOW_SIZE)
        elsif current_page > (total_pages - WINDOW_SIZE)
          pages.slice(-WINDOW_SIZE, WINDOW_SIZE)
        else
          pages.slice(pages.index(current_page) - (WINDOW_SIZE / 2), WINDOW_SIZE)
        end
      end

      def total_pages
        (total_resources.to_f / self.class.per_page).ceil
      end

      def total_resources
        resources.limit(nil).offset(nil).count
      end

      module ClassMethods
        def per_page
          10
        end
      end
    end
  end
end

Version data entries

7 entries across 7 versions & 1 rubygems

Version Path
godmin-0.9.9 lib/godmin/resource/pagination.rb
godmin-0.9.8 lib/godmin/resource/pagination.rb
godmin-0.9.7 lib/godmin/resource/pagination.rb
godmin-0.9.6 lib/godmin/resource/pagination.rb
godmin-0.9.5 lib/godmin/resource/pagination.rb
godmin-0.9.4 lib/godmin/resource/pagination.rb
godmin-0.9.3 lib/godmin/resource/pagination.rb