more work

app/presenters/paginators/post.rb

@@ -0,0 +1,26 @@
+module Paginators
+  class Post < Base
+    attr_accessor :post_set
+    
+    def initialize(post_set)
+      @post_set = post_set
+    end
+    
+    protected
+      def total_pages
+        (post_set.count.to_f / post_set.limit.to_f).ceil
+      end
+      
+      def current_page
+        [1, post_set.page].max
+      end
+      
+      def sequential_link(template)
+        template.posts_path(:tags => template.params[:tags], before_id => post_set.posts[-1].id, :page => nil)
+      end
+    
+      def paginated_link(template, page)
+        template.link_to(page, template.posts_path(:tags => template.params[:tags], :page => page))
+      end
+  end
+end