refactoring

app/logical/post_sets/numbered.rb

@@ -36,6 +36,14 @@ module PostSets
       @page ||= params[:page] ? params[:page].to_i : 1
     end
     
+    def total_pages
+      (count / limit.to_f).ceil
+    end
+    
+    def current_page
+      page
+    end
+    
     def offset
       ((page < 1) ? 0 : (page - 1)) * limit
     end

app/logical/post_sets/post.rb

@@ -41,6 +41,10 @@ module PostSets
       @tag_array ||= ::Tag.scan_query(tag_string)
     end
     
+    def tags
+      tag_array
+    end
+    
     def validate
       super
       validate_query_count

app/logical/post_sets/sequential.rb

@@ -18,6 +18,22 @@ module PostSets
       end
     end
     
+    def first_id
+      if posts.any?
+        posts.first.id
+      else
+        nil
+      end
+    end
+    
+    def last_id
+      if posts.any?
+        posts.last.id
+      else
+        nil
+      end
+    end
+    
     def pagination_options
       {:before_id => before_id, :after_id => after_id}
     end