diff --git a/app/controllers/e_papers_controller.rb b/app/controllers/e_papers_controller.rb
index 56a5bc5..95265d3 100644
--- a/app/controllers/e_papers_controller.rb
+++ b/app/controllers/e_papers_controller.rb
@@ -131,18 +131,53 @@ class EPapersController < ApplicationController
 
   def showpaper
     params = OrbitHelper.params
-    if params[:uid].present?
-      criteria = PaperCriteria.where(:uid => params[:uid]).first
-      return if criteria.nil?
-    end
+    return {} if params[:uid].blank?
+  
+    criteria = PaperCriteria.where(:uid => params[:uid]).first
+    return {} if criteria.nil?
+  
+    banner_image = nil
     if criteria.banner_image.present?
       banner_image = EPaperImage.find(criteria.banner_image).image.url
     end
+  
+  
+    topics = EPaperTopic.where(
+      :period.gte => criteria.start_date,
+      :period.lte => criteria.end_date
+    ).desc(:period)
+  
+    papers = topics.group_by(&:category)
+  
+    data = []
+    papers_sorted = get_all_categories.map do |v|
+      tmp = papers.select{|cat,topic_list| (cat.id==v.id rescue false)}
+      tmp.count==0 ? nil : tmp
+    end.compact
+  
+    papers_sorted.each do |paper|
+      paper.each do |category, topic_list|
+        topics_data = Array(topic_list).compact.collect do |topic|
+        {
+          "title" => topic.title,
+          "link_to_show" => OrbitHelper.url_to_show(topic.to_param),
+          "description" => topic.description,
+          "img_url" => topic.image.url || EmptyImgUrl,
+          "img_url_thumb" => topic.image.thumb.url || EmptyImgUrl,
+          "category_title" => category.title
+        }
+        end
+        data << {
+          "category_title" => category.title,
+          "category_link" => "#{params["url"]}/#{params["page"]}?method=topics&category=#{category.id.to_s}",
+          "topics" => topics_data
+        }
+      end
+    end
+  
     {
-      "title" => criteria.title,
-      "banner_image" => banner_image,
-      "content" => criteria.content,
-      "description" => criteria.description
+      "categories" => data,
+      "extras" => {}
     }
   end